m52tub28 double vanos in e30? What parts from donor car?

[dirtysix]

Also, if you're considering a m52tu forget it and go straight to the m54.
The m54 has a mid range punch and a top end that the m52tu cant get close to.
I prefer the m52 with m50 manifold to the m52tu.

[fenixsz]

Hmm, tough choice!

M52 withe steal liners will be best choice I think!

[Johnny Redline]

so is converting the m52 dual vanos to OBD 1 not possible

[Wh33lhop]

so is converting the m52 dual vanos to OBD 1 not possible

It's possible if you want to either delete the exhaust-side VANOS or use a standalone VANOS controller. OBD-I ECUs do not support dual VANOS.

[hoveringuy]

I ran my M54 straight OBD1 for a few months until I got the VANOS controller working. I used an rpm activated switch for the DISA.

It works fine.

[brooin8]

Are the M52TUB28 and M52B28 Cylinder heads interchangeable?

[10Toes]

Nope