Problem cutting a light

russellauto1 · 09-21-2014, 08:19 PM

I have a 93 Formula f body firebird I run In D/PS.I am having trouble cutting a light with the car. I shallow stage, rpms at 1500 at start. I leave as the last yellow is starting to come on and the car gives me a .671 light. I made a second pass to make sure it wasn't me, it was another .6719. I have been fighting this all year. I have put air bags in the rear with 25psi in right rear, 5 in drivers. I have tried 35psi to 10 psi and no difference. Lower control arms are level with the frame ties. I have tried lowering them and it seems to hit tires harder. The torque arm is in the stock setting, but not mounted to the trans. Springs are v6 springs with a 1/2 coil cut off. The rear shocks are 50/50 new lakewood. Stock anti roll bar. I have 145#s of weight in the rear of the car to make weight. The converter is built for the car combination. I have 4.56 rear gears with 26x8.5 rear tires.
The front suspension has 6" of travel for the front tires to fall out of wheel well. Lakewood 90/10 shocks with stock springs on front with 1 coil cut off. I was thinking of making front end limiters so i could make the car move forward. In the car, it seems like the car is trying to rock back on the rear tires, while lifting the front. The 60ft times are great. Here are my times

1.608 60ft
8.10 1/8th
82.56 1/8th mph
12.82 1/4
102.89 1/4 mph

I run 22 psi in the rear tires. The 60s are very consistent, and the car runs dead on the money every pass. Ran two 8.102 Saturday in tt and dialed in a 8.09. Ran 8.10 1st rd and lost because i had a .6719 light. I practice on a practice tree every night. I am very consistent on it in several different situations.

I am going to lower the torque arm 1 1/4 inches in the front and see what happens. Is that the right move ? Also how many racers use front end limiters on there stockers? Is 6" to much travel? Was thinking of limiting to 4" and see what happens. I am looking to classracer for help. Thanks In advance.

09-21-2014, 08:19 PM	#1
russellauto1 Member Join Date: Oct 2008 Posts: 146 Likes: 2 Liked 40 Times in 6 Posts	Problem cutting a light I have a 93 Formula f body firebird I run In D/PS.I am having trouble cutting a light with the car. I shallow stage, rpms at 1500 at start. I leave as the last yellow is starting to come on and the car gives me a .671 light. I made a second pass to make sure it wasn't me, it was another .6719. I have been fighting this all year. I have put air bags in the rear with 25psi in right rear, 5 in drivers. I have tried 35psi to 10 psi and no difference. Lower control arms are level with the frame ties. I have tried lowering them and it seems to hit tires harder. The torque arm is in the stock setting, but not mounted to the trans. Springs are v6 springs with a 1/2 coil cut off. The rear shocks are 50/50 new lakewood. Stock anti roll bar. I have 145#s of weight in the rear of the car to make weight. The converter is built for the car combination. I have 4.56 rear gears with 26x8.5 rear tires. The front suspension has 6" of travel for the front tires to fall out of wheel well. Lakewood 90/10 shocks with stock springs on front with 1 coil cut off. I was thinking of making front end limiters so i could make the car move forward. In the car, it seems like the car is trying to rock back on the rear tires, while lifting the front. The 60ft times are great. Here are my times 1.608 60ft 8.10 1/8th 82.56 1/8th mph 12.82 1/4 102.89 1/4 mph I run 22 psi in the rear tires. The 60s are very consistent, and the car runs dead on the money every pass. Ran two 8.102 Saturday in tt and dialed in a 8.09. Ran 8.10 1st rd and lost because i had a .6719 light. I practice on a practice tree every night. I am very consistent on it in several different situations. I am going to lower the torque arm 1 1/4 inches in the front and see what happens. Is that the right move ? Also how many racers use front end limiters on there stockers? Is 6" to much travel? Was thinking of limiting to 4" and see what happens. I am looking to classracer for help. Thanks In advance. Last edited by russellauto1; 09-21-2014 at 08:32 PM.