Ive tried looking around the forum and on the internet for what im experiencing and thus to no avail...so im wondering if you guys can shed some light on it!

Basically this only happens under mild to full acceleration.

When the gas pedal is applied. The car does not uniformly shift its weight to the rear...instead the front driver side will lift as the passenger rear dips resulting in the rear passenger tire slipping and loosing traction..thus im not going nowhere except for making alot of noise and smoke! :nanawrench:

So im trying to figure out whats causing this? the suspension? perhaps the tire itself just sucks? Someone even suggested that i have a racing rear axle on there which i highly doubt (buffalo axle numbers stamped on the front passenger side housing) My friend also suggested putting a stiffer spring on the side thats dipping to prevent it. I have Air suspension fitted in place of the OEM air shocks so im completely lost :dontknow:

What you have that's most likely causing this is a non-posi rear end and you most likely have your airbags plumbed to one fill line and putting equal amounts of air pressure to both bags. You can try changing to independent fill line (kit should be available at a local parts store) and running a higher air pressure in the passenger side...and you really need to think about installing a posi unit in the rearend.

Here is an article about chassis tuning read it's about Camaros but the basics are the same.
http://www.nastyz28.com/pthandle.html

Ah, a great chance to talk about torque reactions!

Try thinking about it this way: You know that the engine is doing its best to turn the driveshaft, right? The diveshaft is hooked to the read end, which is is taking all the force the driveshaft can give it and what it really would like to do is to just spin, like a giant propeller. But, it can't, because it is tied to the vehicle. As a result, it tries to rotate, but the weight of the car stops it - but not before it lifts the drivers side of the car.

There's one more action going on as well. The rear end is causing the axles to turn and the axles are tied to the tires. The tires would love to just spin in response, but traction keeps them from spinning freely. So, since traction pretty much stops the tires from spinning, the rear end tries to spin instead and the nose of the rear end rises, lifting the front of the body with it.

Now, combine the actions and the car seems to tilt because the left front comes up and the right rear goes down in response. No matter what you do, the torque reaction will always be there. A posi will help, but even then, under acceleration, the right rear tire always has more load on it that the left. Stiffening the right rear spring or adding an air lift bag will help balance the chassis left to right on acceleration, but the right tire still sees the most load.

You can get away with a lot, even if the car lifts one wheel off the ground. but when it lifts 'em both, you better have your suspension sorted out because with no front wheels on the ground, it really helps if the car goes straight!

Wow Kerno, Learn something new everyday!!

Ok first things first is that i'll change the air bag plumbing to independent fill lines...right now they are at 65psi so perhaps putting 20psi more on the right and keeping the left the same may work!

If it doesn't I'll prob move onto the coil springs...

I'll tinker around with it and keep you guys posted:smileyb:

Is this the same elky that had rust and body mount issues awhile back? I seem to remember you saying you were selling it becasuse of that?

Is this the same elky that had rust and body mount issues awhile back? I seem to remember you saying you were selling it becasuse of that?
I would say YES, since I also remember something about it too. Michael

I would say YES, since I also remember something about it too. Michael

Why yes!! i did not sell it in the end...the rust has all but been banished and now i have this beauty! :yell:

http://img203.imageshack.us/img203/7813/hpim2519.jpg (http://img203.imageshack.us/i/hpim2519.jpg/)



[url=http://img689.imageshack.us/i/hpim2520.jpg/]http://img689.imageshack.us/img689/3149/hpim2520.jpg


[url=http://img23.imageshack.us/i/hpim2521h.jpg/]http://img23.imageshack.us/img23/6505/hpim2521h.jpg


http://img203.imageshack.us/i/hpim2519.jpg/

Did you replace your boby mount bushings too??? Sounds to me like your complaint is about normal. As Kerno explains about torque logistics. Also not mentioned yet that I seen, keep in mind your motor itself is gonna pull the left front of the car up if in Drive. It'll want to lift the right front side up in Reverse.

What has been said about torque is true. However, you should not have that severe a problem. Especially not at MILD acceleration. It sounds like someone may have tried to make it a drag racer by replacing the front shocks with some 90/10 versions. They let the front lift under acceleration thus transferring the weight to the rear. Also, the front springs may have been replaced.

Just a thought.

Jack

What has been said about torque is true. However, you should not have that severe a problem. Especially not at MILD acceleration. It sounds like someone may have tried to make it a drag racer by replacing the front shocks with some 90/10 versions. They let the front lift under acceleration thus transferring the weight to the rear. Also, the front springs may have been replaced.

Just a thought.

Jack


Yep, good suggestion there too. I too find it hard to beleive its that noticable for just a mile acceleration on a stock motor.

So would all that explain why mine drifts to the left when both rears spinning?
Donny

What has been said about torque is true. However, you should not have that severe a problem. Especially not at MILD acceleration. It sounds like someone may have tried to make it a drag racer by replacing the front shocks with some 90/10 versions. They let the front lift under acceleration thus transferring the weight to the rear. Also, the front springs may have been replaced.

Just a thought.

Jack

Hmmm well what i'll probably end up doing is to replace all related front and rear suspension parts (rear coils, front shocks) to see what happens...worth a shot! as for the body mount bushings...i haven't i did a frame on restoration so what could be done has been done

oh...No one has commented on how nice the car looks!!! :neutral2:

That would be straight Torque DDD