Hiya
Could you guys pls tell me what the differences are in a m50b25, and a m52b28 heads pls
also, are the cams different, and can you put a m52 head on a m50?
if I was to put 2.8 pistons in a m50 block, which would be the best head to use for a turbo project
Thanks
Difference in head?? & turbo question
Moderator: martauto
BMW E30 2.0 Convertible (M52B28)
BMW E30 2.0 2 Door (M20B28 Turbo project to start)
BMW E36 328i Sport (M52B28 Turbo Project)
http://www.e30zone.net/modules.php?name ... ic&t=68663
BMW E30 2.0 2 Door (M20B28 Turbo project to start)
BMW E36 328i Sport (M52B28 Turbo Project)
http://www.e30zone.net/modules.php?name ... ic&t=68663
pistons wont fit without some major boring out from 75 mm bore toQuaser wrote:Hiya
Could you guys pls tell me what the differences are in a m50b25, and a m52b28 heads pls
also, are the cams different, and can you put a m52 head on a m50?
if I was to put 2.8 pistons in a m50 block, which would be the best head to use for a turbo project
Thanks
84 mm
According to realoem - both pistons are 84mm
BMW E30 2.0 Convertible (M52B28)
BMW E30 2.0 2 Door (M20B28 Turbo project to start)
BMW E36 328i Sport (M52B28 Turbo Project)
http://www.e30zone.net/modules.php?name ... ic&t=68663
BMW E30 2.0 2 Door (M20B28 Turbo project to start)
BMW E36 328i Sport (M52B28 Turbo Project)
http://www.e30zone.net/modules.php?name ... ic&t=68663
-
ross_jsy
- Married to the E30 Zone

- Posts: 7307
- Joined: Sun Jul 12, 2009 11:00 pm
- Location: Jersey, C.I.
Ignore anything Rich says, he is the zone retard.
You wanting to build a stroker turbo? I would just use a standard m50 to be honest. They take 500hp with nothing more than a MLS and ARP head bolts, if it pops, stick in another £300 m50. A stroker would cost a fair whack more.
You wanting to build a stroker turbo? I would just use a standard m50 to be honest. They take 500hp with nothing more than a MLS and ARP head bolts, if it pops, stick in another £300 m50. A stroker would cost a fair whack more.
thanks - so std m50 bottom end, and std head then - no need for double intake cams or anything like that??
BMW E30 2.0 Convertible (M52B28)
BMW E30 2.0 2 Door (M20B28 Turbo project to start)
BMW E36 328i Sport (M52B28 Turbo Project)
http://www.e30zone.net/modules.php?name ... ic&t=68663
BMW E30 2.0 2 Door (M20B28 Turbo project to start)
BMW E36 328i Sport (M52B28 Turbo Project)
http://www.e30zone.net/modules.php?name ... ic&t=68663
-
ross_jsy
- Married to the E30 Zone

- Posts: 7307
- Joined: Sun Jul 12, 2009 11:00 pm
- Location: Jersey, C.I.
No, would imagine there are some gains to be had from purpose designed turbo cams but it's expense that isn't really needed.
Have a read through Craig's build thread in the turbo section to give you an idea of a good set up.
Have a read through Craig's build thread in the turbo section to give you an idea of a good set up.
i would have thought you would know the difference between bore and stroke since you seem to be so good at stroking it....rich318i wrote:Quaser wrote:thanks - so std m50 bottom end, and std head then - no need for double intake cams or anything like that??
your in a world of problem and yes the bore is 84mm my mistake
E30 325is with M20B31
Me too i was crossed eyed at the time seeing the postreggid wrote:i would have thought you would know the difference between bore and stroke since you seem to be so good at stroking it....rich318i wrote:Quaser wrote:thanks - so std m50 bottom end, and std head then - no need for double intake cams or anything like that??
your in a world of problem and yes the bore is 84mm my mistake

