325i or 320i?

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hellrotcompact
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Post Thu Oct 19, 2006 5:26 pm

Hey guys,

Just wondering if anyone knows JUST by looking at the engine in an E30 how to tell the difference between a 320i and a 325i as I believe they both have the same engine block but just one is bored out and the other isn't.

Are there any tell tale signs?

cheers
ed325i
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Post Thu Oct 19, 2006 5:30 pm

should have 2.5 stamped on the head near the exhaust manifold and the 325 normaly has an oil cooler.
The inlet manifolds are diffrent shape/size but someone could of put a 2.5 inlet on the 2.0
Cloggy Saint
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Post Thu Oct 19, 2006 5:35 pm

The intake manifold on a 2.5 is more rounded than on the 2.0
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hellrotcompact
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Post Thu Oct 19, 2006 5:35 pm

oh ok cheers mate, would the 320 have a stamp saying 320 then for this matter?

what is the difference in the look of the manifolds?
ed325i
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Post Thu Oct 19, 2006 5:40 pm

The 320 or 323 will have 731 on the head and the 325 will have 885.
hellrotcompact
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Post Thu Oct 19, 2006 5:40 pm

basically.....is this a 325i engine?

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ed325i
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Post Thu Oct 19, 2006 5:41 pm

yes it is.
hellrotcompact
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Post Thu Oct 19, 2006 5:42 pm

cheers mate....its the manifold that gives it away eh?
dazleeds
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Post Thu Oct 19, 2006 5:42 pm

but that car sure aint an original 325 :roll:
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ed325i
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Post Thu Oct 19, 2006 5:42 pm

Whats it in a touring ?
hellrotcompact
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Post Thu Oct 19, 2006 5:47 pm

why is it not a original 325 engine?
dazleeds
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Post Thu Oct 19, 2006 5:48 pm

hellrotcompact wrote:why is it not a original 325 engine?
the cars not original not the engine fella

well unless its a touring as all 325i saloons have the battery in the boot
sorry should have explained

Daz
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hellrotcompact
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Post Thu Oct 19, 2006 5:53 pm

oh ok cool thanks for telling me would this matter? And does it really make a difference?
Why would they put it in the boot? I know 5 series have it under the rear seats lol
dazleeds
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Post Thu Oct 19, 2006 5:55 pm

wont make any difference

it was in the boot to aid weight distribution on the car as far as i know
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hellrotcompact
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Post Thu Oct 19, 2006 5:57 pm

Thats what i thought but BM's are RWD lol so where is the sense in that
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Post Fri Oct 20, 2006 3:12 pm

BM are anal about 50-50 weight distribution