i have drag racing for a couple years now but getting more serious into it this year since i did a build with more power.

in the past ive never had an issue but it seems with the more power the car isnt stable like it use to be. Granted im going speeds i never use to go so im not sure if this is normal.

Car is being used for ROLL/DRAG racing it does reach speeds of 160+ roll racing.

Currently the car makes 600whp its a h2b turbo setup in a Eg civic hatchback.
when under power for example brake boosting in 3rd let of the brake and take off the car wants to jump 3 lanes of traffic and i cant controll the car...

Suspension Mods/Tires/Current alighnment info below:

Tires: Front M&H 245/55/15s 26" tall


Front
Progress technology suspension ( drag spring rate ) 550 rear 450 front
aftermarket front lower controll arms ( poly bushings )
New Tie rods

just ordered Hard race compliance bushings and trailing arm bushings ( hoping it might help)

Rear
Function7 LCA ( Poly bushing )

Current Alighnment specs
Front

Left Right
.05 Camber .05 camber
-.015 Toe -.015 Toe

Rear

0 Camber 0 Camber
+.0625 toe +.0625 toe


A buddy of mine thinks the postive toe in the rear is the issue but i surfed alot of drag alighment threads on here that say positive toe in the rear makes the car stable at high speeds

any help/advice is greatly apreciated.

 

Toe in on the rear is for straight line stability. Toe out is to get the car to rotate around corners.

 

ok gotcha. apriciate the feed back.


my current alighnment is below...

so i should toe in the rear tires how much?

 

Best bet is to play with it and see what works. I'd install the bushings first and see what effect that has.