C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Front spring with the code FJY ?

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Old Feb 26, 2011 | 06:49 PM
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Originally Posted by pmihaltian
Was you car built late in the model year? If so, maybe your late MY '85 Vette has a 1986 spring in it ??????
It is a production 12/84
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Old Feb 26, 2011 | 06:56 PM
  #22  
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Originally Posted by vettedan
Your right on! Was the Enkei wheels an option that year?
To my knowledge, there were no optional wheels in 1986 & 1987. The only option was '86 convertibles & Z51 cars had 9 1/2" wheels vs: 8 1/2" for standard cars. In '87 Z51 & Z52 cars had 9 1/2" wheels.
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Old Feb 26, 2011 | 07:02 PM
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Here's my LS1 C4:

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Old Feb 26, 2011 | 07:07 PM
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Originally Posted by vettedan
Here's my LS1 C4:
WOW ! Very , brother....
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Old Feb 26, 2011 | 07:07 PM
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Originally Posted by vettedan
Your right on! Was the Enkei wheels an option that year?
IIRC, Enkei's came on the Z51 cars but I don't think they were a specific wheel option by themselves. My 87 had them on the car when I bought it so maybe they came on Z52 cars too.

Western Wheel was another supplier and from what I remember, the big difference was the amount of material on the inside of the wheel where the center met the rim. Enkei's had less material on that inside edge but were stronger and lighter.

I've been following another thread in the autocross section about springs for autocross. Seems the consensus in that thread is to go with soft springs (FE1) and a big front swaybar and HD shocks. Right now I have the Bilstein Z51-specific shocks and the Z52 30mm solid front bar/poly bushings and still get body roll. Most comments say to stay with a really small (stock) rear bar or even disconnect it.

Right now I'm looking at a ADDCO 32mm front bar. Addco dropped the large tubular front bar so it's hard to find really big bars for the early 84-87 cars. Vette Brakes has the ADDCO 32mm bar and poly bushings for $119 through Monday.
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Old Feb 26, 2011 | 07:15 PM
  #26  
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Originally Posted by c4cruiser
IIRC, Enkei's came on the Z51 cars but I don't think they were a specific wheel option by themselves. My 87 had them on the car when I bought it so maybe they came on Z52 cars too.

Western Wheel was another supplier and from what I remember, the big difference was the amount of material on the inside of the wheel where the center met the rim. Enkei's had less material on that inside edge but were stronger and lighter.

I've been following another thread in the autocross section about springs for autocross. Seems the consensus in that thread is to go with soft springs (FE1) and a big front swaybar and HD shocks. Right now I have the Bilstein Z51-specific shocks and the Z52 30mm solid front bar/poly bushings and still get body roll. Most comments say to stay with a really small (stock) rear bar or even disconnect it.

Right now I'm looking at a ADDCO 32mm front bar. Addco dropped the large tubular front bar so it's hard to find really big bars for the early 84-87 cars. Vette Brakes has the ADDCO 32mm bar and poly bushings for $119 through Monday.
Thanks George,
We have to get together and talk about this. I running out of time and I have to get this beast finished for this years racing. The Enkei's are a nice quality wheel. very light.

I just got this link from Annon:

http://vettenet.org/susp_chart.html
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Old Feb 26, 2011 | 07:18 PM
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Originally Posted by pmihaltian
WOW ! Very , brother....
Thanks,
I will have the engine plates available soon.
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Old Feb 26, 2011 | 07:21 PM
  #28  
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Originally Posted by vettedan
Thanks George,
We have to get together and talk about this. I running out of time and I have to get this beast finished for this years racing. The Enkei's are a nice quality wheel. very light.

I just got this link from Annon:

http://vettenet.org/susp_chart.html
You better well be ready!! Was hoping you could make it out last year. 7 events this year!
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Old Feb 26, 2011 | 07:26 PM
  #29  
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Originally Posted by vettedan
Thanks George,
We have to get together and talk about this. I running out of time and I have to get this beast finished for this years racing. The Enkei's are a nice quality wheel. very light.

I just got this link from Annon:

http://vettenet.org/susp_chart.html
Yup, that's the suspension chart I have also. You will notice that from 88 MY onward, they increased the front spring rate significantly. Accordingly, if C4Cruiser has a pre-88 front spring, this may be contributing to his race track roll problem.

FWIW
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