hook help
TECH Regular
Joined: Sep 2008
Posts: 401
Likes: 22
From: Houston
Your trans brake pass looks like the car hit the tires hard, squatted, and then unloaded. So the tires hit hard and started to spin a little and when the car unloaded and the weight came off the rear tires it was spin city. The fishtailing is bothersome because the car did not leave straight.
Next time you race can you have someone stand right beside your car and video your launch from the side? That way we can see what the rear tire and suspension are doing.
Sounds like you have stock rearend, stock LCA with adjustable brackets, stock TA with adjustable crossmember, stock rear springs with CE 3-way adjustable shocks and stock front suspension. Is that right?
Next time you race can you have someone stand right beside your car and video your launch from the side? That way we can see what the rear tire and suspension are doing.
Sounds like you have stock rearend, stock LCA with adjustable brackets, stock TA with adjustable crossmember, stock rear springs with CE 3-way adjustable shocks and stock front suspension. Is that right?
TECH Regular
Joined: Sep 2008
Posts: 401
Likes: 22
From: Houston
Some good advice here. I would start by leaving off idle on footbrake and N/A until you can get it to hook and leave straight. Video your launches up close so you can see what the suspension is doing. If you haven't already, remove your front sway bar and check all your suspension bolts and connections and make sure everything is tight.
Then one adjustment at a time for a couple of passes starting with 15 - 18 psi in the radials and a good 5 second burnout. Then adjust your LCA up one, then your TA. It will take some work and time.
That will help you make the most of what you have but you're going to need to stiffen up the suspension to hook off the trans brake on full power. Your stock springs and suspension can't take the shock. You're going to keep unloading the tires. Coilovers, LCA, TA, PHB, etc. Then kiss your 10 bolt good bye.
Then one adjustment at a time for a couple of passes starting with 15 - 18 psi in the radials and a good 5 second burnout. Then adjust your LCA up one, then your TA. It will take some work and time.
That will help you make the most of what you have but you're going to need to stiffen up the suspension to hook off the trans brake on full power. Your stock springs and suspension can't take the shock. You're going to keep unloading the tires. Coilovers, LCA, TA, PHB, etc. Then kiss your 10 bolt good bye.
Last edited by gesto; Jun 8, 2017 at 10:47 PM.
Adjusting the control arms up is what needs to happen. Put an angle finder on the door sill. Then adjust the rear control arm until they are 2ish degrees down hill to the rear end compared to the door sill angle.
The car has too much anti squat and is hitting the tires too hard.
18-20 psi is a good window.
Make sure the shocks are set on 50/50.
Is the front swaybar removed?
The car has too much anti squat and is hitting the tires too hard.
18-20 psi is a good window.
Make sure the shocks are set on 50/50.
Is the front swaybar removed?
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First run of day. Had to list to how bad I was gonna get bet by daddy's vetted for about 45 mins. They missed recording the burn out. Tires at 22. Footbrake around 2000. And 100 shot.