so went to the drag strip last weekend and have a typhoon intake underdrive pulley and 2.5 catback exhaust and ran a 16.3 stock ran a 16.4 4 years ago i ran a 15.9 on injen intake and over the axle exhaust and no underdrive pulley everyone said i was bogging out of the whole will suspension do that t you or do i have a bigger problem let me know

 

could of just been the temp. outside that day. were you spinning alot?

 

too many missing variables.
how often do you 'launch' your car or take it to a track to get comparible data?
I bet 95% of it is your launch/driving...learn the cars G'spot and you'll drop .5 second...then from there it takes constant tweaking of your launch as you add more tq/hp...

In one night you could easily run a 16.4 high and a 15.7 low.... My bone stock 04 Cavalier with a 5spd ran a 16 bone stock on 225/40/18's, lowered, intake, and getting nothing but wheel hop.

 

yea, but everything is bigger in texas.

 

im auto so i was launching at 2 grand cant launch any higher because im auto im bogging out of the whole ya it was 100 degrees outside