Need some Spring advice... |
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Need some Spring advice... |
D1A3 |
Feb 29 2012, 04:24 PM
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#21
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Gruppe Neun Vierzehn Südosten Group: Members Posts: 362 Joined: 3-June 04 From: Atlanta, GA Member No.: 2,152 Region Association: South East States |
I have a stock '76 2.0L car and have been pretty successful in AutoX at the local PCA and SCCA level. For PCA, I run in the PA class.
I currently have red Koni's (age unknown) with 90 pound springs on the car. I also have front and rear factory sway bars. The shock/spring combo seem to work well enough for street and reasonably aggressive driving My problem is that my rear end seems to come up and dance all over the place when I'm AutoX'ing and I'm trying to get it more planted for the upcoming season. I've had folks recommend I upgrade my rear springs to everything from 140 up to 180 lbs. Any thoughts on what springs I should go with? I'm not looking to replace the shocks and springs or do any other suspension changes right now as I can drive the car very well in AutoX, but want to try and pickup some handling and hopefully a little time. Below is a pic of my car from behind to give you an idea of what I'm trying to correct. Thoughts? I appreciate any and all comments! :-) |
J P Stein |
Mar 1 2012, 08:11 AM
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#22
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Take heart, many drivers never reach the limitations of the stock (optional?) F & R sway bar set-up.
I'm not familiar with the class you're running (PA)...PCA is odd. If it is showroom stock, you're stuck. The cure for lifting the inside rear is well known but requires some changes that may put you out of your class. The problem is the rear AR bar. You could simply disconnect it but I think that would cause the front end to push.....not good for AX....tho you may want to try that. The cure for that is 140lb rear springs with no rear bar......a common point in the 914 AX modification process. Whatever tires you are running have more grip that what was available 40 years ago. Adding R spec tires (more grip) will exacerbate the lifting. When the inside rear lifts all forward thrust ceases and upsets the car. A clutch type LSD will also cure this but it gives another handful of challenges while lightening your wallet. (IMG:style_emoticons/default/biggrin.gif) |
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