4-link/swing-arm dragster burnout
#42
Senior Member
RACING JUNKIE
Join Date: May 2003
Location: Coldwater, MI
Posts: 2,998
Originally Posted by dparker
Whats the best way to check pinion angle on a 4-link dragster...
#43
Senior Member
DYNO OPERATOR
Thread Starter
Join Date: Aug 2005
Location: Rifle Colorado
Posts: 585
Testing went great! The seat pad made all the difference.....didn't like the pinion angle though. Vibrated from the hit, so we moved it back to 1 degree neg and took care of it.
The track set him up on a .4 pro tree and he went .019, .016, and .001 on the last run with no time in the box. I know he'll get better from there now that he doesn't hate the car.....on all burnouts he brought it up to about 2500 then just nailed it and it worked just fine. 5.5psi in the Hoosiers, all runs in Supercomp trim on the stop and 60's were 1.538, 1.541, 1.536....9.50@163 at 8200ft....he's a happy guy!
Thanks for the help guys,
Johnny
The track set him up on a .4 pro tree and he went .019, .016, and .001 on the last run with no time in the box. I know he'll get better from there now that he doesn't hate the car.....on all burnouts he brought it up to about 2500 then just nailed it and it worked just fine. 5.5psi in the Hoosiers, all runs in Supercomp trim on the stop and 60's were 1.538, 1.541, 1.536....9.50@163 at 8200ft....he's a happy guy!
Thanks for the help guys,
Johnny