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Forced Induction
Aftermarket superchargers & turbos as well as tuning for stock BMW turbos (N54 motor - 135i / 335i / 535i). Force-fed discussion to make your car go faster

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Old 04-18-2012, 10:30 AM
rogackim70b50 rogackim70b50 is offline
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Mein Auto: 1993 Bmw 325i
Performance for bmw v12 any ideas?

I have just recently bought a e32 v12 from a '89 750il which im going to put in my e36 325i. Im looking for performance parts for this motor (m70b50) but can not seem to find any parts anywhere. I want to bore it .30 over and try to make it a 6.o liter instead of a 5.0 liter with all forger internals and arp heade studs, also looking for a twin turbo kit for it from garrett turbos, any idea as to where i can find these thing? Also looking for a manual transmission. Does anyone one know where i can find a manual 6sp trans and what its from. I do believe that an 850i trans bolts right up but not 100% also if it does will it be able to hold up to 800 plus horse power or should i go to getrag and get one custom built?
Thanks Jesse

Last edited by rogackim70b50; 04-18-2012 at 06:15 PM. Reason: Grammar errors and forgot a question
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Old 06-26-2012, 08:47 PM
mcombs89 mcombs89 is offline
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Location: NE Ohio
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I enjoy the old V12 too, but there's definitely not alot of aftermarket support for it. Boring it that amount will not increase it a full liter, either. Realistically, the only way I know of getting custom pistons is JE or Wiseco. One of those two will make them if you send a stock piston.
As far as turbo setup, well that's up to you. I've never encountered a kit for them, but any fabrication shop can make the manifolds and down pipes. That's the serious fabrication side of turbocharging. Intercooling is simple, buy a universal intercooler, and 2 sets of universal piping kits, that usually does it...
Turbos that are Garrett flanged, most common are T3. A couple GT28rs's would be great, and a responsive low boost engine. With forged low comp pistons, and a good tune on Haltech, Megasquirt etc it would be nice.
It's all custom on odd-ball apps. The 850 transmission works, yes.. But, would take work to make it go in a E36 I would imagine.
It's been done in E30s, but it's a tight squeeze. Honestly, it is a heavy engine with a major lack of support. But if you were to do it, it would hit like a sledgehammer!
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Old 03-29-2013, 07:37 AM
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JayDizzle92 JayDizzle92 is offline
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Nice build

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