i have a evo 9 i just put the fp4 cams and reflashed it again i went to the track and ran a slower time than before i ran a 12.9 i ran a 12.5 before i had cams, i also noticed that i bogg all the time now at take off why is that

 

is your stationary rev limit set the same?
same track prep?
tire psi?
more info about the reflash?
boost leak test?


you are asking a very broad question

 

on my flash i have intake full exhaust with ic piping fp4 cams and my rev set to 6, and the track is the same place also what tire psi is the best for drag racing

 

You should log your hp instead of 1/4 mile times. Maybe you just had a great launch the first time, no so great this time around.

 

Well some times its a fluke, try raising the 2 step, practice, you will get better times.

 

post the before and after hp/tq and timeslips...impossible to help without any data.

 

if you're bogging off the line all the time now, I can see why you run slower. If you get that bogging fixed I'm sure you'll do about the same if not better time. gl

 

But even if you are bogging off the line, what was your trap at the 12.5 and the 12.9? Did it go up, down, the same?

 

No body can help you without some dam info. Track slips, logs, something!

Did you retune after installing the cams?

 

Your mivec tables are not correct for the cams.

 

what were the mph numbers before and after?