This gives more travel and lighter weight. MM Coronavirus Update. In this example, the baseline spring rate of 500 lb/in was too soft, which resulted in a shock that collapsed more than the desired amount at ride height (2. net forum - Linear springs are the same spring rate no matter how much they are compressed (preloaded). Mon-Fri 8am-4pm PST. Here’s a few quick charts:. This calculator will only give approximations depending on the accuracy of your information. Viking Performance specializes in high quality performance shock absorbers, high-travel coil springs, rod ends, spherical bearings and related suspension components. Note: This stock check system is for US model lowering springs and coilover kits. It is a percentage of the overall spring rate used in calculating the spring tension for the specified turns of preload. 25" diameter for MM Rear Coil-overs. Check out our huge selection of coil springs for daily driving, racing, off road and more. Spring Chart. absorber, say a 2. If we find the calculated Spring Rate with a 2. The total pressure exerted is 1000 lbs per shock. Part #5436 Spring, shock (GTR) (2. The correct spring rate for rider weight depends on the suspension design, travel, and leverage ratio. Regardless of whether a front coil-over conversion uses a true coil-over or a hybrid configuration, these packages seldom change the motion ratio of the shock and spring, so spring rates are usually an apples-to-apples comparison with OE-configuration springs and shocks. 12/10 would be a good choice for a daily and track use. com, the official website of 8-Lug magazine. I initially. 6% of the spring force is contributing to the motion of the suspension. Positioning tab (where applicable). The spring rate chart below is a general guideline. REAR = Springs marked: HA, or (R), or Rear. 8 rate gold) Part #5440 Spring, shock (GTR) (4. skunk2 using linear type springs. Our off-road Performance Series coil-over shocks will suspend your vehicle’s weight and provide our race-proven, performance damping technology to tame the toughest terrain. The spring perch has an adjustment ring on top that is adjusted with a special wrench provided in the kit. Spring Rate is a very popular unit used to describe how soft or stiff a spring feels. AFCO racing and performance parts began over 30 years ago with a simple need for better suspension. I run coilovers in front (traditional MacPherson strut set up) - 275 lb/in. Part #5436 Spring, shock (GTR) (2. Keep in mind that spring rate selection is a means to an end, not the end itself. I see some 115lb/in springs, but think I may need much heavier. So the answer to your question is yes a lighter spring rate will yield a lower stance. Coilover springs are polyplastic coated to protect them from rust and corrosion. HYP 14B0200/425UHT is a 14” free length spring with 2. This is critical as too many people settle with the overly stiff spring rates. The equation for determining spring rate of springs in series is there. For dual rate coilovers you will need to multiply the spring rate calculated above by two to get the required spring rates. Please contact us for availability of all other products. Wire diameter 3. Afco's 360° Polished Extreme Chrome Coil Over Springs offer a wide range of rates and the market's best warranty. 4 rate black) Part #5442 Spring, shock. If you stack a 10-inch 200 rate and 6-inch 200 rate spring, you get a combined rate of 100 pounds per square inch. With these examples it is brutally obvious how the. XX kg/mm x 56 = ( Spring rate in lbs/in ) Example 8kg/mm x 56= 448lb Spring For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula XXX lbs/in ÷ 56 = ( spring rate in KG/mm Example 500lb/in ÷ 56 = 8. Suspension, exhaust, brakes and cooling. BC Racing North America, one of the largest distributors of custom automotive aftermarket suspension products globally, offers more than 1100 unique suspension kits direct to consumer and through distribution and supply chains. The coil-over's that I installed in the rear came with 150 lb/springs on QA1 coilover's. You will need to remove the coilovers from the car and use a 17mm socket and impact gun to remove the top mount. Note the small helper spring above the main coilover spring; this is to improve small bump absorption and ride. This kit includes 550# springs. Mon-Fri 8am-4pm PST. When a spring takes a "set" the rate of the coil has not changed, only the amount of load it will handle does. Below you will find a complete list of coilover springs available for immediate shipment. The spring rates and motion ratios are exactly the same between stock and coil over (which is why the coil over spring rates are the same high rates as stock setups). Well, except for that obnoxious front end rake. A coilover shock incorporates a coil spring mounted around the outside of the shock body that holds the vehicles weight. Afco's 360° Polished Extreme Chrome Coil Over Springs offer a wide range of rates and the market's best warranty. When comparing a single spring, like that of a stock cherokee, to a coilover, the coilover spring(s) is quite longer. The coilovers are TCI All American’s and they have a progressive rate spring. In other words, you would have to have a machine that would compress the spring to the install height first. Positioning tab (where applicable). Each spring is tested and guaranteed within 5% of the advertised rate. Choosing a spring rate for a QA1 Pro Coil bolt-in coil-over system is easy! This cataloged coil-over kit for your vehicle has already gone through the R&D process and the spring length has been determined, so choosing a spring rate is simply a matter of matching the vehicle weight to our available spring rate charts. Point ・Increasing 1 kg of spring rate of front and rear from MAX III enhances the stability during high speed driving furthermore. 5", and 3" ID coilovers, made with extremely linear rate as well as the most amount of stroke in the industry. Check out our offerings for dozens of applications HERE. I prefer to mount the coil-over shock behind the axle centerline. 75 ID springs are for 3. JEGS High Performance Parts | Aftermarket Auto Parts. The same 1,000 pounds divided by 1. Re: Which spring rate for front QA1 Coil over on '68 Part of this story is that there is very little to no benefit to a coil over on a Chevelle. Careful design provides the most bump travel possible. Point ・Increasing 1 kg of spring rate of front and rear from MAX III enhances the stability during high speed driving furthermore. front 90mm) Part # 5437 Spring, shock (GTR) (3. All of our coilover kits also include Helper springs. Well, except for that obnoxious front end rake. Definitions: Spring Rate is half the difference between the loads 1 inch above and 1 inch below a specified position. 2 QA1 Single Adjustable, Coil-over Front Shocks 2 QA1 Front Springs Coil-over Kit for Front Shocks. One is called Stacked springs because all you are doing is stacking two springs in series, with the same or different rates, to achieve a longer spring that is softer rate than either of the springs used. 8Hz rear Suspension Frequency yields spring rates that we feel are a bit too high or low, we’ll adjust SF to coincide with our years of experience choosing and testing spring rates on a wide range of track cars and race cars. Now lets compress this Dual Spring system 8 inches. The first thing we noticed was that the spring rates were crossed out, and we got 1KG more than expected in the front we got 9/5 kg's, instead of the usdm 8/5's. Unlike some constant-rate lowering springs that are stiffer all the way through the range of compression, these will get progressively stiffer as the coil compresses during hard cornering. 2wd and 4wd Off Road Front Shock Springs : LOSA5128: 2 2” Spring 4. Many of our customers are looking to buy coilovers or lowering springs for their car. 9 kg/mm spring. Application Charts for Drag Racing Brake Kits, adjustable Shocks, Coilovers, Springs, Gear Sets, Installation Kits and C-clip axles. My aftermarket "sport springs" were about 180 lb/in. To get that height (with no Preload) with single springs gets met right at 200lb Front/250lb Rear. had a few ask me if I had any info on moog springs, most 2wd S10's have either 5658's or 5660's as you can see from the chart the increased spring rate of the 5662';s and 5664's, this should clear up any confusion whether Moog 5664's are a stock S10 spring (from this chart you see they are not). NOTE: Springs are 2 1/2" ID and are ink-stamped. Does anyone know the FP GT350 lowering spring rates? BMR now makes a true linear spring for the GT350 with spring rates of: 250 lb/in front linear 980 lb/in rear linear I’d much rather run a linear spring but I’m also wanting to compare the two rates. I am going to be buying coil-overs soon, and I am trying to decide what spring rates to run for a autocross/daily driven car and I want them to work the sway-bars I have installed. To use with 04-07 rear tophats, a spacer will need to be used. 12" 130-250LB Rate Variable Rate Coil over Spring Dual rate 2- 1/2" Coil over spring Viking’s ultra-lightweight, high travel springs were engineered to have an expanded body diameter for unsurpassed performance. Keep in mind that spring rate selection is a means to an end, not the end itself. Below you will find a complete list of coilover springs available for immediate shipment. Spring rubbers will affect your spring depending on the rate of your spring, the installed height, and the actual rate of the rubber used in the manufacture of the spring rubber. “The coilover’s angle has a slight effect on the spring rate, but you usually won’t need to factor in a spring-rate change unless you have more than 20 degrees of shock angle,” Steve stated. MM Coronavirus Update. 9 rate white) (std. As you can see from the accompanying chart, courtesy of QA1, the correction factor increases as the angle increases to the point that if a coilover is mounted at 45 degrees, its spring rate is halved. absorber, say a 2. For dual rate coilovers you will need to multiply the spring rate calculated above by two to get the required spring rates. GAZ produce a wide range of performance shock absorbers with adjustable damper rates. By Speedway Tech Team. If we find the calculated Spring Rate with a 2. Not coils seated. The higher a spring rate, the stiffer. 75in), spring lengths from 127mm (5in) to 280mm (11in), and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs). Please be aware Our supply chain is suffering major pandemic-related disruptions. For starters, the coil spring and the strut are made to perfectly fit each other. Rear IRS coilovers have a wheel rate that’s 1⁄2 the spring rate. #GWS-401-10350 (350 spring rate). Re: Which spring rate for front QA1 Coil over on '68 Part of this story is that there is very little to no benefit to a coil over on a Chevelle. Types of Coilovers Coilover Sleeves  Coilover sleeves resemble lowering spring. 2017-2019 F250 & F350 6. Coil Spring Rate Calculator. Choosing a spring rate for a QA1 stock mount coil-over system (also called Pro Coils or direct-fit coil-overs) is easy! This cataloged coil-over kit for your vehicle has already gone through the R&D process and the spring length has been determined, so choosing a spring rate is simply a matter of matching the vehicle weight to our available spring rate charts below. check out this example chart for better understanding. Cruiser / Daily Driver. Springs are not returnable. Spring rates available: 350 lbs. This is critical as too many people settle with the overly stiff spring rates. JEGS High Performance Parts | Aftermarket Auto Parts. Customizable - You may order your FA coilovers with custom spring rates and shock valving to suit. Spring Rate is a very popular unit used to describe how soft or stiff a spring feels. All of our coilover kits also include Helper springs. The steps below will help you to find an approximate spring rate for your coil-over application. Coil-Over Spring Rates: Front Springs: 350 - 400 lb/in: Solid Axle Rear Springs: 225 - 300 lb/in: IRS Rear Springs: 500 - 600 lb/in: MM2 Race Series Spring. rear 90mm) Part #5439 Spring, shock (GTR) (3. 2012 Challenger R/T 6M mods: Barton Shifter, EBC Stage 5 Street/Track brake pads & rotors, Trinity T2, AEM Brute Force CAI, catch can, Flowmaster outlaw catback, 180 t-stat, Skip Shift Eliminator; CDV delete, Splash Guards, BC Racing Br coilovers (PB 1320 14. Use at your own discretion. The R&D has already been done for you. Many of our customers are looking to buy coilovers or lowering springs for their car. As you can see from the accompanying chart, courtesy of QA1, the correction factor increases as the angle increases to the point that if a coilover is mounted at 45 degrees, its spring rate is halved. The knee (sharp bend) in the chart below shows where the valving goes from linear to digressive. Complete spring and shock absorber suspension kits are available in GAZ GHA and GAZ GOLD versions. Spring Rate Conversion Chart – Easily Convert KG/mm to LBS/in Roughly 1 KG/mm is equal to 55. range and a 100 lb. Spring Types All call-outs below each following illustrations (ex-cept torsion springs) refer to: 1. 8"-travel coil-over. Suppose we have run a class using stock spring rates at the front with stock lower control arms and now decide to run a class that uses a fabricated front clip and coilover shocks and springs that. “Baseline spring rate” is defined as the pound-per-inch rate (lb/in) at which the spring supports the corner weight of the vehicle with the coil-over shock at the correct installed height without the need to preload the spring. With progressive springs, preloading the spring does all the same things as linear springs, but it also increases the initial rate of the spring. All springs are sold in pairs. On this Episode of Rock Rods Tech Jake Burkey the driver of the Riot Buggy Rock Bouncer gives you an in depth look of how to choose the correct spring rate a. Even if you calculate based off that there's room for personal preference & riding style. 5"• Spring rate: 400 Lb• Color: BlueSold each. Spring rubbers will affect your spring depending on the rate of your spring, the installed height, and the actual rate of the rubber used in the manufacture of the spring rubber. Longer Lower Springs. 25in) to 70mm (2. 1 rate tan) Part #5441 Spring, shock (GTR) (4. Heat treated and chrome plated. The ast set I am looking at comes with 350 and 250, some people that I have talked to say that the rear should have. Our off-road Performance Series coil-over shocks will suspend your vehicle’s weight and provide our race-proven, performance damping technology to tame the toughest terrain. The knee (sharp bend) in the chart below shows where the valving goes from linear to digressive. The R&D has already been done for you. 9K Spring Rate So for a 8 kg/mm spring you would have a 448lb spring, and a 500lb spring is equal to a 8. The same 1,000 pounds divided by 1. AXLE TYPE SPRING LENGTH 900-1099 1100-1249 1250-1449 1450-1599 1600-1899 1900+ Solid Axle 8” 200 225 300 350 400 450 9” or 10” 175 200 225 250 275 350. Is best used for crusing, day to day use, and long distance driving. 70), at least on an S13, is way lower than the front motion ratio (~0. So the answer to your question is yes a lighter spring rate will yield a lower stance. absorber, say a 2. 43 Recommended Ride Height (IN. The shape of the spring is most important. If another 500 lb. Many of our customers are looking to buy coilovers or lowering springs for their car. For dual rate coilovers you will need to multiply the spring rate calculated above by two to get the required spring rates. Check out our offerings for dozens of applications HERE. A coilover shock incorporates a coil spring mounted around the outside of the shock body that holds the vehicles weight. In this case it is. There is more development put into proper valving and matching spring rates. , or 110 lb. A spring’s Spring Rate and a spring’s Load Rate are the two most misunderstood spring terms out there. Open 24x7 - Same Day Shipping! Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 Orders. I just pulled off one of my rear coilovers to find out the spring rate. Disclaimer:The stock availability shown below is not guaranteed. For starters, the coil spring and the strut are made to perfectly fit each other. "Physically" remove the helper spring completely from the coilover assemblies. 2” of bump travel. Spring Types All call-outs below each following illustrations (ex-cept torsion springs) refer to: 1. #GWS-401-11250 (250 spring rate) #GWS-401-11300 (300 spring rate). The in-house Viking engineering and product development team consistently push beyond the forefront of technological advancement and quality in suspension systems and components. When a spring takes a "set" the rate of the coil has not changed, only the amount of load it will handle does. range and a 100 lb. Godspeed Project custom springs are made from SAE9254 steel wire and cold wound. Spring Rate & Pressure at Compressed Length This is really quite simple. It may be that 1/2 of the top and bottom coil is seated causing a spring with 8 coils to have the distance of 7 free. 9K Spring Rate So for a 8 kg/mm spring you would have a 448lb spring, and a 500lb spring is equal to a 8. Spring rubbers will affect your spring depending on the rate of your spring, the installed height, and the actual rate of the rubber used in the manufacture of the spring rubber. Suspension, exhaust, brakes and cooling. net forum - Linear springs are the same spring rate no matter how much they are compressed (preloaded). Tags: Tech, Street Rod, Street. 0 Coilovers. The shape of the spring is most important. The same 1,000 pounds divided by 1. skunk2 using linear type springs. 25" diameter for MM Rear Coil-overs. This calculator will only give approximations depending on the accuracy of your information. The R&D has already been done for you. Check out our huge selection of coil springs for daily driving, racing, off road and more. Now, I don't know what the motion ratio was stock, but I went and measured the current setup, and the motion ratio appears to be about. Another definition would be: The amount of force it takes to compress the spring 1-inch and is expressed in ld/in. Don't guess at this. Check out our offerings for dozens of applications HERE. Springs are lightweight, high quality, Made In USA. This keeps it from interfering with the four-link bars and lowers the top mounting location. SPRING RATE CHART The charts below are a general guideline for selecting spring rates. ・Focusing on the ride quality leads to the product quality improvement, and gradual suspension movement is pursued. Standard Conventional Springs. Kit Includes: (2) Front coil over shocks, double adjustable (2) Rear shocks, double adjustable (2) Front springs with choice of 250, 350, 450 or 550 spring rate; Spanner Wrench and thrust bearing kit. The same springs that are found on Indycars, ALMS, Grand Am and more. This is my best guess at spring rates sutable for a Camaro for best handling. Check out our huge selection of coil springs for daily driving, racing, off road and more. For starters, the coil spring and the strut are made to perfectly fit each other. 330" loaded ht 10", load lbs 2404. Just as I said, want to completely go with coilovers on rear, so I converted a set of belltech shocks for coilover, but the springs I have are a little too light, still need some air in the bags to get the ride height. 16" springs. Longer Lower Springs. I have an IRS in the rear, hence the short springs in the back. The coilovers are TCI All American’s and they have a progressive rate spring. Types of Coilovers Coilover Sleeves  Coilover sleeves resemble lowering spring. 75in), spring lengths from 127mm (5in) to 280mm (11in), and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs). #GWS-401-10400 (400 spring rate). Types Of Front Coilover Springs Street/Strip Driving - LMR suggests a 12"-14" 150lb-200lb spring setup. k = L ÷ T k = 20. The canned value is a best guess of the effect ECE will have on preload adjustment. This gives more travel and lighter weight. AXLE TYPE SPRING LENGTH 900-1099 1100-1249 1250-1449 1450-1599 1600-1899 1900+ Solid Axle 8” 200 225 300 350 400 450 9” or 10” 175 200 225 250 275 350. If you stack a 10-inch 200 rate and 6-inch 200 rate spring, you get a combined rate of 100 pounds per square inch. “Baseline spring rate” is defined as the pound-per-inch rate (lb/in) at which the spring supports the corner weight of the vehicle with the coil-over shock at the correct installed height without the need to preload the spring. The RS-R coilovers are all Monotube hand assembled systems specifically designed to improve ride quality, performance, and comfort. rear 90mm) Part #5439 Spring, shock (GTR) (3. I run coilovers in front (traditional MacPherson strut set up) - 275 lb/in. Half of the manufacturers show their spring rates as kg/mm while others show them as lbs/in. October 24, 2018. Careful design provides the most bump travel possible. A coilover spring is a compression coil spring, that is, a spring that is designed to carry a load by compressing. Or, you use this formula to guesstimate: spring weight = rider weight x leverage ratio. It's my daily summer driver. I am going to be buying coil-overs soon, and I am trying to decide what spring rates to run for a autocross/daily driven car and I want them to work the sway-bars I have installed. Reassemble and tighten with. Each spring is tested and guaranteed within 5% of the advertised rate. RideTech has developed bolt-on coilover suspension systems that already includes correct rate springs. It's easy to forget what the conversion is so we put together a quick and easy chart to use for reference. Look at the available spring rates and their applications below. The rate transition started at 625lb of spring load and was complete by 800-825lb of spring load. 0" ID End Coil Over Spring Select Height and Rate Below SELECT HEIGHT 18" 16". Spring rates available: 350 lbs. XX kg/mm x 56 = ( Spring rate in lbs/in ) Example 8kg/mm x 56= 448lb Spring For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula XXX lbs/in ÷ 56 = ( spring rate in KG/mm Example 500lb/in ÷ 56 = 8. Springs are not returnable. Since this wire can flex more than conventional wire, these springs have greater travel than our competitors’ springs of the same rate. Here's a few pics before the install, click on an image to view it full screen: We did the rears first as they are the most difficult to do on the RX8. 1968-74 Nova & Chevy II Front Coilover Kits. SPRING RATE CHART The charts below are a general guideline for selecting spring rates. My aftermarket "sport springs" were about 180 lb/in. To order the kit with your desired spring rate. Fox / RC4. A coilover spring is a compression coil spring, that is, a spring that is designed to carry a load by compressing. Easy way to remember is 1 KG/mm = 56 LBS/in. Spring Angle. Not coils seated. Color code stripes 2. Viking Performance specializes in high quality performance shock absorbers, high-travel coil springs, rod ends, spherical bearings and related suspension components. Note: This stock check system is for US model lowering springs and coilover kits. To calculate the compression spring rate of this spring, divide the load of 20 pounds by the distance traveled of 2”. XX kg/mm x 56 = ( Spring rate in lbs/in ) Example 8kg/mm x 56= 448lb Spring For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula XXX lbs/in ÷ 56 = ( spring rate in KG/mm Example 500lb/in ÷ 56 = 8. It's easy to forget what the conversion is so we put together a quick and easy chart to use for reference. The winner of the 1965 Indianapolis 500 and every race since then, has used our suspension springs. A coilover shock incorporates a coil spring mounted around the outside of the shock body that holds the vehicles weight. 0" ID End Coil Over Spring Select Height and Rate Below SELECT HEIGHT 18" 16". Ive looked and cant seem to find them. Example : If a spring's rate is linear (most racing springs have linear rates) its rate is not affected by the load put onto the spring. Brand/Model. Using a spring tester to test your range of springs with a variety of spring rubbers will prove to be good practice. Part Number # NA-MMFTDA. Make sure you get the coilovers corner balanced to use the full potential of your suspension. Remember that it’s only a rough guide for spring rates. Choosing a spring rate for a QA1 Pro Coil bolt-in coil-over system is easy! This cataloged coil-over kit for your vehicle has already gone through the R&D process and the spring length has been determined, so choosing a spring rate is simply a matter of matching the vehicle weight to our available spring rate charts. Eg Do not exceed 70/100. If another 500 lb. That alone improves handling significantly. This represents the percentage of the force from the spring that is translated into the force that contributes to the spring rate. Half of the manufacturers show their spring rates as kg/mm while others show them as lbs/in. With our coilovers, we do change the spring rates, but we only do it in small increments; like say 60 to 150 pounds per inch per axle, depending on whether you have a base model or a Z06, since the Z06’s already have slightly higher spring rates. MGB springs will work and might offer a better spring rate, there are about 6 different rate springs used on Bs throughout the produciton run from roadstes to GTs. For example, an ’03 Mustang Cobra with coilovers has 400-lb/in front springs and 650-lb/in rear springs. Then, you would have to see how much weight it would take to compress the spring one more inch. We're changing our phone hours to 9:00 AM to 3:00 PM Pacific Time (Monday-Friday, excluding holidays) so we have more time to process orders and get them out to you. I have an IRS in the rear, hence the short springs in the back. Hypercoils have a Life-Time Guarantee that coils remain within 2% of the original manufacturing tolerances. I see some 115lb/in springs, but think I may need much heavier. All you need to do is change a value in any of the boxes in the upper section and the boxes in the lower section will automatically display the calculated values when you click 'Calculate'. I prefer to mount the coil-over shock behind the axle centerline. Look at the available spring rates and their applications below. The bottom ring locks it down. Color code stripes 2. Our company prides itself on putting quality, performance and customer service above all else. 800-646-7618. 9 rate white) (std. These will work on the WRX with Tokico D-Spec struts if 02-03 rear tophats are used. Check out our offerings for dozens of applications HERE. Quote: regarding future coilovers In about 2 months there will be an adjustable dampening coilover available, it will feature 8k,10k,12k springs (yes 6 springs, which eliminates the street or sport versions and gives the user more options). 25in) to 70mm (2. Eibach makes the finest performance parts in the world. But here’s the good news: this is easily correctable. Get the latest information and read customer reviews on Coil Springs. 5", and 3" ID coilovers, made with extremely linear rate as well as the most amount of stroke in the industry. Many of our customers are looking to buy coilovers or lowering springs for their car. 2" of bump travel. So say you have a spring with a 200lb/in initial rate, and a 400lb/in max rate. It will retail for about $1,200. Moreover, coilover allow height adjustments and improve the rebound on the shock. Coil-Over Spring Rates: Front Springs: 350 - 400 lb/in: Solid Axle Rear Springs: 225 - 300 lb/in: IRS Rear Springs: 500 - 600 lb/in: MM2 Race Series Spring. In other words, you would have to have a machine that would compress the spring to the install height first. Afco's 360° Polished Extreme Chrome Coil Over Springs offer a wide range of rates and the market's best warranty. Coilover Spring Rate Chart - Selection and Installation. One is called Stacked springs because all you are doing is stacking two springs in series, with the same or different rates, to achieve a longer spring that is softer rate than either of the springs used. Our metric coilover springs come in various sizes with inner diameters ranging from 60mm (2. Our off-road Performance Series coil-over shocks will suspend your vehicle’s weight and provide our race-proven, performance damping technology to tame the toughest terrain. Spring type Type R (straightatbothends) Single Rate Spring Type S (barrel shape at both ends) Single Rate Spring Type T (barrel shape at both ends) Single. These figures are just off the top of my head, not really calculated by a computer model or anything like that. Regardless of whether a front coil-over conversion uses a true coil-over or a hybrid configuration, these packages seldom change the motion ratio of the shock and spring, so spring rates are usually an apples-to-apples comparison with OE-configuration springs and shocks. Even if you calculate based off that there's room for personal preference & riding style. Recommended spring rate to optimize ride quality. Coil Over Springs available from 5" to 14" Free Length - all rates available (pair) $150. 2012 Challenger R/T 6M mods: Barton Shifter, EBC Stage 5 Street/Track brake pads & rotors, Trinity T2, AEM Brute Force CAI, catch can, Flowmaster outlaw catback, 180 t-stat, Skip Shift Eliminator; CDV delete, Splash Guards, BC Racing Br coilovers (PB 1320 14. has the finest springs available today. Viking Performance specializes in high quality performance shock absorbers, high-travel coil springs, rod ends, spherical bearings and related suspension components. Types of Coilovers Coilover Sleeves  Coilover sleeves resemble lowering spring. QA1 Spring Rate ChartCoil-Over Mounting Guide (GIF). The equation for determining spring rate of springs in series is there. It is a percentage of the overall spring rate used in calculating the spring tension for the specified turns of preload. has the finest springs available today. skunk2 using linear type springs. Godspeed Project custom springs are made from SAE9254 steel wire and cold wound. A longer spring to keep the jeep sitting at the same height as a shorter spring means that the longer spring must have a lower spring rate (lbs per in). I have a chart of those back at the office and can post them to you if you want. Available in a variety of rates. Choosing a spring rate for a QA1 stock mount coil-over system (also called Pro Coils or direct-fit coil-overs) is easy! This cataloged coil-over kit for your vehicle has already gone through the R&D process and the spring length has been determined, so choosing a spring rate is simply a matter of matching the vehicle weight to our available spring rate charts below. 8 rate gold) Part #5440 Spring, shock (GTR) (4. #GWS-401-10500 (500 spring rate). BC Racing North America, one of the largest distributors of custom automotive aftermarket suspension products globally, offers more than 1100 unique suspension kits direct to consumer and through distribution and supply chains. Ive looked and cant seem to find them. Customizable - You may order your FA coilovers with custom spring rates and shock valving to suit. For example, if by doing this calculation you come up with 98. This keeps it from interfering with the four-link bars and lowers the top mounting location. Springs are not returnable. You will need to remove the coilovers from the car and use a 17mm socket and impact gun to remove the top mount. WARNING: This product can expose you to chemicals including nickel and urethane, which are known to the State of California to cause cancer and birth defects or other reproductive harm. Half of the manufacturers show their spring rates as kg/mm while others show them as lbs/in. Unlike some constant-rate lowering springs that are stiffer all the way through the range of compression, these will get progressively stiffer as the coil compresses during hard cornering. Application Charts for Drag Racing Brake Kits, adjustable Shocks, Coilovers, Springs, Gear Sets, Installation Kits and C-clip axles. The compression spring rate calculated will be of 10 pounds of force per inch. My aftermarket "sport springs" were about 180 lb/in. Request Catalog. The spring rate chart below is a general guideline. For reference, the spring rates are 220 pounds front, 250 pounds rear. Keep in mind that spring rate selection is a means to an end, not the end itself. Re: Which spring rate for front QA1 Coil over on '68 Part of this story is that there is very little to no benefit to a coil over on a Chevelle. For example, if you have a 10" free length spring, at 100 pounds per inch rate, it will handle 500 pounds of load. 75in), spring lengths from 127mm (5in) to 280mm (11in), and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs). RideTech has developed bolt-on coilover suspension systems that already includes correct rate springs. Reassemble and tighten with. So say you have a spring with a 200lb/in initial rate, and a 400lb/in max rate. Maximum Motorsports offers springs for Mustang coil-over applications in two diameters: 2. Most applications utilize the 450 lbs. SPRING RATE CHART The charts below are a general guideline for selecting spring rates. October 24, 2018. Remember that it's only a rough guide for spring rates. Advanced Racing Suspensions was founded in 1991 after owner, Corey Fillip, recognized the need for the improvement of racing suspensions. Suspension Spring Dual Rate Spring Stacker Chart Download ; The largest inventory in Racing products. NA Miata OEM Spring Rates I recall seeing a chart on the interweb showing what the spring rates were on the different year cars (90-97). MGB springs will work and might offer a better spring rate, there are about 6 different rate springs used on Bs throughout the produciton run from roadstes to GTs. Viking Performance specializes in high quality performance shock absorbers, high-travel coil springs, rod ends, spherical bearings and related suspension components. The bottom ring locks it down. Types of Coilovers Coilover Sleeves  Coilover sleeves resemble lowering spring. I ran 350lb spring rate before with a alumium headed sbc, Im currently running the 250lb because I switched to a LS2 which weights 80lb less on the front of the nose. This was recommended by MM as a good combination for nice handling, yet a good street ride. That alone improves handling significantly. To cure this, I pulled out the big guns and installed KW's Variant 3 Coil-Over. For starters, the coil spring and the strut are made to perfectly fit each other. Quit having to reset. Longer Lower Springs. JEGS High Performance Parts | Aftermarket Auto Parts. To get that height (with no Preload) with single springs gets met right at 200lb Front/250lb Rear. 9 rate white) (std. Choosing a spring rate for a QA1 Pro Coil bolt-in coil-over system is easy! This cataloged coil-over kit for your vehicle has already gone through the R&D process and the spring length has been determined, so choosing a spring rate is simply a matter of matching the vehicle weight to our available spring rate charts. Coilover Dual Rate Nuts. Quit having to reset. While running the same spring top and bottom will still give you a transition, we recommend (if possible) a 50 lb. Suspension, exhaust, brakes and cooling. 0" ID End Coil Over Spring Select Height and Rate Below SELECT HEIGHT 18" 16". These springs provide perfect solution for tuners looking to swap to a different spring rate setting due to driving situation and car setup. 7L Leveling Springs & Coilovers. 5 Rate (Black) Buggy Front : $2. QA1 Spring Rate ChartCoil-Over Mounting Guide (GIF). "With spring rates typically available in 50-pound increments, your target spring compression math may land on 172 lb-in when 150 lb-in and 200. The increase in front end lift is. I prefer to mount the coil-over shock behind the axle centerline. TEIN USA - distributes TEIN high performance suspension products made in Japan including ordermade coilovers, aftermarket suspension parts, gauges, motorsport equipment, overhaul/repair and racing support. “With spring rates typically available in 50-pound increments, your target spring compression math may land on 172 lb-in when 150 lb-in and 200. 75in), spring lengths from 127mm (5in) to 280mm (11in), and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs). Viking Performance specializes in high quality performance shock absorbers, high-travel coil springs, rod ends, spherical bearings and related suspension components. Choosing a spring rate for a QA1 stock mount coil-over system (also called Pro Coils or direct-fit coil-overs) is easy! This cataloged coil-over kit for your vehicle has already gone through the R&D process and the spring length has been determined, so choosing a spring rate is simply a matter of matching the vehicle weight to our available spring rate charts below. 10" Free Length Steel Coil-Over Spring with 150 lbs. 9 rate white) (std. Point ・Increasing 1 kg of spring rate of front and rear from MAX III enhances the stability during high speed driving furthermore. The spring perch has an adjustment ring on top that is adjusted with a special wrench provided in the kit. Baseline Spring Rate Selection Spring rate affects ride quality, ride height, stored energy, weight transfer and how effectively the front suspension handles downward movement after drag race launches. QA1 coil-over racing springs are guaranteed to remain within 2% of rate and length - forever! Springs are coil wound of chrome-silicon wire, the strongest spring steel known. Tags: Tech, Street Rod, Street. Now lets compress this Dual Spring system 8 inches. So you must add 1. Available in a variety of rates. Spring Rate Conversion Chart – Easily Convert KG/mm to LBS/in Roughly 1 KG/mm is equal to 55. 75in), spring lengths from 127mm (5in) to 280mm (11in), and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs). 7L Leveling Springs & Coilovers. I need advice on spring rates. Customizable - You may order your FA coilovers with custom spring rates and shock valving to suit. For starters, the coil spring and the strut are made to perfectly fit each other. The equation for determining spring rate of springs in series is there. Coilovers offer benefits other springs and shocks may not, including tight packaging for custom suspensions, easy ride height adjustment, and the ability to swap springs at a low cost. It may be that 1/2 of the top and bottom coil is seated causing a spring with 8 coils to have the distance of 7 free. Spring Rates Explained. Rates Standard Coil Springs 2. The in-house Viking engineering and product development team consistently push beyond the forefront of technological advancement and quality in suspension systems and components. Coilover Dual Rate Nuts. There is more development put into proper valving and matching spring rates. To cure this, I pulled out the big guns and installed KW's Variant 3 Coil-Over. #GWS-401-11250 (250 spring rate) #GWS-401-11300 (300 spring rate). Disclaimer:The stock availability shown below is not guaranteed. So the answer to your question is yes a lighter spring rate will yield a lower stance. Spring Rate. To get that height (with no Preload) with single springs gets met right at 200lb Front/250lb Rear. (2) Front coil over shocks, double adjustable (2) Front springs with choice of 250, 350, 450 or 550 spring rate; Spanner Wrench & Thrust Bearing Kit: Spanner wrench tool is used to adjust vehicle height while shock stays mounted. 330" loaded ht 10", load lbs 2404. F-O-A, First Over All Off Road Shock Technology 6747 Spencer Street, Suite 1 Las Vegas, NV 89119. #GWS-401-11250 (250 spring rate) #GWS-401-11300 (300 spring rate). 4% to the final calculated spring rate. Our company prides itself on putting quality, performance and customer service above all else. FRONT & REAR COILOVER SPRINGS A. • All New Redesign for 2017 F250 & F350 Models • New Variable Rate Coils for Improved Ride Quality • Radius Arm Brackets to Correct Geometry • Drop Pitman Arm Included ( 6”-8. 16" springs. Viking Performance specializes in high quality performance shock absorbers, high-travel coil springs, rod ends, spherical bearings and related suspension components. Below you will find a complete list of coilover springs available for immediate shipment. Check out our huge selection of coil springs for daily driving, racing, off road and more. JEGS High Performance Parts | Aftermarket Auto Parts. Advanced Racing Suspensions was founded in 1991 after owner, Corey Fillip, recognized the need for the improvement of racing suspensions. AFCO racing and performance parts began over 30 years ago with a simple need for better suspension. Spring rates may vary depending on applications, usage and personal preference. I have a chart of those back at the office and can post them to you if you want. 70), at least on an S13, is way lower than the front motion ratio (~0. Please be aware Our supply chain is suffering major pandemic-related disruptions. absorber, say a 2. Complete spring and shock absorber suspension kits are available in GAZ GHA and GAZ GOLD versions. if its the same coil size and length. "With spring rates typically available in 50-pound increments, your target spring compression math may land on 172 lb-in when 150 lb-in and 200. rear 90mm) Part #5439 Spring, shock (GTR) (3. Rear IRS coilovers have a wheel rate that’s 1⁄2 the spring rate. 2” of bump travel. Spring rates may vary depending on applications, usage and personal preference. Spring Rate & Pressure at Compressed Length This is really quite simple. Standard 2-1/2” ID spring with a wide variety of spring rates available. Brand/Model. range and a 100 lb. (2) Front springs with choice of 250, 350, 450 or 550 spring rate (2) Rear smooth body ( NOT COILOVER) shocks, double adjustable Rear Shock Specs: Upper Mount: Stud Lower Mount: Eye / Poly Compressed Height (IN. Types Of Front Coilover Springs Street/Strip Driving - LMR suggests a 12"-14" 150lb-200lb spring setup. For dual rate coilovers you will need to multiply the spring rate calculated above by two to get the required spring rates. Easy way to remember is 1 KG/mm = 56 LBS/in. 8” of travel times 40%, equals 1. Spring Chart. All of our coilover kits also include Helper springs. SPRING RATE CHART The charts below are a general guideline for selecting spring rates. Superb Springs – We use 2. Provides more deflection when compressed because the wire diameter is chosen for the best match with the number of coils. 75in), spring lengths from 127mm (5in) to 280mm (11in), and spring rates from 3kg (168lbs) all the way up to 34kg (1900lbs). The higher a spring rate, the stiffer. One is called Stacked springs because all you are doing is stacking two springs in series, with the same or different rates, to achieve a longer spring that is softer rate than either of the springs used. Double Adjustable Front Kit. Brand/Model. We take more than 50 years of race-winning experience and apply it to the core of our suspension springs – we provide the tightest tolerances, the use of superior materials and offer experienced craftsmanship. Using a protractor or similar measuring device, find the angle of the centerline of the spring or coil-over assembly from the horizontal of the control arm. Is best used for crusing, day to day use, and long distance driving. Half of the manufacturers show their spring rates as kg/mm while others show them as lbs/in. 98 Hyperco 1810B0150 Blue 2. If the spring is the same on both sides and fits the same either direction, then it is correct to install the spring with the closer coils “up”. The ast set I am looking at comes with 350 and 250, some people that I have talked to say that the rear should have. Just as I said, want to completely go with coilovers on rear, so I converted a set of belltech shocks for coilover, but the springs I have are a little too light, still need some air in the bags to get the ride height. Coil Spring Rate Calculator. 8 rate gold) Part #5440 Spring, shock (GTR) (4. With these examples it is brutally obvious how the. 25" diameter for MM Rear Coil-overs. (2) Front springs with choice of 250, 350, 450 or 550 spring rate (2) Rear smooth body ( NOT COILOVER) shocks, double adjustable Rear Shock Specs: Upper Mount: Stud Lower Mount: Eye / Poly Compressed Height (IN. A longer spring to keep the jeep sitting at the same height as a shorter spring means that the longer spring must have a lower spring rate (lbs per in). Please contact us for availability of all other products. For example, a linear rate spring rated at 500 lb. End-Coil Effect (percent): closed/ground compression springs have a typically lower spring rate in their initial deflection range. If the spring rates aren’t perfect the first time we’ll swap springs with you, and we don’t have a time limit or re-stocking fees like the other companies. QA1 coil-over racing springs are guaranteed to remain within 2% of rate and length - forever! Springs are coil wound of chrome-silicon wire, the strongest spring steel known. Superb Springs – We use 2. 5", and 3" ID coilovers, made with extremely linear rate as well as the most amount of stroke in the industry. In this case it is. “The coilover’s angle has a slight effect on the spring rate, but you usually won’t need to factor in a spring-rate change unless you have more than 20 degrees of shock angle,” Steve stated. Application Charts for Drag Racing Brake Kits, adjustable Shocks, Coilovers, Springs, Gear Sets, Installation Kits and C-clip axles. There is more development put into proper valving and matching spring rates. Tune your suspension to your liking with our metric coilover spring. Provides more deflection when compressed because the wire diameter is chosen for the best match with the number of coils. To order the kit with your desired spring rate. Spring Types All call-outs below each following illustrations (ex-cept torsion springs) refer to: 1. has the finest springs available today. Utilizing components such as; laser cut upper mounts, hand welded lower brackets, vehicle specific valving, are all assembled by hand to ensure quality and detail. Select your Spring Rate Single Adjustable QA1. 9K Spring Rate So for a 8 kg/mm spring you would have a 448lb spring, and a 500lb spring is equal to a 8. XX kg/mm x 56 = ( Spring rate in lbs/in ) Example 8kg/mm x 56= 448lb Spring For a standard spring rate (lbs / in) to metric spring rate (kg/mm) use the formula XXX lbs/in ÷ 56 = ( spring rate in KG/mm Example 500lb/in ÷ 56 = 8. RideTech has developed bolt-on coilover suspension systems that already includes correct rate springs. MM coil over kit on all 4. With progressive springs, preloading the spring does all the same things as linear springs, but it also increases the initial rate of the spring. “With spring rates typically available in 50-pound increments, your target spring compression math may land on 172 lb-in when 150 lb-in and 200. With our coilovers, we do change the spring rates, but we only do it in small increments; like say 60 to 150 pounds per inch per axle, depending on whether you have a base model or a Z06, since the Z06’s already have slightly higher spring rates. Not coils seated. While the spring rate is significantly higher than stock, the ride quality with the 275 Eibachs and Koni Sports is MUCH improved compared to the sport springs/Bilstein HD's that were on before. For starters, the coil spring and the strut are made to perfectly fit each other. For example, if you have a 10" free length spring, at 100 pounds per inch rate, it will handle 500 pounds of load. 5", and 3" ID coilovers, made with extremely linear rate as well as the most amount of stroke in the industry. Our metric coilover springs come in various sizes with inner diameters ranging from 60mm (2. If the spring is the same on both sides and fits the same either direction, then it is correct to install the spring with the closer coils “up”. I just pulled off one of my rear coilovers to find out the spring rate. This kit includes 550# springs. skunk2 using linear type springs. Now, there was the argument that the coil-over's relocated the spring and thus changed the motion ratio. In most cases, this will be somewhere between 75 and 90 degrees, and 90 degrees can be used for the angle. Viking Performance specializes in high quality performance shock absorbers, high-travel coil springs, rod ends, spherical bearings and related suspension components. Half of the manufacturers show their spring rates as kg/mm while others show them as lbs/in. By Speedway Tech Team. This calculator will only give approximations depending on the accuracy of your information. 82mph DA 4726 ft; 6/14/2019 at Spokane County Raceway). Select your Spring Rate Single Adjustable QA1. 9K Spring Rate So for a 8 kg/mm spring you would have a 448lb spring, and a 500lb spring is equal to a 8. The AFCO Dual Stage Coil-Over takes advantage of this principle to improve traction by providing dual spring rates. 4% to the final calculated spring rate. AFCO racing and performance parts began over 30 years ago with a simple need for better suspension. Ive looked and cant seem to find them. With our coilovers, we do change the spring rates, but we only do it in small increments; like say 60 to 150 pounds per inch per axle, depending on whether you have a base model or a Z06, since the Z06’s already have slightly higher spring rates. heaver spring for spring rates 400 lb. Spring rates are a bit on the softer side (7k/5k for the AST and Ohlins I believe, and maybe 8/6 for the Bilstein). It’s easy to forget what the conversion is so we put together a quick and easy chart to use for reference. Mon-Fri 8am-4pm PST. 8 - Constant. 25% or more weight savings over some brands in the market!. All AFCO coil-over springs are guaranteed to not lose more than 1% of their original free height for life. TEIN USA - distributes TEIN high performance suspension products made in Japan including ordermade coilovers, aftermarket suspension parts, gauges, motorsport equipment, overhaul/repair and racing support. heavier lower spring in the 100 to 300 lb. Now, there was the argument that the coil-over's relocated the spring and thus changed the motion ratio. Shock absorbers are available with or without coilover springs and ride height adjustable versions also feature in the range. On this Episode of Rock Rods Tech Jake Burkey the driver of the Riot Buggy Rock Bouncer gives you an in depth look of how to choose the correct spring rate a. Enter your suspension measurements in the white boxes below. The ast set I am looking at comes with 350 and 250, some people that I have talked to say that the rear should have. #GWS-401-10500 (500 spring rate). FRONT & REAR COILOVER SPRINGS A. range and a 100 lb. (Below) is a handy front spring selection chart for drag race cars equipped with MacPherson struts. These spring and coilover leveling kits don't just eliminate your Super Duty's rake and level your truck, they can also provide a huge bump in both on and off-road suspension performance. Coil Over Springs available from 5" to 14" Free Length - all rates available (pair) $150. That alone improves handling significantly. How to Calculate Spring Rate for Coilover. Every product we sell is the result of constant testing and development done with top. Is best used for crusing, day to day use, and long distance driving. Select your Spring Rate Single Adjustable QA1. If we find the calculated Spring Rate with a 2. I prefer to mount the coil-over shock behind the axle centerline. Use at your own discretion. These springs provide perfect solution for tuners looking to swap to a different spring rate setting due to driving situation and car setup. Brand/Model. Utilizing components such as; laser cut upper mounts, hand welded lower brackets, vehicle specific valving, are all assembled by hand to ensure quality and detail. Part #5436 Spring, shock (GTR) (2. Check out our huge selection of coil springs for daily driving, racing, off road and more. Baseline Spring Rate Selection Spring rate affects ride quality, ride height, stored energy, weight transfer and how effectively the front suspension handles downward movement after drag race launches.