[Steve03GT]

quote:Originally posted by old head from phila.

Sorry so long geting back,but my computor stoped working,and i am at the a public one.But back to the truth.I went to the 1/4 mile track,got there early,in 1 hour made 8 runs,6 changes,without shut the engine off and corrected for weather changes 3 times.With a full tank (About 3550 lbs.) 2 Blast out runs on street then 1 hr. cooldown
1st run 15.67/88.03 2nd 15.72/87.40(warmed up)now add .025 bleed hole in waste gate hose
15.48/87.65 add now .030 hole 15.42/87.65 now remove both air box silencers 15.37/89.42 now remove air filter(used 5000 miles) 15.33/89.49 now .036 hole 15/24/90.37 now not contiue to idle off line,trying 2000 gas & brake 15.11/90.70 (Came out burning like a fuel burning dragster) Well no 14s,but I had fun.Going to install my stage 1 and then back to the 1/4 mile,I feel this is the only 100% good testing that i have seen on this sight.I am sorry i won't be able to answer any of your posts because my computor died or till its fixed OLDHEAD

thanks for the info. It appears you improved .11 secs after removing silencers and filter which equates to a rule of thumb ~10 hp at the strip. this is great empirical data, I've been concerned the air intake flow may have been outside the PCM look-up tables, apparently not. Great news for all of us who've modified our air intakes.