e30 with m54b30

[Jean]

Link - http://www.e30tech.com/forum/viewtop...er=asc&start=0

There is video there too, check it out. :up:

[matt]

I wish to subscribe to that guys newsletter.

[Teaguer]

Nice soldering skills inside the DME .

But if its running who cares , right ? :D

And whats the deal with the crap intakes on those engines , is it possoble and are there gains to be had to switching to like a OBDI M50 manifold ?

[matt]

It's an excellent intake manifold.

[alexbaby88]

if the economics work for you, a stroker using the S52/M54 crank, 135mm conrods and M54 pistons will take your 2.5L M50 to 3.0L with unchanged 84mm bore and stroke lengthened to 89.6mm.

So basically an iron block M50B30.

[Jean]

Is s52 crank = m54 crank ?

[alexbaby88]

Is s52 crank = m54 crank ?

yes

11 210 007 260

[Jean]

yes

11 210 007 260

I am sorry if this has been covered before, what are the 135mm rods from ? Will the 260 crank fit any m5x block (including z3 block) ?

[alexbaby88]

I am sorry if this has been covered before, what are the 135mm rods from ? Will the 260 crank fit any m5x block (including z3 block) ?

IIRC S50, S52, M52B28 and M54B30 rods are all 135mm.

I believe the S52/M54 crank fits M50B25 and M52B28 (mainly iron blocked in USA, but alloy blocked for the Euros) blocks.

[So Live]

what kindov hp would we be looking at with the m54 rotating assembly but with all the m50 b/s? anyone know?

[Teaguer]

what kindov hp would we be looking at with the m54 rotating assembly but with all the m50 b/s? anyone know?

You would effectively have an S50 at that point minus the cams .
But most would install S50 (or better) cams anyway .

[Jean]

IIRC S50, S52, M52B28 and M54B30 rods are all 135mm.

I believe the S52/M54 crank fits M50B25 and M52B28 (mainly iron blocked in USA, but alloy blocked for the Euros) blocks.

Thanks!

Does anybody know if there is a reason why it wouldn't fit aluminum z3 block ?

[kylebes1]

It will fit the alloy block

[matt]

You would effectively have an S50 at that point minus the cams .
But most would install S50 (or better) cams anyway .

Not really, it would be a 3.0l stroker.

Longer stroke and narrower bore than a real S50.

[SpecM]

Not really, it would be a 3.0l stroker.

Longer stroke and narrower bore than a real S50.

-So... better or worse than an s50?