bhp vs hp
10-08-2009, 03:28 PM
#2
it varys, flywheel hp and brake hp can be anywhere from around 10%-20%, depending of the loss in the drivetrain. Some tranny's lose more then others.
But remember dynos vary too. You can dyno the same day at 2 dynos and can get a difference of +-20 hp.
But remember dynos vary too. You can dyno the same day at 2 dynos and can get a difference of +-20 hp.
BHP is what the euros refer to in Motor Trend 
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10-08-2009, 07:01 PM
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For some reason I thought BHP was horsepower measured without the accessories on the front of the motor, and crank HP was measured with the accessories on it.
Maybe I am missing up gross and net flywheel HP....Jesus, we need to pick a standard and stick to it LOL
Maybe I am missing up gross and net flywheel HP....Jesus, we need to pick a standard and stick to it LOL
10-09-2009, 05:11 AM
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it varys, flywheel hp and brake hp can be anywhere from around 10%-20%, depending of the loss in the drivetrain. Some tranny's lose more then others.
But remember dynos vary too. You can dyno the same day at 2 dynos and can get a difference of +-20 hp.
But remember dynos vary too. You can dyno the same day at 2 dynos and can get a difference of +-20 hp.
Plus, I hear there are different types of dyno, and they can vairy
So what kind of BHP is a stock A4 LS1 ws6 kicking out?
Jesus, we need to pick a standard and stick to it LOL
Personally, I think 1/4 mile times, or 0-100mph, 0-60mhp times are best when compairing two different cars...
10-09-2009, 07:14 AM
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most of the ls1s were rated at 305-310hp at the flywheel from the factory.
but when those same cars were dynoing 290-310 at the WHEELS (after the 10-20% loss) it became apparent that GM underated them.
basically it works out to the engines were making about 330-340 at the flywheel. but they didn't want to upset the vette owners who were paying more for the "better" engine
but when those same cars were dynoing 290-310 at the WHEELS (after the 10-20% loss) it became apparent that GM underated them.
basically it works out to the engines were making about 330-340 at the flywheel. but they didn't want to upset the vette owners who were paying more for the "better" engine
10-09-2009, 08:28 AM
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bhp stands for brake horse power and is measured at the flywheel
So I guess the bhp of an A4 LS1 is about 330bhp, and around 300rwhp, thanks for clarifiying
