Quote:

We run both 0.5 & 0.4 trees, so with the 0.5 tree we run a 29.5" front tire and launch at idle & higher; 0.4 tree a 28" tire and vary the starting line rpm from between 2500-3500. We fine tune the reaction time with the starting line rpm; the higher the stall speed the quicker the launch, hence lower reaction times. Change the car, not the driver. Leave at the same point on the tree.




X2 That's how we do it....

If its real close, we will adjust the air pressure in the front tires up or down. Lower scrubs a little off, higher reacts quicker.

Last edited by Dragula; 05/14/12 09:30 AM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk