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Author Topic:   pushing
posted June 27, 2003 12:30 PM
ok I am having a problem with a push condition upon entry, it just wont turn and then when it does it causes me to be loose off due to over steer, it is not real real bad but gets worse has the track gets dry,
1984 monte carlo, 1200 rf 1000 lf 250 lr 200 rr, afco shocks , no sway bars, on1/2 mile with sharp turns, running about 2 inches of stagger across the rear, what could cause this and what kinda tire pressures should i run with 245/60/15 tiger paws, and if it pushes what tire pressures do yo go up and down to help,

posted June 27, 2003 03:05 PM
what are you running for stagger in the front?also how do you enter the that might have something to do with it also i know when i run a different track that has tighter corners i have to realy pitch the rear end into the corners or it would push real bad compared to driving around my home track that has pretty sweeping turns

posted June 27, 2003 04:39 PM
well the front tires are same size because of rules but I have the lf spring cup about 1 1/4 shorter than the rf. I have been running real hard into the corners near the center where everyone else seems to be but I was told that I could be running it in to hard(imagine that= who would guess). I seem to do really well untill I get passed but then it starts to push more because i am running it in deeper and harder i guess i should run my own line regaurdless.

posted June 27, 2003 04:50 PM
Generally a "push" is caused from excessive crossweight. I run the same tires and am AMAZED at what drastic effects that air pressures have. You might want to begin by putting a 3/4" spacer between the shim and the left front spring. That will bring the cross weight down dramaticly. (I have made spacers like this out of plywood and out of rubber conveyor belts. It will look like a big donut and slide over the spacer and then put in the spring.)
At that point I would adjust with air pressure in the left rear to tighten it back up.
If you can...scale it before and after the change. Full cell, tires set to racing psi, and you in the car.
Lemme know!

posted June 27, 2003 11:18 PM
If you are using the brakes, your rear brakes could need adjusting. Too much front brake will cause a push.

posted June 27, 2003 11:27 PM
try reducing the right front brake. If your rules allow it put an adjustable valve in the right front brake line and reduce that brake. that will help the car turn going into the corner. If you cant run a valve then take the pads off and hit them with a 4 inch grinder and reduce the size of the linings untill they are about 2 inches by 2 inches. its not as dramatic as taking the brake off all together but it does help lead the car to the left under braking.

posted June 28, 2003 01:54 AM
We had the exact same problem all of last year. We lowered our right front spring rate and it loosened our car up significantly going in. Our driver had to go slower in but was much faster off the corners. The forward bite coming off the corners doubled. The driver had to make a huge adjustment. He said it felt weird but it was fast and he had to change his driving to fit the car. This made the car overall much faster.

Just my thoughts on this.


posted June 29, 2003 07:47 AM
lower front spring rate and disconnect right front brake, we pull the line off and ***** a bolt in.

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