Cut rear V6 springs for super light cars?
03-19-2005, 02:40 AM
#1
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Cut rear V6 springs for super light cars? With the reguarl V6 springs I've cut 1.40 60's stock internals NA with at least 2 feet of air and hang time of about 50 feet...
I have a strange 12 bolt with 4.10's, spohn drag bar, QA1's and a 28x10.5 ET Drag...
With that setup I had 3" of space between the top of the tire and the bottom of the center of the fender lip.. and still the car 60'd hard and got good air.. I attribute it mostly to a hard hiting converter, big tire and light car..
But the car looked really weird with so much space in between the tire and fender. For comparison, pro stock john has the same tires as I with cut V8 springs and he has 1/4" gap between the top of the tire and the center of the fender... but his car also does NOT hook (yea I said it johnny!)
So I cut out 1 coil of the V6 springs.. and now I'm at 2" gap...
Is this ok?
I cut the V6 springs instead of V8 springs because removing a coil from the V6 springs should make it stiffer. I wasn't sure if removing a coil from the V8 springs would be to stiff.
So what is the solution for the really light cars that run stock style spring setups.. How much gap should we be having?
I have a strange 12 bolt with 4.10's, spohn drag bar, QA1's and a 28x10.5 ET Drag...
With that setup I had 3" of space between the top of the tire and the bottom of the center of the fender lip.. and still the car 60'd hard and got good air.. I attribute it mostly to a hard hiting converter, big tire and light car..
But the car looked really weird with so much space in between the tire and fender. For comparison, pro stock john has the same tires as I with cut V8 springs and he has 1/4" gap between the top of the tire and the center of the fender... but his car also does NOT hook (yea I said it johnny!)
So I cut out 1 coil of the V6 springs.. and now I'm at 2" gap...
Is this ok?
I cut the V6 springs instead of V8 springs because removing a coil from the V6 springs should make it stiffer. I wasn't sure if removing a coil from the V8 springs would be to stiff.
So what is the solution for the really light cars that run stock style spring setups.. How much gap should we be having?
Last edited by Magnus; 03-19-2005 at 02:47 AM.
03-19-2005, 10:53 AM
#3
You could try lowering springs I guess, I have a set of eibach rear lowereng springs that were a little too low in this car and you can try them. In the sig are the lowering springs with the rubber isolators still in and most of the stuff out the back of the car (antenna, speakers, monsoon amp plastic panels etc and no gas).
You can have them and try them if you want but they may be too soft, easy enough to change..
You can have them and try them if you want but they may be too soft, easy enough to change..
03-19-2005, 11:18 AM
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I am not concerned about looks, only 60' and traction...
What is ideal for the rear? Low or High, stiff spring or soft spring?
I am not running spring cups, I am running a thin piece of radiator hose around the top ring of the spring.
I could cut another coil out of the V6 springs.. I won't have much spring left.
What is ideal for the rear? Low or High, stiff spring or soft spring?
I am not running spring cups, I am running a thin piece of radiator hose around the top ring of the spring.
I could cut another coil out of the V6 springs.. I won't have much spring left.
03-19-2005, 11:37 AM
#5
I agree on the looks, I could care less, thats why my car will be 4wd soon 
Ideal height would be dictated more by your front torque arm mount point I would think, the more you lower the car the IC changes since the front of the torque arm mount stays the same. Lot of guys blame the LCA angle but on these cars I dont think that makes that much of a difference as changing the angle of the torque arm when you lower it.
I would think a stiff spring would be better to keep the rear from squating too much plus the stiffer spring would use the weight transfer to push down on the tire instead of compressing a spring but I'm sure too stiff isnt good either since it will try to unload too quick after the initial launch
Since the front mount of your torque arm is fixed I would think lowering the car too much would hurt anti-squat (or percentage of rise, whichever term is used nowadays), I'm sure if I am wrong someone will say so. I'm am not as well versed on torque arm suspensions as some
Ideal height would be dictated more by your front torque arm mount point I would think, the more you lower the car the IC changes since the front of the torque arm mount stays the same. Lot of guys blame the LCA angle but on these cars I dont think that makes that much of a difference as changing the angle of the torque arm when you lower it.
I would think a stiff spring would be better to keep the rear from squating too much plus the stiffer spring would use the weight transfer to push down on the tire instead of compressing a spring but I'm sure too stiff isnt good either since it will try to unload too quick after the initial launch
Since the front mount of your torque arm is fixed I would think lowering the car too much would hurt anti-squat (or percentage of rise, whichever term is used nowadays), I'm sure if I am wrong someone will say so. I'm am not as well versed on torque arm suspensions as some
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03-19-2005, 10:55 PM
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Haha Keith. Dropping the car in the back a bit won't hurt it, just a matter of playing with it. (John did 1.59 spinning cuz the fronts were on full hard so I could see how the boost was).
03-20-2005, 04:12 PM
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Originally Posted by MADMAN
Magnus call me monday I have what you need hanging on my wall.
