1990 rear spring rates

[aafc]

Hi,

I want to change my rear spring in the ZR-1 to a softer rate . My
build sheet shows the front spring is code AA and the rear is NYR.
Question is were can i find the spring rates for say an L98,LT1, LT4 etc.
The car is used for drag racing 2 to 3 times a month, so i don't care
about road course time.

ZR1pete (fla) rpl his spring with a LT1 spring ,but he dose not know what the rate was. Were can i find the information that i'm looking for?

Thanks
John Becker
1990 black/white #2546
one of a few auto eq. zr-1's

[lbszr]

http://www.zr1netregistry.com/ZR1_suspension.htm

Hope this helps.

[Hog]

Wow, those1984 Z51 suspensions must hammer pretty good.

peace
Hog

[lbszr]

Wow, those1984 Z51 suspensions must hammer pretty good.

peace
Hog

I wonder if that one had an oversteer problem. It looks like they got away from the large high difference of the rear wheel rate over the front wheel rate later.

[aafc]

IBSZR

Thanks for the link to late model suspension chart. I was able to
convert the 92.2 n/m to lbs to get the spring rate. 92.2n/m x 8.850=815.97 lbs. So what i'm looking for is a rear spring that is 33.0 n/m
(292 lbs) or a 26.0 n/m (230 lbs I will check for c4 spring from a corvette
recycleing yard.

Thanks
John Becker
1990 white/black #2546
one of a few auto eq ZR-1's