BHP & WHP CONFUSED...
11 July 2016, 12:30 PM
#1
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BHP & WHP CONFUSED...
Very confused been looking at importing parts from the US but every part as WHP figures,, can anybody tell me what 400whp means in bhp?? 
Thanks
Thanks
11 July 2016, 12:45 PM
#2
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Mine is 260whp and 333bhp. (Scoobyclinic dyno)
400whp would be about 500bhp on a WRX and about 520bhp on an STi. As the STi has more tranny losses. On a fwd vehicle 400whp would be about 440bhp, less tranny losses.
400whp would be about 500bhp on a WRX and about 520bhp on an STi. As the STi has more tranny losses. On a fwd vehicle 400whp would be about 440bhp, less tranny losses.
11 July 2016, 12:49 PM
#3
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why do you literally compare wrx to sti in EVERY thread. **** me youre annoying and you do yourself no favours. The guy asked for WHP relative to BHP not ****in comparethemarket.
11 July 2016, 12:52 PM
#4
In the USAiii everything is quoted at whp but not always correct, ive seen people with graphs of 20Gs running 400whp lol as for the donut matt he is incorrect there is no difference is transmission losses between the sti and wrx, its roughly in the region of 18-22%.
Id say there whp horsepower is same as our flywheel
example
http://forums.nasioc.com/forums//sho....php?t=2683206
Id say there whp horsepower is same as our flywheel
example
http://forums.nasioc.com/forums//sho....php?t=2683206
11 July 2016, 02:02 PM
#7
WHP is the figure that is actually measured by a dyno.
The flywheel figure is just a calculation done which assumes transmission loss at a set percentage (say, 11%) to give you a flywheel figure.
WHP is more accurate in as much as it's the actually figured measured. However, it's obviously going to be lower than a calculated flywheel figure, so BHP is often used as it's a higher, more impressive figure.
All dyno's vary though, so figures will be different, regardless of whether you quote WHP or BHP (plus weather conditions, tyre pressures etc).
The flywheel figure is just a calculation done which assumes transmission loss at a set percentage (say, 11%) to give you a flywheel figure.
WHP is more accurate in as much as it's the actually figured measured. However, it's obviously going to be lower than a calculated flywheel figure, so BHP is often used as it's a higher, more impressive figure.
All dyno's vary though, so figures will be different, regardless of whether you quote WHP or BHP (plus weather conditions, tyre pressures etc).
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11 July 2016, 03:21 PM
#9
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So that's:
187.3 atw = 261.0 bhp (AET dyno)
260.5 atw = 332.6 bhp (Scooby Clinic Dyno)
I have printouts of both if the usual STi fanboys want to call BS.
12 July 2016, 09:19 AM
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Wow, amazing Matt, just as a comparison, my old Spec C had 312bhp and put 265bhp of that on the road.... oh thats more than your wrx with less power 
probably something to do with the better diffs they put on the STI's
probably something to do with the better diffs they put on the STI's
Last edited by TonyBurns; 12 July 2016 at 09:23 AM.
13 July 2016, 06:18 PM
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aRSe_Matt's definitely been on here since that BANNED script appeard on his profile so it may well be self inflicted, although I have to say I have no idea what access restrictions are placed on a banned member if it was genuine.
Whatever, enjoy the silence!
13 July 2016, 07:39 PM
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Matt is indeed banned; he hasn't written BANNED as his status! If you search for a member, if they are banned, their profile won't come up. It will say 'no matches found'.
13 July 2016, 09:36 PM
#29
It will be temporary, many of us have been in the naughty bin from time to time.
You all missed me when I was gone, you'll feel the same about RSTWAT in a few days...afterall newbie members don't really have the wrench time in Subarus to be casting old timers out.
You all missed me when I was gone, you'll feel the same about RSTWAT in a few days...afterall newbie members don't really have the wrench time in Subarus to be casting old timers out.
14 July 2016, 09:14 AM
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