HAL_396
Member
Posts: 2707
Loc: Austin, TX
Reg: 11-16-06
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05-09-10 08:03 PM - Post#1912463
Getting ready to insatll the rear springs on my Caprice drag car. What springs would be my beat choice? The one on the left is a stock Caprice spring, the one on the right is a stock Impala sports coup spring.
Or maybe one spring on one side and a different spring on the other side? I remebering someone saying a air bag will helps on one side. Maybe a stiffer spring instead of a bag..
1955 Chevy Custom
1966 Biscayne
1966 Caprice Drag Car Inwork
1966 Caprice parts car
2004 Silverado
2007 Impala LS
2009 G5 |
Edited by HAL_396 on 05-09-10 08:25 PM. Reason for edit: No reason given.
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Pete66
Senior Member
Posts: 563
Age: 60
Loc: Stockholm, Sweden
Reg: 11-01-04
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05-10-10 03:17 AM - Post#1912545
In response to HAL_396
HAL,
Found someting for you here:
http://www.baselinesuspensions.com/info/Launching_...
Don't forget we like to have the car running strait and brake strait also, not just taking off in a proper way.
So, is different hardness in the suspension something to recommend?
Sounds scary....
Personaly i would use strong springs, and maybe adjustable shocks, if i was doing some serious racing. And if usage of bags, have'em on both sides, then you have better adjustment capabilities.
/Pete
1966 Chevrolet Caprice Custom Coupe/427/TH400- Manual- Ratchet- Transbrake
Pete's Chevy page
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66cayne
Frequent Contributor
Posts: 1802
Reg: 08-06-08
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05-10-10 06:43 AM - Post#1912610
In response to HAL_396
Wow, that looks like a big difference in diameter and length. On my bbc drag car I ran cargo springs and an airbag in the right rear. About 10-20 psi in the bag, depending on track conditions. And 10-15 psi in the MT 10.5" slicks, again depending on track conditions. The problem with running very low air in the slicks is the car will want to 'wander' on the top end. Not a very reassuring feeling at 120 mph. You might want to try the big Caprice spring in the right rear and the Impala spring on the driver side. It is a starting point.
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 Carguy1965
"4th Year" Silver Supporting Member
Posts: 2352
Loc: Social Circle Ga
Reg: 02-25-08
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05-10-10 07:52 AM - Post#1912625
In response to 66cayne
Call me crazy, but the one on the left looks like a front spring, and the one on the right looks like a rear?? Never saw a rear spring that didnt have the smaller loop on the bottom end..
2007 Z06
DD 2007 Avalanche
1965 BB Impala SS ( Now Gone to a New Home )
1931 Reo Royale Project Coupe
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 Johnny468
"5th Year" Silver Supporting Member
Posts: 565
Loc: Richmond, Va.
Reg: 10-24-08
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05-10-10 09:45 AM - Post#1912678
In response to Carguy1965
I'm with Carguy.....look at the wire diameter and number of coils. The one on the left looks like a front spring.
Johnny
1965 Impala SS
505/4-speed/4.30
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HAL_396
Member
Posts: 2707
Loc: Austin, TX
Reg: 11-16-06
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05-10-10 10:41 AM - Post#1912707
In response to Johnny468
That would explain a lot of things. There was some sorta home made bracket holding them on the control arms.
Pete66, Thanks for the link. Lots of good info there.
1955 Chevy Custom
1966 Biscayne
1966 Caprice Drag Car Inwork
1966 Caprice parts car
2004 Silverado
2007 Impala LS
2009 G5 |
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leon phelps
Valued Contributor
Posts: 3018
Loc: Croydon Manor, PA
Reg: 06-04-05
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05-10-10 10:56 AM - Post#1912717
In response to HAL_396
If I remember correctly, the front and rear springs are no where near this close to the same height. The difference in diameter is 1" (I just measured since I am frame off). If I remember correctly, the rear one had several tightly wound coils at one end also.
I am guessing someone made a coil for their application from something they had lying around.
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Pete66
Senior Member
Posts: 563
Age: 60
Loc: Stockholm, Sweden
Reg: 11-01-04
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05-11-10 04:25 AM - Post#1913139
In response to leon phelps
HAL,
Was those two different springs installed on your car ??!! 
I have longer and stiffer springs in the rear and in front. In the rear i need to have 3" extensions for the shocks, but i will change to longer better shocks later.
I can even from a stand still, accelerate with full trottle in a sharp curvy road with no problems. So the springs and shocks must work okay then i suppose.
The only problem with my car was that all rubber in front suspension was totaly crap, so when i let go of the gas-pedal the car "changed lane". 
/Pete
1966 Chevrolet Caprice Custom Coupe/427/TH400- Manual- Ratchet- Transbrake
Pete's Chevy page
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HAL_396
Member
Posts: 2707
Loc: Austin, TX
Reg: 11-16-06
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05-11-10 07:24 AM - Post#1913218
In response to Pete66
No Pete the springs were on two different cars. I'm thinking of cutting a couple coils off the bigger spring and putting it in the right rear. I'd like the car to sit level but have a stiffer Rt. rear spring for launching, (Or at least thats what I have been reading).
1955 Chevy Custom
1966 Biscayne
1966 Caprice Drag Car Inwork
1966 Caprice parts car
2004 Silverado
2007 Impala LS
2009 G5 |
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ImpBiscuit
Senior Member
Posts: 1403
Loc: Louisiana
Reg: 02-08-03
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06-15-10 08:04 AM - Post#1930523
In response to HAL_396
I like to run the stock springs with air bags.I run a line for each air bag. At the track the right is the only one with air. I also installed a set of SSM lift bars on my car. I think they are shut down now.
John
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