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  1. #1
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    1 out of 1 members liked this post. Yes Reputation No

    G20 330i b48 Motor swap and ecu software

    I have a g20 330i b48, its has the early 2019 ecu that can be flashed and is flashed with stage 2 bm3.
    Even though bootmod3 allows you to tune yourself there are tables where values arenít given. For example boost control thrust(kw) x axis value is given . But y axis i a ? ( literally a question mark and some other maps its a -)
    Suggest good software to tune the ecu myself. I am learning to tune and want to experiment with the b48.
    my plans are learning with b48 and when i know everything then swap a b58.
    can i put a different ecu in my car?

    my goals: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?

  2. #2
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    Moved to B48 section.
    991.2 3.0 headers for sale: Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

  3. #3
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    You want want to look into EcuTek's software.

    Also, nobody knows the B48 limit as most tune B58's. We can assume ~500 whp is in the range of capability but I don't know who has reached that level yet.

    It's uncharted territory.
    991.2 3.0 headers for sale: Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

  4. #4
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    They gave the Mini Cooper b48 302 ho a re enforced crank and bigger main bearings just for the extra 50 hp. Should I go for forged internals just in case?

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