2.8 question for andyboy
Moderator: martauto
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dave525
- E30 Zone Regular
- Posts: 427
- Joined: Mon Feb 21, 2005 11:00 pm
question for andyboy and anyone else who might know.read the article in total bmw on 2.8 m20 engines.is it feasible to use a 2.0 head and rods,2.8 crank,eta pistons in a bored out 2.0 block with 2.5 inlet manifold and ecu.obviously better to start with a 2.5 but i have a 2.0.also can you tell me where to get a 2.8 bottom end and suitable pistons.i was wondering as you said in the article people are now using 2.0 heads on 2.7 builds. cheers
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maxfield
- Old Skooler
- Posts: 15186
- Joined: Sat Nov 26, 2005 11:00 pm
- Location: Mansfield
You could use 2.0 but you would be restricting power instead of using a 2.5 head as it has bigger valves
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Andyboy
- Alpina Colada
- Posts: 12578
- Joined: Mon Sep 11, 2006 11:00 pm
No! The Eta pistons will poke out of the block wheras the 325i ones are a perfect job - might as well do it properly!dave525 wrote:question for andyboy and anyone else who might know.read the article in total bmw on 2.8 m20 engines.is it feasible to use a 2.0 head and rods,2.8 crank,eta pistons in a bored out 2.0 block with 2.5 inlet manifold and ecu.obviously better to start with a 2.5 but i have a 2.0.also can you tell me where to get a 2.8 bottom end and suitable pistons.i was wondering as you said in the article people are now using 2.0 heads on 2.7 builds. cheers
The 2 litre head on a 2.7 works because you are using a bottom end ready built from BMW. Add a longer stroke crank to an Eta and the pistons come out of the top of the block by 3mm.
Just ring around the breakers for a shagged 2.8 M52, FAB might have one.