whats the diff.....more with in
Thread Starter
Member
Joined: Mar 2000
Posts: 250
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From: Winnipeg,Manitoba,Canada
whats the diff.....more with in
whats the diff between a v6 spring, a Z28 and IROC spring for both front and back
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when the green flag drops the bull$hit stops
Curent: 350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast
Spring 01: 406, Comp 282 solid cam, 2400 stall converter, every thing else the same.
R.I.P #3
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when the green flag drops the bull$hit stops
Curent: 350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast
Spring 01: 406, Comp 282 solid cam, 2400 stall converter, every thing else the same.
R.I.P #3
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Joined: Jul 1999
Posts: 17,265
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Spring rate. If you measure the thickness of a V6 spring compared to an IROC spring you'll see the V6 spring is made from smaller diameter wire.
Spring rate is how much weight can be supported at a given height. A typical f-body has about 2000 pounds sitting on the front springs. Lets say an IROC spring is rated at 500 pounds per inch. The spring will compress 4 inches (from uninstalled height) when the weight of the vehicle is put on it. If a V6 spring is 400 pounds per inch it will compress 5 inches.
Thicker springs are stronger and can hold more weight (or pressure on the spring) in the same compressed area. This can help handling by keeping the car from diving under hard braking or cornering.
Too heavy a spring rate can cause a rough ride since the springs won't want to compress and too light a spring rate can cause the car to handle irradically from too much suspension movement.
There is very little difference (if any) between the rear springs since the rear weight of all the f-bodies is close to the same. IROC springs will have a bit more spring rate but not much more than the others.
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Follow my racing progress on Stephen's racing page
and check out the race car
87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season
Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley
[This message has been edited by Stephen 87 IROC (edited April 09, 2001).]
Spring rate is how much weight can be supported at a given height. A typical f-body has about 2000 pounds sitting on the front springs. Lets say an IROC spring is rated at 500 pounds per inch. The spring will compress 4 inches (from uninstalled height) when the weight of the vehicle is put on it. If a V6 spring is 400 pounds per inch it will compress 5 inches.
Thicker springs are stronger and can hold more weight (or pressure on the spring) in the same compressed area. This can help handling by keeping the car from diving under hard braking or cornering.
Too heavy a spring rate can cause a rough ride since the springs won't want to compress and too light a spring rate can cause the car to handle irradically from too much suspension movement.
There is very little difference (if any) between the rear springs since the rear weight of all the f-bodies is close to the same. IROC springs will have a bit more spring rate but not much more than the others.
------------------
Follow my racing progress on Stephen's racing page
and check out the race car
87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season
Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662
Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association
87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley
[This message has been edited by Stephen 87 IROC (edited April 09, 2001).]