E36 328i Rotrex

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  1. E36 328i Rotrex 
    #1
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    _SYC_'s Car Details
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    328i M
    Year of Manufacture:
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    Hey all,

    My 328 is supercharged using a rotrex charger. It's been dyno'd at 290bhp making around 1 bar of boost. It's been done with no oil cooler, no intercooler, bov or remap.

    All that I can figure was done to adjust the fueling was to solder 2 resistors into the MAF to trick it.

    I'm just wondering if I can re-do it and if I should be thinking bigger injectors and remaps and intercoolers and oil coolers too. I realise it's been running without all this but I'm not sure how good it is for the engine.

    I'm not looking to get more power just ensure I don't end up with a costly lump of scrap.

    Cheers
     
     

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    #2
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    TheEnd's Car Details
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    540
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    1 bar is pretty high for a charger, usually they would be somewhere around 4psi for no intercooled versions, and then intercoolers would be on the high power ones at 7-8psi.

    Just getting a 1 bar pulley and stopping it from slipping would be a problem.
     
     

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    #3
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    Model of Car:
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    I was going from memory but now you say 7-8 that sounds more like it. wasn't as low as 4
     
     

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    #4
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    TheEnd's Car Details
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    That would be about right, especially with the power output.
    Low pressure 3-4psi chargers will often just fit on without any problems, up to about 7-8psi is usually the max that people will go.

    You could try an adjustable fuel pressure regulator as a quick fix.
     
     

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