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Search: Posts Made By: jrw21
Forum: Induction 09-06-2010, 04:39 PM
Replies: 27
Views: 13,306
Posted By jrw21
the s52 pistons have a much larger "dome" than...

the s52 pistons have a much larger "dome" than the m42 pistons, shaving them 4mm will essentially negate that dome edge. The top center portion of the piston will not be shaved so it should have the...
Forum: Induction 09-02-2010, 09:59 PM
Replies: 27
Views: 13,306
Posted By jrw21
This project is going rather slow due to lack of...

This project is going rather slow due to lack of room in the garage.. But, I did do some more research/planning today. I am trying to determine the compression ratio so I decided to CC the head to...
Forum: Induction 08-25-2010, 01:16 AM
Replies: 27
Views: 13,306
Posted By jrw21
small_m, thanks for the info. The m42 head I am...

small_m, thanks for the info. The m42 head I am using is from a 95 m42 engine. So, it has 6mm valve stems. Just to make sure I just went out a put a caliper on the stem and it checked out to be just...
Forum: US and North America 08-22-2010, 11:17 PM
Replies: 6
Views: 1,320
Posted By jrw21
Nice, price. Unfortunately the centerbore is...

Nice, price. Unfortunately the centerbore is wrong for e36 or I would be interested. 5 series 74.1mm and 3 series is 72.56mm.
Forum: Induction 08-21-2010, 07:16 PM
Replies: 27
Views: 13,306
Posted By jrw21
Very interesting. So, maybe I won't risk them...

Very interesting. So, maybe I won't risk them porting the head. Or maybe I should just send my head in to MM as a core ;). Hmm...

Woops, forgot to ask about lifters and head gasket.. I was...
Forum: Induction 08-21-2010, 06:53 PM
Replies: 27
Views: 13,306
Posted By jrw21
I don't remember who it was at metric I talked...

I don't remember who it was at metric I talked with. The guy seemed like he was in a huge hurry and had a muffled voice..in a nutshell he said talk to you that your engine is awesome. I was a bit...
Forum: Induction 08-21-2010, 04:32 PM
Replies: 27
Views: 13,306
Posted By jrw21
John, thanks for the introduction. Very nice to...

John, thanks for the introduction. Very nice to meet you. My name is Jon and I have been a BMW freak for a long time now. I have 3 bimmers: 99 e46 323i, 98 m3 vert @ 8psi, and the work in progress 91...
Forum: Induction 08-21-2010, 02:49 AM
Replies: 27
Views: 13,306
Posted By jrw21
Wow, ok my eyes are hurting now and I am all...

Wow, ok my eyes are hurting now and I am all pumped up on turbo m4x's. I just read through john's dasc and turbo threads. I must say, John, you sound like a great guy and you have a looot of crazy...
Forum: Induction 08-20-2010, 08:27 PM
Replies: 27
Views: 13,306
Posted By jrw21
Head disassembled: what valve springs to use?

Hello all. I am slowly building/gathering parts for a stroker turbo m42 for my e30 318is. I hear there is a lot of great information on this forum so I joined. Actually, I talked with a guy from...
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