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  1. #76
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    It's ok. This is a proper M motor not just an N55 with a different tune.
    good to see you approve this... i know you were skeptical as were many others... I am just pumped to know e90 m3 will be 25k soon lol ... than ill ditch my e92 335 for one...
    09 6AT 335i Coupe M-Sport - SOLD
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    Looking for a n54 project e90/e82

  2. #77
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    Click here to enlarge Originally Posted by ChuckD05 Click here to enlarge
    good to see you approve this... i know you were skeptical as were many others... I am just pumped to know e90 m3 will be 25k soon lol ... than ill ditch my e92 335 for one...
    The E9X will drop but not as hard as people think.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  3. #78
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    I think it comes with iridium spark plugs from factory

  4. #79
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    Click here to enlarge Originally Posted by TheDeliverator Click here to enlarge
    Any ideas why M division wouldn't have gone from 3.0 L to 3.2 or 3.3 L?

    Hope it's not fuel economy... This is an M engine damnitalltohell!

    It's not like e9x M's weren't selling in the last year of production due to fuel economy.
    they used a bigger cylinder spacing to be able to use a bigger bore and shorter crank. no doubt to give themselves room to increase the size in due course. the factory wont want to be upping boost too much so cubic inches will probably increase at some point

  5. #80
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    Click here to enlarge Originally Posted by TheDeliverator Click here to enlarge
    Any ideas why M division wouldn't have gone from 3.0 L to 3.2 or 3.3 L?
    Because power output wouldn't change, it could actually even decrease. Less displacement lets the turbos work more efficiently, increase it, and they will run out of breath as they have to push more air to reach the same equilibrium pressure as they're filling a larger volume.

  6. #81
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    Click here to enlarge Originally Posted by Dietcoke Click here to enlarge
    Because power output wouldn't change, it could actually even decrease. Less displacement lets the turbos work more efficiently, increase it, and they will run out of breath as they have to push more air to reach the same equilibrium pressure as they're filling a larger volume.
    Your premise is working on the assumption that the same size turbos would be used for any displacement and therefore is flawed.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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  7. #82
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    It is interesting to note that the bore and stroke are 89.6mm and 84.0mm respectively. Compare this to the bore and stroke of the N55 inline-6 which is at 84.0mm and 89.6mm respectively. That is not a typo, the N55 and S55 share the exact same 2,979 cc displacement although their bore and stroke figures are reversed.
    I think it must be a typo, actually. You get 3177cc from an 89.6mm bore 84.0mm stroke:
    http://www.bgsoflex.com/cgi-bin/disp...de=Millimeters
    http://www.bgsoflex.com/cgi-bin/disp...de=Millimeters

  8. #83
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    ^ that's the kinda thing i'm confused about with the S55... there's no ACCURATE specs released since hte car's been released :/
    boop

  9. #84
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    Click here to enlarge Originally Posted by rwalker Click here to enlarge
    I think it must be a typo, actually. You get 3177cc from an 89.6mm bore 84.0mm stroke:
    http://www.bgsoflex.com/cgi-bin/disp...de=Millimeters
    http://www.bgsoflex.com/cgi-bin/disp...de=Millimeters
    You are right, it has to be a typo. Disappointing though but we'll update it. The BMW early information made this motor sound much more exciting.

    I'll edit in a bit.
    Chrome Space Bar Issue: http://www.boostaddict.com/showthrea...338#post738338


    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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