RR Graph of M52 with M50 inlet.

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  1. RR Graph of M52 with M50 inlet. 
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    This thread is a run on from the 'RR Graphs' threads, where Emaps posted a RR Graph for an M52 engine with the M50 manifold: http://www.bimmerforums.co.uk/forum/...ost521194.html

    Emaps - Is that Flywheel or wheel horse power ?

    Thanks,
    Ferret !
     
     

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    i reckon is the bhp, it's way too high to be whp. 244 - that's M3 whp. btw, what was the whp on that 328i?
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    Ferret (24-10-2010)

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    I agree with Gabriel, that figure is at the flywheel. I recon it would be about 175bhp at the wheels...
     
     

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    Ferret (24-10-2010)

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    175bhp at the wheels ?

    So when BMW say that my 328i, for example, has 193bhp... They are actually stating at the flywheel ?

    Stuff me sideways ! I always thought it was at the wheels !
     
     

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    yes mate, all manufacturers state the flywheel power (BHP) for cars. the unit itself (BHP) lets you know they're talking about "brake horse power".

    "Brake horsepower (bhp) is the measure of an engine's horsepower without the loss in power caused by the gearbox, alternator, differential, water pump, and other auxiliary components such as power steering pump, muffled exhaust system, etc. Brake refers to a device which was used to load an engine and hold it at a desired RPM. During testing, the output torque and rotational speed were measured to determine the brake horsepower. - wikipedia

    WHP (and the most important, imo) is the power that actually reaches the wheels, so the power that the car is actually putting down.
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    Good stuff, thanks mistreku

    So whats the WHP of a standard 328i, do you know ?
     
     

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    mistreku (31-10-2010)

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    not too sure, but i reckon it should be between between 155-160whp. again, just an assumption, not quite sure of what they're putting down stock. maybe someone dynoed a stock 328i?
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    Quote Originally Posted by Ferret View Post
    Good stuff, thanks mistreku

    So whats the WHP of a standard 328i, do you know ?


    Its roughly 25-30% less that flwheel horse power,you loose power from transmission,prop,diff and tyres

    FWD cars loose approx 15-18% as the power has less to travel,but who cares,FWD is rubbish
    1998 323i sport touring. HSD coilovers,M3 lsd,
    style 5 alloys,M52B28 conversion on M50 inlet manifold. 220bhp and 200lb/ft mmmmmmm lovely
     
     

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    If you have a FWD car, you can drive backwards - Instant RWD
     
     

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    Quote Originally Posted by Ferret View Post
    If you have a FWD car, you can drive backwards - Instant RWD
    And pretend to be Captain Scarlet

    http://www.spectrum-headquarters.com...carlet_new.jpg
    1998 323i sport touring. HSD coilovers,M3 lsd,
    style 5 alloys,M52B28 conversion on M50 inlet manifold. 220bhp and 200lb/ft mmmmmmm lovely
     
     

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