Info on swapping engines

Jahmez

Member
 Scotland
Hi, not been here much in the last couple of years, if not longer, but I have a question. My 2.0 roadster has had lots of TLC over the last few years, spec's with lots of M bits, including the suspension, from new, I've slowly but surely getting her ready for the next 100,000 miles. After spending last year getting the suspension and springs sorted, timing chain replaced, vanos overhauling, rocker cover replaced etc she is running beautifully, A full respray with genuine BMW wings on all four corners, new windscreen, and a full rust preservation are all on the calendar for next year. But, and here is the question, has anyone on here swapped a BMW engine to one of another manufacturer? I can hear the sharp intakes of breath as well as the outrage of moving away from Bavarian engineering but, I love my e85 primarily for the way it looks, feels, and drives, not because of the badge. Coming from Fireblade and GSXR's, I've done the high speed stuff. Been faster than many but the roads are just too full of idiots, and cyclists to facilitate top end speeds. I always the thrill of, late breaking and powering out of bends, but I do love high revving engines and the scream.

I'm looking at the possibility of fitting a Honda Type R engine to my e85. I realise that the chances of coming across someone who's already done this are microscopic, but has anyone changed from Beemer to something else?
 
Jingle had a 2 litre facelift engine let go in his car, so he fitted a 3 litre N52. The only other one I can think of was years ago when someone fitted an S85 V10.

How high revving do you want? The S54 in the M revs to 8,000rpm and the S65 V8 revs slightly higher I think!
 
The only swaps I know of are to other BMW engines (V10, V8) or to a small-block V8.
I was at a Ford Owners show last weekend and saw this. 5.1ltr V8 fitted into a rather nice Capri. The reason I mentioned the Type R engine is that I want to keep the weight back and would prefer a 4 cylinder block, but I'm reading that cost involved would be silly.
I've always liked the way a well set up 2.0i can easily keep up with the straight 6's through the bends. Even with tired M spec suspension, before I changed to Bilstein B8 Supersports and lowering springs, I easily kept up with the larger, more powerful cars.
As for revs, I realise this is a bit different from fitting a Hayabusa engine in a Smart Car but I'd just want to hear it rip now and again.. 8,000?
 

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I imagine the physical fit might not be too difficult, but the electronics could be a nightmare with a non-BMW engine!

The only high-revving 4 cylinder BMW engine I can think of is the S14 from the E30 M3, but given what those M3s are worth you'd need a big wallet to get one of those. Personally I've always liked the straight 6s, not least because they are one of the Z4s unique features.
 
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