BHP of a bolt-on/tuned car?
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From: Lafayette/West Lafayette, IN
BHP of a bolt-on/tuned car? I posted this over in the external engine forum but haven't gotten any responses so I thought maybe it was supposed to be over here... Anyway, I've found myself talking to a few people recently who aren't the biggest car people, so they don't know the difference between RWHP and BHP, and they've asked me what I have for HP now that I've done the stuff to my car that I have. I didn't really know what to say. I know they are looking for BHP number since that's what cars are advertised with. I would like to know what my car probably has realistically now after the stuff I've done. I myself have also been wondering how mine compares to the LS2 cars with 400hp. I have done all of the bolt-ons except the UD pulley and an electric water pump, and I just recently got a great tune by Green Light Motorsports, and it feels a lot better now than it did before. If you had to make an educated guess at what i can tell me I have for BHP now, what would you say I have? (also, I've never even been on a dyno, so I have no idea the RWHP numbers even... I should be in the 12.8 range next time to the track on a decent day though)
Thanks for the help
Thanks for the help
Lets say you put down 340rwhp (which is typical power for a bolton car)
Factor in drivetrain loss of 15-20%. Happy medium of lets say... 18% maybe a little high but it works.
Take 340rwhp x 1.18 = 401.2 BHP
Not perfect... but close.
Hope this helps
Factor in drivetrain loss of 15-20%. Happy medium of lets say... 18% maybe a little high but it works.
Take 340rwhp x 1.18 = 401.2 BHP
Not perfect... but close.
Hope this helps
Launching!
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From: Canadian West Coast
Originally Posted by JKDZ28
Lets say you put down 340rwhp (which is typical power for a bolton car)
Factor in drivetrain loss of 15-20%. Happy medium of lets say... 18% maybe a little high but it works.
Take 340rwhp x 1.18 = 401.2 BHP
Not perfect... but close.
Hope this helps
Factor in drivetrain loss of 15-20%. Happy medium of lets say... 18% maybe a little high but it works.
Take 340rwhp x 1.18 = 401.2 BHP
Not perfect... but close.
Hope this helps
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From: Lafayette/West Lafayette, IN
Thats exactly what I was looking for . I wasn't sure exactly what to say, but from some of my own guesswork and math (i did like 350 x 1.15 = 402.5) I had been saying "I think around 400", so it sounds like that is a good thing to say. I guess I'll keep telling people that. Thanks guys .
. I wasn't sure exactly what to say, but from some of my own guesswork and math (i did like 350 x 1.15 = 402.5) I had been saying "I think around 400", so it sounds like that is a good thing to say. I guess I'll keep telling people that. Thanks guys . 
Well I went in for a bolt on tune yesterday and put down 346hp/346tq witht he mods in sig. My friend in his 06 GTO M6 did something like 363hp/359 tq with headers a full exhaust and air intake.
That should give you some idea as to what you are up against.
That should give you some idea as to what you are up against.
