im gunna dyno my truck on january 18th, and wanted to know if there was any last minute things i could do. i low on the green so no more mods, but as far as my truck running in tip top shape. i just did my oil change yesterday and im not planing on packing miles on it.

just wanted some tips/suggestions ya know

one more thing
will the speed limiter throw off my #'s a lot???

 

i thought my sig would show my specs

2002 4.8L ECSB
mods
UPD
50 series flowmaster single 3 inch in dual 2.5 out
descreened MAF
vette servo

any ideas what #'s ill get?????

 

You could change your tranny fluid and gear fluid. If you don't have a HPPIII, they should only dyno in second. That will throw your numbers off by 6-15 rw. I would expect you to be in the 240+/- range.

 

In second you are probably in the 230 range, maybe a tad less. Bryan was in the 250 range in 3rd in his 00 4.8 but he also had headers on.

See if you can make the dyno run early in the morn so you get the benefit of colder air. The numbers are corrected for air, but it still wont hurt. You can do some of the LS1 free mods like throttle body bypass and EGR trim.

 

ive heard about the TB bypass but i havent heard about the EGR trim mod

i thought the 2002's didnt have EGR <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />