1996 bmw M3 evo, POWER RUN - Page 3

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    #21
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    Cool. It's a good experience to have and presumably he checked all your AFR's etc.

    I have never really looked into rolling roads that much but I should do really.

    That's a 33.6% drivetrain loss. I would have expected a bit less? What do other M3's put out at the wheels?

    Ian
     
     

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    #22
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    Quote Originally Posted by steve323iseWitney View Post
    Yeah, I'm thinking this could be. Is there anyway I can find out?
    Just check with the rev limit is set at, most remaps will raise it.
     
     

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    See the clip.
     
     

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    Quote Originally Posted by steve323iseWitney View Post
    See the clip.
    You should hear them when they have a de-cat, Induction kit and Scorpion exhaust

    My 318is Roared

    I look forward to getting the coupe rolling road tested now the M3 lump is fitted
     
     

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    Quote Originally Posted by steve323iseWitney View Post
    See the clip.
    Sweet video Steve. Im well impressed
     
     

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    #26
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    very nice mate, thats good power as well.
    hope mine makes the correct power.
     
     

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    Cool video m8y, sounds wicked
     
     

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    #28
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    Sorry to say this but i have had a quick look into it and the drivetrain losses should be around 17%. From the looks of it a healthy evo should be putting out around 260 at the wheels which is the figure you mentioned earlier.
     
     

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    #29
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    Quote Originally Posted by Ian S View Post
    Sorry to say this but i have had a quick look into it and the drivetrain losses should be around 17%. From the looks of it a healthy evo should be putting out around 260 at the wheels which is the figure you mentioned earlier.
    So would this mean I'm looking @ 287 flywheel hp??

    Before starting the power run they said that they'd expect a WHP of 235, but in there experience this wouldn't be achieved.

    I was assuming power loses lost through drive train would be measured rather that calculated? surely to assume a standard loss of 17% is a little inaccurate? Although a loss of 33% does sound high?
     
     

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    #30
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    Losses on RWD'd are meant to lose on average between 15-20%. 17% is commonly quoted for BMW's. 4WD's tend to be 25-30%. Over 30% would be high for a 4WD.

    The calculation figures can be manipulated by dabbing the brakes, fiddling the intake or ambient temperature etc. Rolling roads are notoriously unreliable. That's why you are safer using the ATW figures.

    Ian
     
     

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