With just a chip, I ran a 13.9, that's at 3200 ft above sea level. I put on a 6# pulley, JDM chip, and MAC cold air, 26" ET streets, and gained a whopping .3 and .5 mph. WOW! What a waste of money! Is my chip not tuned right, or what's the matter.

 

did you have you chip retuned for it?

does your tuner know what elevation your at and what gas your using?

somthings not right.

 

What was your 60' sparky ????

Also, how about temp & humidity numbers ??? Did you let the truck cool down or did you hot lap it ???

 

Maybe this is the problem? The MAC air???


Dan

 

My 60' were at best a 1.9, most of them 2.0. I ran that with my F1's easing out of the hole because of no traction! I ran a 13.6 with it completely hot, and then let it sit for an hour, and couldn't break a 13.7. Pretty sad. The chip was ordered with the pulley, and was supposed to be tuned for the pulley. I doubt it, something is not right.