M535i vs 635csi

[miafori]

Do the E28 M535i and M635csi use same engine or not? Which one of two have twin cam or single cam? What is the difference between E28 535i and M535i?
I am searching for a proper 3.5 engine for my E30...

[Gamite]

I think all M30 engines are single cam, only the M5 engine had twin cams. I dont know which is best, but the later model M30's that came in E34's have larger piping and were a true 3.5L some E28's were only 3.3 I believe. (3.3/3.5 engine)

[miafori]

I know a official version of E28 as M535i. Is it same as E28 M5? or are they different models?

[Gamite]

Different models, E28 M5 has an S38 engine, and the M535 is still using an M30 engine.

I think most of the M535's mods are suspension mods to match the M5's suspension, much like the M540 here in Canada.

[///BMW]

i understood that the MAF was more restrictive on the e28 models, then it was change to a less restrictive MAF on the e34 models.... but you can order a race MAF from www.bmpd.com and go with an e28 m30, and have more hp then the stock e34 m30

[riseosiris]

The US E28 M535I had a higher compression version of the M30 than the standard 535i. If I remember correctly it made an extra 20 or so hp...nothing like the the real E28 M5 which had the twin cam S38 as mentioned above.
-Lloyd