The gains of a custom tune have often been questioned with dyno sheets and track times. The only thing changed was the tune and here are the results.

14.9 4-29-09
14.995 @ 93.861 MPH corrected


Fast GMC 2500 Milan Dragway - YouTube


14.2 8-23-09
13.878 @ 98.991 MPH corrected

The HD runs a 14.2! 2500 - YouTube

 

no, the gains of a custom tune have never been questioned....

 

^^I was thinking the same thing.

 

Those runs aren't on the same day? Not even the same season? Means nothing to me...
If you want to prove it, save a bone stock tune, make a good tune for it, then go to the track and run 3 runs of each back to back.
Nobody questions the gain of a tune anyways, lol.

 

Custom tunes are for pansies, why not go with a real mod like a turbo...

 

i can has cuztom tunes?

 

I don't even understand your statement. To make a statement like that you would have to be comparing something. In this case Im going to assume your comparing a custom tune to either a handheld(hypertech or diablo) in which case I have never read an argument on which is better becasue anyone with common sense wouldn't even ask this question. Or possibly a mail order vs. custom dyno tune, which Im pretty sure has also never been argued as to which is better.

I am 100% sure I havent ever read a thread from anyone stating with dyno numbers and track times that there handheld blew a custom tune out of the water.

 

Yet another awesome thread

 

His compiling skillz are about as good as his fabricating skillz.

 

i would like to compile all of his epic threads.