1994 E36 318 M43 supercharger questions

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  1. 1994 E36 318 M43 supercharger questions 
    #1
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    318i's Car Details
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    been wondering if the above was to be supercharged at low pressure (sub 4psi) would the charger go between air filter and maf, or between maf and manifold?
    what would be done about the crank case breather (the pipe that goes into the pipe between maf and manifold), before or after the charger?
    do they need a pressure release valve/purge valve to release pressure when lifting off the accelerator the same as a turbo has?
     
     

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    Hello mate, the charger would need to go before the MAFM after the filter. If it goes after the MAF it'll underfuel i think. I'm not an expert but that's my understanding.

    I'm not sure what issues the MAF would cause as far as restricting air flow. IIRC there may be a MAF delete mod out there. And you'll need a clever ECU.

    All forced induction needs a pressure release valve.

    In all honesty mate, unless your getting the supercharger very cheap and doing the work yourself you may be looking at a money pit as i don't think the internals will hold up to much and on such a strangled engine sub 4 PSI is unlikely to do anything noticable.

    Just my opinion mate, as a project it sounds good fun though


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    supercharger goes AFTER the MAF and the air filter, ie between the manifold and throttle body.

    4psi is not really worth alot, you should really aim for 6psi min as the supercharger will take some power to drive from the engine
    Crankcase breather before the supercharger and throttle, but after the MAF
    and you will need a purge valve

    I have seen a few m43's done, have on look through the internet !!
     
     

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    Quote Originally Posted by markrnorton View Post
    supercharger goes AFTER the MAF and the air filter, ie between the manifold and throttle body.

    4psi is not really worth alot, you should really aim for 6psi min as the supercharger will take some power to drive from the engine
    Crankcase breather before the supercharger and throttle, but after the MAF
    and you will need a purge valve

    I have seen a few m43's done, have on look through the internet !!
    also would it not be cheaper to get a bigger engined car-for the price of a supercharger you could probably get some nice cars out there
     
     

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