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trapping @ 130 m.p.h still can't hook

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Old 10-18-2008, 02:29 PM
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Default trapping @ 130 m.p.h still can't hook

I am making enough power for a mid to low 10 sec. pass but can't get the car off the line with a dead hook. It's a heads/cam/ nitrous car. I am running a midwest 9 rear with relo brackets in lowest hole,lower adj. control arms, short tq arm set @ -2. Strange single adjustables and springs up front and this time a new set of slicks. On motor it will dead hook with a high 1.6 60 ft. but when I spray, it still spins, sometimes through the 60 ft. I am still running stock shocks and springs in the rear. I feel like I am missing something little, I am not to familiar with instant center and the front torque arm mount. Any advice would be greatly appreciated.
Old 10-18-2008, 04:01 PM
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What kind of tires (stiff wall or soft) are you using? M6 or A4 tranny? How hard you leaving? Need some more info about your car to help out better.
Old 10-18-2008, 04:14 PM
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Get a spotter with a high quality video camera to record a few of your launches from either side of the car and you should be able to get enough info on slo-mo replay to see exactly whats happening and what to change
Old 10-18-2008, 05:09 PM
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https://ls1tech.com/forums/drag-racing-tech/1003526-instant-center.html
Old 10-18-2008, 05:53 PM
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Originally Posted by smokeum99ta
What kind of tires (stiff wall or soft) are you using? M6 or A4 tranny? How hard you leaving? Need some more info about your car to help out better.
Soft wall, tried psi from 15 to 11. A4 with a yank ss4000. Footbraking to about 2800 and going to the floor, nitrous off the line. I did a search and read about instant center, I have my front tq arm mount in the second to bottom hole, angle set at -2, lca's in the bottom of the relo. brackets. Car weighs 3650 with me in it and the calculator says I'm making like 625 at the wheels to go 130mph at this weight.
Old 10-18-2008, 06:01 PM
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hmmm. my car cuts 1.45 60s with stock suspension and mickey DRs. could have been bad track prep maybe?




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