Stroker artical from total BMW magazine very informative

[EtaSport]

Okay, after reading this again, I'm tempted to build a 2.7 when I get my m20b25. I would run the eta crank and rods, with the 325i pistons and 885 cylinder head, then take 1.5 mils off the block deck and compensate with the adjustable cam gear. Anyone have comments, thoughts, suggestions, or know of anyone running this setup.

[SpecM]

-cast# 885 = b25i, correct?

[EtaSport]

yes, 885 standard i head. Isanity found an adjustable cam sprocket for around 120 from dblias. For the amount of money to build, its almost even worth it to get the bmp one for 275. I'm wondering what th CR would be. According to the site, by using 8.8:1 b25 pistons from the late model you would get around 9.5:1 with the correct deck height.

[SpecM]

-What block are you using? The eta/seta block is 3mm shorter, or so I hear, and your combo thus will not work...

[EtaSport]

-What block are you using? The eta/seta block is 3mm shorter, or so I hear, and your combo thus will not work...

Are you sure? I thought all m20 blocks are the same just different rod lengths. I would be using an i block anyway. In short im getting a complete m20b25 for free with 130k miles, but I can build this thing and just straight swap it for my current setup.

[Bimmerfanatik]

Be careful with buying an adjustable cam gear - I've heard from reputable sources they're a nightmare to tune with - one source even gave up and sold it.

[SpecM]

Are you sure?

-No but it is something I've heard.

[Insanity]

Be careful with buying an adjustable cam gear - I've heard from reputable sources they're a nightmare to tune with - one source even gave up and sold it.

Unless there's some special consideration with the distributor on the E30, I wouldn't imagine it's any different from other cars, which is to say not very hard. However, you'll need a chip that increases the rev limit to see any gains out of it on an E30, as the powerband already peaks near the rev limit anyway.