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whp and hp? #34901 Aug 10, 3:48pm Aug 10, 3:48pm
Joined: Jul 2003
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Dunn, NC
Spencer OP
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2000 Toyota Celica
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Posts: 409
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whp and hp?
whats the difference between whp and hp? I mean if you have high whp does that mean ur regular hp is lower or the other way around? confused


To deny the simple pleasures in life is to desire death in the most horrifing way.
Re: whp and hp? [Re: Spencer] #34902 Aug 10, 3:51pm Aug 10, 3:51pm
Joined: Oct 2002
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edge202
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whp is wheel horse power. it's the number you'll get if you dyno your car. bhp I think stands for brake horse power, it is the number you'll get from the car makers, like the gts is 180 hp, it's in bhp and not whp. Whp is a little less than bhp. I hope that explains, anybody want to add something ?

Re: whp and hp? [Re: Spencer] #34903 Aug 10, 3:53pm Aug 10, 3:53pm
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Moncton, Canada
edge202
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Say the gts is 180 hp stock, if you put it on a dyno it should give a little over 160 whp I believe

Re: whp and hp? [Re: Spencer] #34904 Aug 10, 3:58pm Aug 10, 3:58pm
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thanks guys thats extacly what i needed to know..:thumpsup:


To deny the simple pleasures in life is to desire death in the most horrifing way.
Re: whp and hp? [Re: edge202] #34905 Aug 10, 9:29pm Aug 10, 9:29pm
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Ernest
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Originally Posted by edge202
whp is wheel horse power. it's the number you'll get if you dyno your car. bhp I think stands for brake horse power, it is the number you'll get from the car makers, like the gts is 180 hp, it's in bhp and not whp. Whp is a little less than bhp. I hope that explains, anybody want to add something ?


Brake horsepower is taken from braking the the car down (the rollers on the dyno do that) until the revs drop hence the word "brake".


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Re: whp and hp? [Re: Ernest] #34906 Aug 10, 9:35pm Aug 10, 9:35pm
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Originally Posted by Ernest
Originally Posted by edge202
whp is wheel horse power. it's the number you'll get if you dyno your car. bhp I think stands for brake horse power, it is the number you'll get from the car makers, like the gts is 180 hp, it's in bhp and not whp. Whp is a little less than bhp. I hope that explains, anybody want to add something ?


Brake horsepower is taken from braking the the car down (the rollers on the dyno do that) until the revs drop hence the word "brake".

i dont get it...so does it mean..the engine is trashed after that?!


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Re: whp and hp? [Re: Spencer] #34907 Aug 10, 11:02pm Aug 10, 11:02pm
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Wheel Horsepower, is how much horsepower with the weight of the car, not too sure about BHP though

Re: whp and hp? [Re: GregO] #34908 Aug 11, 2:09am Aug 11, 2:09am
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good info thumbsup

Re: whp and hp? [Re: Elec-FuYu] #34909 Aug 11, 4:16am Aug 11, 4:16am
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Ernest
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Originally Posted by Elec-FuYu
Originally Posted by Ernest
Originally Posted by edge202
whp is wheel horse power. it's the number you'll get if you dyno your car. bhp I think stands for brake horse power, it is the number you'll get from the car makers, like the gts is 180 hp, it's in bhp and not whp. Whp is a little less than bhp. I hope that explains, anybody want to add something ?


Brake horsepower is taken from braking the the car down (the rollers on the dyno do that) until the revs drop hence the word "brake".

i dont get it...so does it mean..the engine is trashed after that?!


No. Dynos get your power reading by running your car through a brake of known resistance. This is Brake Horsepower (http://www.bartleby.com/61/14/B0451400.html). In essence most of the wheel horsepower figures are actually wheel (brake) horsepower since they where taken from brake dynos.

Some additional reading: http://www.landsharkoz.com/tt/tthp.htm


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Re: whp and hp? [Re: GregO] #34910 Aug 11, 4:22am Aug 11, 4:22am
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Ernest
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Originally Posted by GregO


Wheel Horsepower, is how much horsepower with the weight of the car, not too sure about BHP though


Wheel horsepower is the left over horsepower after mechanical loss (power loss from the drive line or engine auxillaries). Most RWD cars will have around 17% power loss from the engine to the wheels and FWD cars will have less losses (shorter driveline). Automatics will lose more power than manual transmissions (around 20% or more on RWD cars). The weight of the car is not part of the equation. wink


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