turbotim23

Hi I lowered my 93 corvette by cutting off the rubber off spring center and ends and using the plastic wedges. I sanded the spring wedges to bring it down a little more yet. I wanted it low but to be able to raise it if I wanted so I set it up like the c5 corvettes with a bolt in the spring ends that will able me to raise it maybe 1"- 1 1/2". After getting back on the road and driving it awhile, it is still too high and that is with spring directly on lower control arm. I didn't even put in the raising bolt into the spring ends yet. What I'm thinking of doing is cutting control arm where spring sits and rewelding and building it slightly lower. This will allow me to drop it as low as I want it and the bolt in spring ends will allow me to raise it where ever I want it. what do you think/ Thanks Tim

merlot566jka

yikes. I wouldnt do that. I have a 96, and ive cut the wedges and removed the pads on the ends of the springs, and I am about to rub the inner skirt. Maybe try a softer spring?

or coil overs.

IMO, cutting and welding the a-arms is risky business! Coil overs would be much more safe.

Aardwolf

Corvette challenge cars:

Black89Z51

VB&P makes their springs with a bolt that's adjustable just like you are talking about. Plus, their springs aren't near as bowed as the factory spring. The VB&P kit also allows to adjust corner weights.

Crepitus

I have seen an other member do that on this board. I like the idea it opens up a lot of possibility's like adjustable ride hight, ect. I would like to know what alloy we are working with as well as any existing heat treat (doubtful)

Crepitus

Hi guys! Aard and BlkZ posted while I was typing. Challange car is a very interesting photo. obviously a weldable alloy. One of the outfits that ran challange cars should have the answers. DRM, Van Steel & ?

OT:Z thanks for the fuel sys pics Thats how I am gonna do mine.

PLRX

-Looks like you have done all possible lowering it is to be done within the OEM front monospring.

Would be cheaper if you buy a monospring designed to execute all your goals.

Call Van Steel and speak to Paul. He will be able to help you and may recommend you the extreme adjustable front monospring.

383vett

If you are going through all that to lower the car, I would just swap out the spring for a set of coilovers.

littlesk8cracker

i swapped out the spring on my 94 convert with a vbandp sport spring. i had it sent with the lowering wedges. the car is slammed, i can barely fit my finger between the tire and fender. this is about as low as anyone would want to go. cars very comfortable with the stiffer springs, shocks, poly bushings, lowering

turbotim23

Well my car is lowered but I couldn't call it slammed now nor is it close to rubbing the inner fender skirt yet either. I tried it this way as I didn't have to rebuild the upper shock mounts or buy coilovers. I'm not planning on riding around all the time with it slammed. I thought it might be cool to drop it down for car shows or autocross and ride high for less bottoming out around town. Thanks Aarwolf that photo shows it could be done . Plus then I could use the c5 lowering bolt,they use a plastic **** end on the lower end of bolt. Right now I just have a steel bolt. I did line the lower control arm pocket with plastic, but I'm worried the bolt will wear through the plastic and harm lower control arm.

5abivt

Are you driving the car after setting it down? It could be the shock keeping the height high.

Do you have the base suspension? The softer spring also has a much more curved profile. I swapped to the stiffest spring gm made in the front and side by side the difference was dramatic. the centre of the stiff spring sat very low compared to the base spring when set side by side on the floor. i actually had to raise the car in the front and rear (swapped rear spring as well).

This is raised up a bit because doing top speed blasts the skirt was contacting pavement. not fun at 185 mph

turbotim23

Yes I drove it awhile to see if it would come down any and the first thing I did when it was too high was take the shocks out to see if they were holding it up any. They were some but not a lot. I do have the base springs though,I'll look into getting some stiffer springs. I really didn't want to get too stiff a spring, I've drove cars with really stiff racing type springs before. It wasn't my idea of fun driving with them on the street.

leesvet

I can tell you from experience that you're looking at 2 possibilities...

the hard road that is expensive and even dangerous,

or

the simple route that involves swapping springs like 5abivt is talking about.
This is because the more arc the monospring has the higher the ride height will be. The stiffer the spring the flatter the spring and lower the ride height.
Easy and safe. You want stiff at high speeds and being factory components there is little question of reliability. I dropped mine a good 1.5" rear and about 1" front where it now sits level.

And I have enjoyed the sound of the air-dam grinding the pavement at high speed as the car squats and absorbs the 1" of ground clearance that it has at park......thats the quick way to adjust your new Big-Mouth scoop.......

leesvet

Gawd, I love that color !

Kubs

This is my solution to get the car lower:

http://forums.corvetteforum.com/c4-t...he-ground.html







This picture is with no engine, transmission, or radiator. Basically very little weight on the nose and I can still get it this low. I can Also raise it back to factory height.

turbotim23

You basicly did the same as me but left the spring below the control arm. mmm interesting I bet you didn't have to bond a t nut in the spring end either, that's much easier. I worry about the T nut cracking out when I adjust it sometime down the road. When I did mine I was sure it was going to drop like a rock almost too low. I thought I'd be riding around with all the weight on the adjusting bolt end alone, Didn't happen. I think I'll look for a stiffer spring if that doesn't drop it enough I'll try your way.

Kubs

I didnt bond anything. I used delrin spring mounts from Banski Motorsports. They are made for the rear of a C4 but I just drilled a hole in the spring and a hole in the control arm and put the spring kit on either side. Very simple.

http://banskimotorsports.com/Pin_Top...nt_description

1991Z07

My Z07 with the lowering kit looks JUST like this...

Of course...mine is white and looks better



But that blue is very nice as well.

You "can" do whatever you want...it's YOUR car. But (frankly) I would never go the route of cutting the LCA and welding the pad lower OR going the route Kubs did...

Quite honestly I'd never want the spring (or the bolts) below the lower control arm. A small off-track excursion in the wrong place and you are well & truly screwed.

My new track car is getting DRM FX3 coil-overs installed. Infinite adjustment, and I can get it as low as I want.

IAFF alumni

I like that stance.

Kubs

The spring bolt is very close to, or inside the wheel barrel (depending on wheel width) and moves with the wheel over bumps and such. If something was going to take out the bolt on a off course excursion it would most likely cause damage whether the spring was above or below the arm.