OBD1 M54/M52TU swap as a M50b25

[CMBusch]

We had a m52b28 in there prior and the m54b28 makes a little more midrange power, little less top end.... likely from the slightly different head ports.

The cams, manifolds, electronics were all re-used; mainly because of lack of time —>using easiest available resources (this m54b28)

Gotcha, makes sense. For some reason I think frankenmotors are super cool since the combinations never came from the factory.

[Wanganstyle]

Gotcha, makes sense. For some reason I think frankenmotors are super cool since the combinations never came from the factory.

Need is the best forced innovation; it s a great combo for someone looking for a replacement engine as the older m52/m50 engines are quite often tired. Much easier to come across a complete good running e46 for cheap nowadays or at least the m54

Frankie is headed to Sonoma Friday!

[CMBusch]

Need is the best forced innovation; it s a great combo for someone looking for a replacement engine as the older m52/m50 engines are quite often tired. Much easier to come across a complete good running e46 for cheap nowadays or at least the m54

Frankie is headed to Sonoma Friday!

Agreed. My points exactly. Thankfully 2 out of my 3 M50's that I have are in decent shape. This also gives M54s a future purpose, rather than being turned into a wine bottle holder.

Let us know how it goes!

[Wanganstyle]

Agreed. My points exactly. Thankfully 2 out of my 3 M50's that I have are in decent shape. This also gives M54s a future purpose, rather than being turned into a wine bottle holder.



Let us know how it goes!

Frankie did 2:07 at thill east in testing..... Sonoma should be great.

[BudTendy]

Picked up an M52TU, with an interest in trying out this swap. I was curious on how you closed the gap near the exhaust side of the vanos cover?

Sorry to bring up an old thread

[Wanganstyle]

You can do whatever you want. It’s your car

[hoveringuy]

I loved my M54. Megasquirt3, M50 intake, Schrick cams and headers, it put down 250whp and was an incredibly easy swap compared to the N52.

[moatilliatta]

Old thread bump FTW. It means you’re actually reading and searching.