I recently dynoed (inertial dyno-jet) my ’01 and only got ~340 RWHP. The guy at the dyno shop did not have a lot of experience w/ L’s and only pulled in 2nd gear. Also, I have 20” KMC Thunders that way a chit load more than the stock ’01 wheels. I was wondering if the ~340 HP is consistent w/ everyone else’s results. The reason I ask is someone else in our car club has an ’02 True Blue with the mufflers removed and he pulled ~370 RWHP.

Plans are to dyno again, but this time in 3rd gear. Since the last run I switched to Royal Purple and will have an Anderson Ford PowerPipe w/ 12” Filter installed. Looking for ~350 RWHP or am I dreaming?

 

Should be doing it only in 3rd. Your heavy wheels will cost you a little.

 

You should always dyno from around 70 with OD OFF in 3rd gear without downshifting......

 

im sure those 20's are hurting your numbers,my truck is a dog with mine on,not really but i can tell the difference

 

for those of you losing power from those big heavy wheels, i'll trade you my light stock set for yours

(just trying to help you gain some more rwhp)

 

Thanks, but no thanks! I bought my now fiance a ring and she bought me 20's. Can't beat that.