M50B20 into M20B20?

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Jamus
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Post Thu Oct 11, 2007 10:47 pm

Can a 1995 M50B20 engine be fitted into a 1988 320i without too much trouble? What parts from the donor car would be needed?

Cheers

Jam
BadDave
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Post Thu Oct 11, 2007 10:54 pm

Yeah it can be done
everal on here hae or are carrying out that conversion at the mo
Afraid I don't have any details on it for you though
Alpina B10 3.2L #187 (1 of 64 brought into the UK)
2.8L turbo build thread(work in progress)
http://www.e30zone.net/modules.php?name ... 27#1268227
DanThe
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Post Thu Oct 11, 2007 11:36 pm

There is a certain thread that holds all the info you need.......

Its at the top of the page winkeye
Jhonno
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Post Fri Oct 12, 2007 2:22 am

ok.. if you are going thru the trouble of the 24v swap, it makes no sense whatsoever to fit the b20..
Got cable ties? Get diffin..

Arch roller for hire.

www.zeroexhausts.co.uk

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ste
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Post Fri Oct 12, 2007 11:24 am

Agreed.
BMracing
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Post Sat Oct 13, 2007 12:21 am

Aye, may cost a bit more for the engine itself, but 2.5 is surely the only way to go.
Max

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brian325i
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Post Sat Oct 13, 2007 12:25 am

agree 100% with the above 8)
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S50 is alive :-)
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Jamus
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Post Wed Oct 17, 2007 10:13 pm

Yeah, would love to but I'm only 19 and wouldn't stand a chance of getting insured on a 2.5 mod.
So I wanna put the B20 in so that it can be a bit better now and easier to fit the 2.5 when I can get insured.
ricey46
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Post Thu Oct 18, 2007 2:30 pm

Can you not go thru any of you parents for Insurance?? Or Classic Insurance?? Thats what I've done and I'm thinking of the M50B25!! winkeye
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BMracing
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Post Thu Oct 18, 2007 2:46 pm

Jamus wrote:Yeah, would love to but I'm only 19 and wouldn't stand a chance of getting insured on a 2.5 mod.
So I wanna put the B20 in so that it can be a bit better now and easier to fit the 2.5 when I can get insured.
Personally I would just stick with the m20 for now then mate, its still got that lovely 6 pot sound and smoothness, and won't really be a lot slower than an m50b20. Go all out on a m50b25 when you can insure it. It will be a lot less hassle than 2 engine swaps, even if the last 2 are similar.
Max

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Gunni
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Post Thu Oct 18, 2007 3:10 pm

Do it, then later converting into a M50B25 will be a piece of cake.
you can use the same wiring harness for both M50 engines,
even the same ecu, just have to swap the chip for a B25 one,
same transmission and so on,
With great challenges comes great engineering.

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Toby_Unna
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Post Thu Oct 18, 2007 6:14 pm

^^ agreed

quick job to swap the 2.5 in once the hard work is done
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