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16V Head for the '02...

Guest Anonymous

By Guest Anonymous,
in BMW 2002 and other '02

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Guest Anonymous

Guest Anonymous

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Only that it's been done so it's possible. There's those two drag racing 02's in Finland that use that solution. What i've heard they say that the old block is stronger than s14 so it can take more boost. I don't know other reason why someone would want to do that but extreme power with max boost.

http://kotisivu.mtv3.fi/ristovirtala/

http://www.lauparacing.com/

BTW what's the situation with your pedal box development? Any pics yet?

Tommy

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Guest Anonymous

Guest Anonymous

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i have done some basic comparing of a s14 head and m10 block.

The good news, it bolts on, timing cover does too. At the back of the head, near where the distributor would be on an m10 head, there is an oil drain for the head that needs to be routed externally, or blocked (not sure if blocked is a good option). The drain winds up half off the m10 block.

The s14 is a siamesed bore block. There are extra cooling passages between the cylinders up to the head. Nothing corresponds to these on the m10 block. So they could be tapped and sealed, or even just leave the cylinder head gasket to seal them. But... these cooling passages were put there for a reason. I believe it was the block, and not the head that was the reason though. The are not big holes, maybe 1/4", with 2 between each pair of cylinders.

The s14 head chambers are a 90mm wide from what I recall. the m10 block bore would have match this at a minimum to avoid a major engine building faux pas. No big deal.

The s14 block has more external and internal webbing. It is also reported to have a better oiling to the mains. The siamese bores and thin walls are probably its downfall for huge boost.

Why you want to do this?

OT - did you get anywhere with your booster less braking project?

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Guest Anonymous

Guest Anonymous

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and I dont recall very much technicle info in the responses, but there may be some clues for you in those threads. The "collective" conclusion was: " why would you want to do that? ", lol- not very helpful. Compatability was discussed by someone, and you already have an excellent post on the S14 block v M10 block which i have not seen before. Really good stuff- hope you get info from someone who has done it successfully, or who has tried and failed and the reasons. Try the archives of both boards for input on this exact subject: i remember the discussion was not too long ago- you may find some good stuff. Looking forward to seeing you all for the Conversion Techniques day and drive. Look for the Inka pictured. good luck!

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It is a high production item. 1900cc capacity is closer to the M10 motor than the S14 2300/2500cc and it is cheaper to buy. Obviously, while someone contemplates the swap, qhy not just overbore the complete motor to 2 liter as it would be simpler to do. M10 motor has 2 valve pistons and the M42 head has 4.

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sv2002logo.gif

URL: http://www.sv2002.com

It is taking a bit of time. I need CG numbers to get going and I am having a hard time finding the scales, and time to get measurements for the calculation. I need cg front to back and height. That is my hold up... I will get the numbers as soon as I can, which should be pretty soon.

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