021less

iTrader: (28)

My car is a 1le car with double adjustable konis. I have them up for sale because my car see's more 1/4 time than curves. I have tried adjusting them but they are already as soft as they get both ways. The car transfers no weight off the line and absolutely will not hook on the spray running et streets (wrinkle wall). My question is before i sell these things (which i don't really want to but money is tight so if i want a drag set up they have to go) is there anything i can do with my current suspension to make it hook? Springs or anything? any help would be greatly appreciated.

Sam Strano

iTrader: (41)

I just got a note from a man who pulled a 1.65 on Koni's, with a big front bar (the solid one no less), my hollow rear and set of BMR springs (which are stiffer than my rear springs are). I've got customers as low as 1.50 that I know of on Koni's, and heard rumors of cars quicker than that (but can't tell you who exactly).

I don't think the shocks are the issue.

021less

iTrader: (28)

so should i start with the springs before i decide to get rid of the koni's? I'm not sure what the spring rates are on the 1le cars.

Sam Strano

iTrader: (41)

'01-02 cars aren't true 1LE's like GM built. You have 35/21 bars vs. the 32/19's the majority of 1LE's came with (only 1993's had the 32/21 combo because of spring changes).

I think you have standard springs, not actual 1LE as I think the were discontinued by then. You might even have SLP springs, but I doubt it.

021less

iTrader: (28)

yeah i know slp did the 1le upgrade in 01-02, and everything on the suspension is the way it came new so whatever slp put on it is what its got. I just really hate to get rid of parts that i might kick myself later for if thats not the problem. I know an adj torque arm, lca's will help, but this thing is stiff as a board off the line. I turned a 1.8 60' ft off the line on a 100 shot out of the hole leaving the line around 3000-3500 and not a clutch dump either. I'm killing myself in the 60'.

z28bryan

iTrader: (7)

What do you have for your current suspension? You didn't mention that. LCA's? Relo's? Torque arm?

021less

iTrader: (28)

everything is stock. Broke 2 stock tq arms already cause of the 12 bolt's crappy bolting....

rcracer4430

iTrader: (1)

If you decide to sell the koni's let me know.

u118224

iTrader: (3)

The SLP 1LE suspension has specific springs. I'm going from memory, but I think the fronts are 360 lb linear and the rears are 150-170 lb progressive.

coolformula

iTrader: (21)

If your breaking TQ arms first I would get one of the TQ arms that mount to something else..and that will be good for drag racing.

Wheel hop?

2nd step I would look into some LCA's.

021less

iTrader: (28)

the reason the tq arms break is because how they bolt to a 12 bolt. it don't have 2 bolts that run all the way through, it has 2 on top and 2 on the bottom. The front one has backed out and when you launch it it rips the metal around the back one and bends the bottom. But i got that fixed now so i shouldn't break anymore.

Sam Strano

iTrader: (41)

GM 1LE in 1993 were 360 front, 115 rear (stock Z28).
GM 1LE in 1994 through 1999 were 360 front, 130-180 rear.

I don't believe SLP used the GM 1LE springs on their own "1LE" cars in '01-02. Documentation is at best iffy, and a perfect example of this is how those cars did not use the same swaybars as GM build 1LE's did.

tillery

iTrader: (4)

Byunspeed has a dude that makes hardware to fix that problem, Ive been running Moser rear for 4-5 yrs now with a stout H/C package lots of suspension work with different shocks and I never had a problem with broken tq arms or bolts backing out. I made my own back then out of some 6061 aluminum alloy. The problem isnt the 4 bolts. Its not using the correct hardware. And being on a stock tq arm. its not worth bracing it to make stronger. just get a aftermaket one.

u118224

iTrader: (3)

Is the SLP 1LE rear 21mm bar solid? I doubt it's worth the money for a summer weekend fun car, but just for curiosity's sake, would your hollow rear bar make any noticeable difference?

u118224

iTrader: (3)

This is where I got my info, it lists SLP 1LE rear spring rates as 130-170 progressive.

http://www.frontiernet.net/~face440/01suspension.htm

Sam Strano

iTrader: (41)

Not exactly an official document... 1LE springs were discontinued, I believe before 2002 by GM. Maybe SLP had a bunch sitting around and used them, maybe not. Perfect example of inaccuracies on that page: deCarbone isn't how it's spelled. It's deCarbon, I'd bet officially GM documents would show that since GM's Delphi division owned deCarbon.

Sam Strano

iTrader: (41)

Honestly? No, not really. A few pounds less unsprung weight, but similar stiffness.

cablebandit

iTrader: (37)

i have koni DAs all the way around...new lt1 springs on my 3900# 2000 ta...1.44 60' so far andmine is really front heavy

021less

iTrader: (28)

oh and you forgot about how much more power you got than me too i don't think i'm going to do anything with it right now anyway. Just keep it the way it is.