2.5 M20 Head on Eta Block?

Discuss general engine, turbo and supercharger conversions in this section

Moderator: martauto

Post Reply
Project_E30
E30 Zone Camper
E30 Zone Camper
Posts: 1107
Joined: Thu Jan 13, 2005 11:00 pm

Wed Apr 05, 2006 1:34 pm

2.5 M20 Head on Eta Block, will this work??


Any details would be great!
User avatar
jimmybmw
E30 Zone Newbie
E30 Zone Newbie
Posts: 36
Joined: Thu Sep 22, 2005 11:00 pm

Wed Apr 05, 2006 4:56 pm

only if it is latest eta.


first eta's only compatible with 320i/323i head.
Project_E30
E30 Zone Camper
E30 Zone Camper
Posts: 1107
Joined: Thu Jan 13, 2005 11:00 pm

Wed Apr 05, 2006 5:00 pm

jimmybmw wrote:only if it is latest eta.


first eta's only compatible with 320i/323i head.
JonB says the opposite that I need an early Eta block.



HAS ANYONE DONE THIS ALREADY???!!!
User avatar
jimmybmw
E30 Zone Newbie
E30 Zone Newbie
Posts: 36
Joined: Thu Sep 22, 2005 11:00 pm

Wed Apr 05, 2006 6:23 pm

i'm building one at the moment.

my setup is a second version eta with polished 325i head, schrick cam shaft, inlet manifold with bigger and polished ports, M30 injectors and ECU, alpina 6-branch, remapped, shaved head for higher compression, x-rohr so you can measure emission on 6 cilinders...

trust me, it's not just a bolt on.

there are a lot of sites, even in english, that have lots of info. just use google.

check out this one for example. http://www.strictlyeta.net/
User avatar
Finny
E30 Zone Newbie
E30 Zone Newbie
Posts: 106
Joined: Mon Jan 10, 2005 11:00 pm
Location: Stoke on trent
Contact:

Wed Apr 05, 2006 6:42 pm

pardon my lack of knowledge but what car is the eta block from?
Image
m-dtech
Unapproved Trader caution
Posts: 2068
Joined: Thu Sep 01, 2005 11:00 pm

Wed Apr 05, 2006 6:47 pm

i was under the impression that the 731 head was what was required because the 2.0 has flat pistons...
Martinaston
E30 Zone Addict
E30 Zone Addict
Posts: 3749
Joined: Mon Mar 14, 2005 11:00 pm
Location: London

Wed Apr 05, 2006 7:18 pm

OK so if iyou use the 320 head on the 2.7 block what is the compression ?

And what would it be with the 325 head ?, bearing in mind that the 325 pistons protrude from the block unlike the 2.7. so i assume it would be lower :?
There is NO nucleus.
Project_E30
E30 Zone Camper
E30 Zone Camper
Posts: 1107
Joined: Thu Jan 13, 2005 11:00 pm

Wed Apr 05, 2006 7:32 pm

Finny wrote:pardon my lack of knowledge but what car is the eta block from?
Off topic: Do you have any more pics of your car as I haven't seen many with Mims fitted.

If you could post or e-mail me a few that would be great.

Cheers
Post Reply