how to calculate hp

[the_jester]

i have been looking into getting some headers for the TBSS and have seen alot of claims of 40hp for full exhaust systems, including headers and true duals. i have always wondered if its okay to add these up when your trying to estimate your horsepower, like my cold air intake was supposedly a 18.something gain, and the e-fans and tune was around 30 and the full exhaust is supposed to be 40. i have read that components work better when together so i should get even more than what they add by themselves. but individually that 88hp on a engine making about 320whp stock thats around 400 at the wheels. not too shabby.

[the_jester]

i know the only real way to know is get it on the dyno, but im waiting to do that till after i get the full exhaust done, so probably not till the end of the summer, then bring on the GC srt8 boys.

[SCIV]

Sorry, you just can't add the gains.

[thunder550]

Sorry, you just can't add the gains.

x2....and the gains that the companies report are generally very exaggerated as well.

[the_jester]

ehh, oh well it will still be a decent gain. and I'll find out what she really puts down once everything is on. i guess i could also try to find someone with the same mads and see what they are putting down, but my truck seems to run better than most i guess because of being right at sea level. well what do you guys think she will be at with those mods?

[ChevyLee]

it depends on the size of the sticker you put on the back window and what it says.
jk

[zeake]

I am for long tubes,exhaust, a better intake and a polished and ported thottle body.
How did the efans do and does it void your warrenty?

[SCIV]

DBTBSS has just that, and runs better than 13.4 in the quarter. That is hauling the mail for just those mods.

[ChevyLee]

DBTBSS has just that, and runs better than 13.4 in the quarter. That is hauling the mail for just those mods.

his ride is really nice i rod in it tonight its pretty quick and has a smooth ride

[the_jester]

well right now all i have is a k&n cai and muffler delete and i run 13.33 so after the tune and e-fan i hope to be about 13.0-13.1. most guys on the tbss forum are see gains of about 25-30 from combined tune and e-fans. i just ordered the e-fans and tune today.