Did we get the BHP spec already?

[Dave-ROR]

Originally Posted by fatoni

engine outputs are usually measured at the flywheel where brake hp is measured while the engine is in the car on a dyno. they figure out the whp and then they find out how much braking power the car generates off throttle and that is how much drivetrain losses the particular car gives up. they add the two for bhp. they should be the same but im sure some power is lost in heat and some other forms that isnt quite sent to the wheels.

I'm pretty sure that's wrong.

As far as I know, BHP is measured on an engine dyno without accessories, etc. I've never heard the description you wrote for it.

To my knowledge, WHP is the only measurement ever made with the engine in the car.

Braking power off throttle measurement? I've never seen a dyno provide anything like that...

The Brake part is just whatever device (in modern times it'd be an engine dyno) holds the engine at a certain RPM using load, measures the torque and then the BHP is calculated.

The chassis dyno equivilant would be a loading dyno, like a Mustang dyno, which is great for tuning as you can keep the car at X speed to tune multiple load cells.

[Dave-ROR]

Originally Posted by Type[R]+

yeah, close enough... British always say bhp, which always seems to be the same.

bhp = hp at the crank, and hp = hp at the output of the gearbox?...

HP as referred to in the US is SAE net, which is basically BHP except with the accessories (parasitic drag inducing components, like PS pump if belt driven, water pump if belt driven, alt, etc), intake, exhaust, etc. Neither include transmission losses (trans/diff/etc).

[Mr.Jay]

Originally Posted by ftw-86

http://www.autoblog.com/2011/09/09/m...-civic-type-r/

256hp 180tq from a 2.2l

With a turbo = not impressive



The kpro itself is half of your 2k pretty much after taxes and you must be including all the other parts without labour or a proper tune as that would all be extra cost


Hondas are however cheap to mod due to the number of mods and cars out there


K20A forever 220 hp @8000 152 lb·ft @7000 those are some nice NA numbers right here I really want the FT86/FRS/BRZ to at least match these figures


HP to BHP usually results in a couple hp difference but its not enough to agure about

[SUB-FT86]

Originally Posted by Mr.Jay

With a turbo = not impressive



The kpro itself is half of your 2k pretty much after taxes and you must be including all the other parts without labour or a proper tune as that would all be extra cost


Hondas are however cheap to mod due to the number of mods and cars out there


K20A forever 220 hp @8000 160 lb·ft @4500 those are some nice NA numbers right here I really want the FT86/FRS/BRZ to at least match these figures


HP to BHP usually results in a couple hp difference but its not enough to agure about

FIXED!!!

[Type[R]+]

Originally Posted by Dave-ROR

HP as referred to in the US is SAE net, which is basically BHP except with the accessories (parasitic drag inducing components, like PS pump if belt driven, water pump if belt driven, alt, etc), intake, exhaust, etc. Neither include transmission losses (trans/diff/etc).

cheers man. :happy0180: