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Thread: Motor build

  1. #1
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    Motor build

    Hi, my g20 330i b48 has a stage2 bootmod3 flash. I wanted to upgrade the motor. I have a few questions:
    aim is 500 whp
    1: should i build the b48? Forged piston by je rods crank valve, retainer, studs crank etc and a bigger turbo or
    2: swap b58 and forged internals
    i am in the process of learning efi tuning.
    can you swap the ecu with an aftermarket ecu? Or will i have to tune with the factory ecu? I read ecu swap wont start motor due to anti theft settings in the new bmw cars.
    what is the best option for me?
    suggest good software to buy for tuning bmw. Bootmod3 is one but many things on there are confusing as they are not listed. For example x axis is rmp and y axis it say -?. When i am done learning tuning will i know what the axis stands for for a particular thing, for example lambda x axis it says ? Will i know after learning that the ? Is for either load or whatever.
    whats a good software for tuning bmw?

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    B58 swap makes little sense. Might as well go get a 340i
    991.2 3.0 headers for sale: Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

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    I would guess a B48 to be safe to 400-450whp seeing as the B58 seems to pop around 600-650whp.

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    B58 swap makes little sense. Might as well go get a 340i
    no 340i in India. Already bought the 330i and the taxes in India , I paid 80k dollars for the 330i

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    Click here to enlarge Originally Posted by Aqilg20 Click here to enlarge
    no 340i in India. Already bought the 330i and the taxes in India , I paid 80k dollars for the 330i
    Wow, didn't know they didn't sell it there. Well then I see why you are interested in a swap but you can get good power of the B48.

    Start with a tune? Then maybe upgrade the turbo.
    991.2 3.0 headers for sale: Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

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