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Thread: i need some help with the math!

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  1. #8
    Join Date
    Jul 2006
    Location
    Sunnyside, NY
    Posts
    1,197

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    Math forthcoming....

    2000 BMW 323 Ci

    2.5L hp I6
    chp 170 @ 5500 RPM
    ctorque 181 @ 3500 RPM
    Bore X Stroke 3.31 X 2.95
    Compression Ratio 10.5:1

    https://ams.scca.com/netForum/eweb/d...%20Process.pdf

    170 * 1.25 (IT gains) * 0.82 (driveline loss RWD) = 174.25 whp * 12.9 lbs/hp (ITS multipler) = 2248 w/o adders or 2250

    Do you have excessively large brakes? It's a BMW, I would assume so, +100 (in your face!)... so 2350.
    Could there be a torque adder? maybe, if so then add another +100 (in your face... maybe)... so 2450

    no way.

    Let's try the other way around...

    3000 - 100 = 2900 / 12.9 lbs/hp = 225 whp...
    225 whp / 0.82 = 274 chp

    OR

    3000 - 200 = 2800 / 12.9 lbs/hp = 217 whp...
    217 whp / 0.82 = 265 chp

    Either I forgot to add something or you need to lots of luck ( I mean $).

    Confirmed that the 99-00 323is/i seems like the same car as your 323 Ci.
    Last edited by mossaidis; 05-20-2013 at 10:12 PM.
    Demetrius Mossaidis aka 'Mickey' #12 ITA NESCCA
    '92 Honda Civic Si
    STFU and "Then write a letter. www.crbscca.com"
    2013 ITA NARRC Champion and I have not raced since.

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