1998 E36 Z3 2.8 performance mods

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  1. 1998 E36 Z3 2.8 performance mods 
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    Hi,

    We have a facelift 2.8i std z3. I was wondering if there is a good route to follow ro release a bit more performance?

    Anyone got some experience on these models? I am uncertain which engine is fitted to the car, M50/M52 etc...

    Thanks
    Dave
    Remember..... The brussels sprout is the fruit of the bonzai cabbage tree!
     
     

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    Quote Originally Posted by altreed View Post
    Hi,

    We have a facelift 2.8i std z3. I was wondering if there is a good route to follow ro release a bit more performance?

    Anyone got some experience on these models? I am uncertain which engine is fitted to the car, M50/M52 etc...

    Thanks
    Dave
    I think the Z3 uses a twin vanos setup, so the M50 mod isn't applicable

    You're stuck with just a CAI kit and remap unless you want to spend big money.

    I'd also suggest maybe change the diff to a lower ratio, if that's an option?
    "So give me one more platinum plaque and rap, you can have it back." - Dr Dre

    Spinnin' on digital 22's!
     
     

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    Do you have the single vanos engine, or the dual vanos? These changed in 1998.

    the single vanos version has more tuning options.

    Post up or pm me a photo of your engine if you aren't sure which version you have.
     
     

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    mikaveli (05-03-2010)

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  7. What a winkle!!! 
    #4
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    My Typo, it is a 1999 model, so I assume it is the twin Vanos
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    Quote Originally Posted by altreed View Post
    My Typo, it is a 1999 model, so I assume it is the twin Vanos
    if it's a facelift it will almost certainly be an M52TU (twin vanos engine).. as these were appearing in some of the later pre-facelift cars as well..

    there are still similar options available to the M50 manifold upgrade on the M52 - iirc the mod for the M52TU uses the manifold from a 330 with modified throttle body.. and the onyl company that i've heard of that fits and tunes this package is CA Automotive.. be prepared and sit down when you call them as I don't think it's cheap! LOL!...

    EDIT: for reference - my engine is the single vanos 2.8: http://www.bimmerforums.co.uk/forum/...ost328539.html

    if your one has the flatter intake manifold instead of the curved one shown above then you have the M52TU... unless ofcourse someone has already carried out an M50 manifold conversion! LOL!!!

    you can also put your last seven digits of your VIN (i.e. LBXXXXX) into here:

    http://www.bmw-z1.com/VIN/VINdecode-e.cgi

    and it will confirm the engine for you!..

    HTH

    * 2016 BMW M135i LCI (F20): current
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    I think this is the adaptor plate for the throttle body you need:



    http://www.turnermotorsport.com/html..._ID=TEN9990850

    * 2016 BMW M135i LCI (F20): current
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    altreed (09-03-2010)

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    So, the suggested mods are :-

    330i Inlet with adapter plate
    CAI
    remap

    - would a supersport exhaust help?? or is the std one pretty good anyway - seems quiet.

    What sort of output would that see, I think std is 197bhp. I presume the power delivery/drievability would be better with said mods?

    Thanks
    Dave
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    Hi,

    Have you considered supercharging it? The kits definitely aren't cheap, but it's not stupid money. Maybe worth looking at if you're serious about higher performance.

    Leon
     
     

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    Thanks,

    Has anyone fitted a supercharger to a z3 2.8? Any idea of cost?

    Thanks
    Dave
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    Quote Originally Posted by altreed View Post
    Thanks,

    Has anyone fitted a supercharger to a z3 2.8? Any idea of cost?

    Thanks
    Dave
    not sure what options are available for the M52TU engine... but it's the same as used on other BMW's in the range so might be worth checking on the forced induction section here as I'm sure someone must have done it before..

    To give you an idea of cost and the performance potential of a supercharger on the normal M52B28 engine though -the Eurosport twin screw kenne bell system will give you around 400 bhp with about 280 lb.ft of torque almost horizontally across the board - the cost is around £4k plus shipping and fitting.



    http://www.eurosporthighperformance....ercharger.html

    If you're going down the supercharger route then I would suggest a trying to find a twin screw system if possible - the centrifugal types as offered by VF and AA tend to blow hot at higher boost levels and are less efficient at producing boost than a twin screw system.

    * 2016 BMW M135i LCI (F20): current
    * 2016 Mercedes Benz GLA 200d AMG Line (X156): current
     
     

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