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beans
ECelica Jester
beans Jan 24, 3:33am - #89447 
2000 white Toyota Celica GTS
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What's the difference between...

HP and WHP?

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element_celica
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element_celica Jan 24, 3:36am - #89448 

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hp= horsepower to the crank/flywheel

whp= wheel horsepower, power directly from the wheels. there is a loss in power due to drivetrain.

rip celi...
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VSGTS14
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VSGTS14 Jan 24, 4:55am - #89449 

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2005 Subaru WRX STi

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Originally Posted by element_celica
hp= horsepower to the crank/flywheel

whp= wheel horsepower, power directly from the wheels. there is a loss in power due to drivetrain.


yep...

whp is what you want to look at for best readings on the actual hp.

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LinkTallica
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LinkTallica Jan 24, 5:50am - #89450 

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1996 Geo Prizm

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Cal LA
Originally Posted by element_celica
hp= horsepower to the crank/flywheel

whp= wheel horsepower, power directly from the wheels. there is a loss in power due to drivetrain.
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celicaTRDgts
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celicaTRDgts Jan 24, 5:52am - #89451 

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Originally Posted by element_celica
hp= horsepower to the crank/flywheel

whp= wheel horsepower, power directly from the wheels. there is a loss in power due to drivetrain.


true that

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blackcel
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blackcel Jan 24, 8:12am - #89452 

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2000 Toyota Celica GT

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Southeastern, Illinois
Originally Posted by element_celica
hp= horsepower to the crank/flywheel

whp= wheel horsepower, power directly from the wheels. there is a loss in power due to drivetrain.

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stefanoc
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stefanoc Jan 24, 10:28am - #89453 

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2002 Toyota Celica

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CA
as explained by the previous posters.
hp numbers are more while whp are less
for example celica gts hp is 180hp and approx 161whp

a good way to explain this is by comparing it with a price tag. lets say you find a shirt that says 19.95$ on it, but when you buy it you end up paying 22.32$ or whatever. the shirt is 19.95$ but actually you paid more than that. same with hp, its 180hp but actually the power you getting is 161whp

bad example but you should get the point by now
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Speed4TheNeed
Caleb
Speed4TheNeed Jan 24, 1:41pm - #89454 

Caleb
2000 Toyota Celica

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New Orleans, LA
Originally Posted by VSGTS14
Originally Posted by element_celica
hp= horsepower to the crank/flywheel

whp= wheel horsepower, power directly from the wheels. there is a loss in power due to drivetrain.


yep...

whp is what you want to look at for best readings on the actual hp.


ditto. you should definately pay more attention to whp than bhp.

and example would be the celica gts and the acura rsx-s. i've said this plenty of times already but i'll say it again:

factory rated horsepower (they use bhp, naturally) for the gts is 180 bhp. for the rsx-s, they get 200 bhp. so just by comparing these #'s you can assume the the rsx-s does a lot better than the gts because it has '20 more horses'. (just for the record, the rsx-s does put up VERY slightly better #'s than the gts, except in 0-100--which the celica is better.)

but anyway, when you dyno a car (dynos rate whp), you can see some dynos for the rsx-s will come out to 163 whp. dyno a celica gts and your average output will be about 160 whp.

so now, that '20 horsepower' is really only 3 horsepower--NOT a big difference.

bhp is what the engine is capable of producing without the friction of the drivetrain, etc.

whp is what's left after all that lost power is subtracted. hence, it is the better number to go with because it's actually what you get to drive around with. thumbsup
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beans
ECelica Jester
beans Jan 25, 9:20pm - #89455 
2000 white Toyota Celica GTS
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what's bhp?
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Speed4TheNeed
Caleb
Speed4TheNeed Jan 25, 9:38pm - #89456 

Caleb
2000 Toyota Celica

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Originally Posted by beans
what's bhp?


as stated above. bhp is "horsepower at the crank". it's horsepower that the engine produces before friction of the drivetrain takes it toll and decreases this value to whp. thumbsup
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Donegan
Member
Donegan Jan 25, 10:20pm - #89457 

Member

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JAPAN
Now on to the PS...
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beans
ECelica Jester
beans Jan 26, 12:29am - #89458 
2000 white Toyota Celica GTS
ECelica Jester
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How do you find a place that runs dyno tests on your car in your town?

How much do they usually cost . . . so I don't get taken for a fool

sir that dyno test will cost you your left ball.
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VSGTS14
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VSGTS14 Jan 26, 12:31am - #89459 

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Milford, NJ
Originally Posted by Donegan
Now on to the PS...


PS is what hp is over seas...idk how to convert it though.

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Xer0GT
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Xer0GT Jan 26, 3:29am - #89460 
2003 Solar Yellow Toyota Celica GT
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Originally Posted by Donegan
Now on to the PS...


are you refering to psi??

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Speed4TheNeed
Caleb
Speed4TheNeed Jan 26, 3:31am - #89461 

Caleb
2000 Toyota Celica

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New Orleans, LA
Originally Posted by Xer0GT
Originally Posted by Donegan
Now on to the PS...


are you refering to psi??


no, ps is different from psi.
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beans
ECelica Jester
beans Jan 26, 3:33am - #89462 
2000 white Toyota Celica GTS
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Philadelphia, PA
what's the b in bhp stand furr?
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Speed4TheNeed
Caleb
Speed4TheNeed Jan 26, 3:34am - #89463 

Caleb
2000 Toyota Celica

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New Orleans, LA
Originally Posted by VSGTS14
Originally Posted by Donegan
Now on to the PS...


PS is what hp is over seas...idk how to convert it though.


PS to HP: online converter


1 PS = 0.986 HP thumbsup
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Speed4TheNeed
Caleb
Speed4TheNeed Jan 26, 3:36am - #89464 

Caleb
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New Orleans, LA
Originally Posted by beans
what's the b in bhp stand furr?


bhp = brake horsepower
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Donegan
Member
Donegan Jan 26, 5:22am - #89465 

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JAPAN
Originally Posted by Xer0GT

are you refering to psi??


No...
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LostAngel
Specialist
LostAngel Jan 26, 6:20am - #89466 
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Pennsylvania
Originally Posted by beans
what's the b in bhp stand furr?

BHP - Brake horsepower. A measurement standard used by manufacturers to help consumers compare engines. NOTE: BHP is measured at the maximum operating RPM of the engine, which may not be the RPM level at which your engine will provide maximum life and consistent performance.
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