Best front end changes for high speed stability?

[Supercharged111]

if you want a G body to handle you need to start with a boxed frame, frame braces ,new body mount bushings, new control arm bushing. You also need to lower the car and use tall ball joints is required to get your front upper control arm ball joint above the cewnter point of the arc so the camber increases as you compress the suspension. With the stock set up the control arm is pointing down so as youn compress the suspension the top of the tire goes out give you positive camber before it starts to give you the negative chamber that you need in a corner

The lower arm should do the same though and win the battle being longer. Or is there dissimilar geometry between upper and lower? My car is 20 minutes away.

 

[pontiacgp]

The lower arm should do the same though and win the battle being longer. Or is there dissimilar geometry between upper and lower? My car is 20 minutes away.

the lower needs to be point down so when the suspension is compressed the lower goes out increasing the negative chamber....also if you have the lower pointing up your lower will bind on the frame when the suspension is compressed

 

[Clone TIE Pilot]

How does a rear frame brace aid steering?

I assume the rear brace reduces frame flex which keeps the rear wheels in better alignment to the front which promotes better tracking. Without the brace, the rear is like a big tuning fork. My CVPI has a similar brace from the factory for a reason. The guy who came up with adding adding a rear frame brace, Jeff, commented he experienced improved steering after adding one, as have I.

 

[Wageslave]

Thanks for the advice! I will look into what needs changed when I do my brakes, in a month or so. I also know I need to go ahead and get the V8 front springs put under there, which is also likely contributing to the problem.

 

[pontiacgp]

I assume the rear brace reduces frame flex which keeps the rear wheels in better alignment to the front which promotes better tracking. Without the brace, the rear is like a big tuning fork. My CVPI has a similar brace from the factory for a reason. The guy who came up with adding adding a rear frame brace, Jeff, commented he experienced improved steering after adding one, as have I.

you would not see a difference testing it with the feel of the car.....you could only tell if it inproved the handling with before and after time trials on a road course.

 

[Streetbu]

While the vehicle needs to be in good shape and many of the things people have mentioned will help, most of the issue is aerodynamics. I would try to control the air going thru the grill, over the car, and more importantly under the nose of the car. Easiest would be to lower the front, next would be to add a splitter under the bumper to force the air around the car instead of underneath it. JMO

 

[Tony1968]

While the vehicle needs to be in good shape and many of the things people have mentioned will help, most of the issue is aerodynamics. I would try to control the air going thru the grill, over the car, and more importantly under the nose of the car. Easiest would be to lower the front, next would be to add a splitter under the bumper to force the air around the car instead of underneath it. JMO

I would love to see a splitter or air damn for the front of g bodies.

 

[Streetbu]

I would love to see a splitter or air damn for the front of g bodies.

At some point in the next year or so I plan on one for mine 😀

 

[Tony1968]

At some point in the next year or so I plan on one for mine 😀

If you are going to fab it up yourself please keep me informed!!!!!!

 

[Streetbu]

Im planning on it