1990 rear spring rates - ZR-1 Net Registry Forums

aafc · 04-14-2011

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 · 04-14-2011

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

Hope this helps.

Hog · 04-15-2011

Wow, those1984 Z51 suspensions must hammer pretty good.

peace
Hog

lbszr · 04-15-2011

Quote:

Originally Posted by Hog

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 · 04-15-2011

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

04-14-2011	#1
aafc Join Date: Feb 2010 Location: Ochlocknee, GA Posts: 434	1990 rear spring rates 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

04-15-2011	#3
Hog Join Date: Jul 2010 Location: Woodstock, Ontario, Canada Posts: 1,275	Re: 1990 rear spring rates Wow, those1984 Z51 suspensions must hammer pretty good. peace Hog

04-15-2011	#5
aafc Join Date: Feb 2010 Location: Ochlocknee, GA Posts: 434	Re: 1990 rear spring rates 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

04-14-2011	#2
lbszr Join Date: Nov 2006 Location: dayton,ohio Posts: 425	Re: 1990 rear spring rates http://www.zr1netregistry.com/ZR1_suspension.htm Hope this helps. __________________ [FONT=Comic Sans MS][COLOR=red]"I wanna go fast!!"[/COLOR][/FONT] [FONT=Comic Sans MS][COLOR=#ff0000]-- Ricky Bobby[/COLOR][/FONT]