My Z3 has a 2.0 6 cyl engine how difficult would it be to put a 3.0 in its place or a 2.8 , is the gearbox the same ? diff and axles?
You have a M52TUB20 duel VANOS engine now. It would be easier to fit a duel VANOS M52TUB28 engine at they use the same DME (engine computer). You would need to get the DME reprogrammed for the 2.8 engine. Not a big problem as there are standard programs available, just need to find someone who can do it for you. Note that there are two types of 2.8 L engine around. The M52B28 which is single VANOS and the M52TUB28 which is duel VANOS, get the right engine.
The M54B30 (3.0 L) engine uses a different DME that is more integrated into the car's systems. This makes it a harder transplant.
Running the M54B30 on your existing DME can be done, but needs a custom tune. Its hard enough to find someone to do a standard reprogram let alone someone to do a custom tune.
Both engines will bolt up to your transmission. You will have a small case diff in your car. Both the transmission and diff are rated for lower torque levels than the 2.8 L engine. To ensure that you have a long term reliable car, you may need to consider changing them to higher rated units. A medium case diff with associated axles (half shafts) would be needed.
I understand that the car modification laws are getting tight in Oz, best you check out what you are allowed to do and what needs certification.
Last edited by Muzz258; 01-12-2018 at 04:28 PM.
1999 2.8L Z3 Roadster,
2000 3.0L Z3 Roadster,
There is only one thing more pleasurable than working on a Z3, that's driving it top down on a fine day.
Thanks for that very helpful.
*Can custom tune MS42 to run M54B30.
-Abel
- E36 328is ~210-220whp: Lots of Mods.
- 2000 Z3: Many Mods.
- 2003 VW Jetta TDI Manual 47-50mpg
- 1999 S52 Estoril M Coupe
- 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
- 2019 M2 Competition, self-tuned, 504whp
- 2016 Mini Cooper S
A lot of effort to add 800cc
Ever thought of just buying a larger capacity and selling the 2.0
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Pretty easy to swap in a V10 S85 from what I've heard. It's basically plug and play
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Abel is a wizard. His powers should be respected and perhaps even feared.
But seriously, if I ever end up doing an M54B30 swap, he'll be the person I consult.
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