turbocharging an m20 - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 10-15-2005, 10:09 PM
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turbocharging an m20

is an m20 reliable enough to turbo whatwould i need to do to make it reliable how much would it cost me

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#2 (permalink) Old 10-15-2005, 11:26 PM
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Well I just bought a Dinan Turbo E30 which runs up to 13psi just fine. It does have a bigger HG and some other things done to strenghten the motor's internals. You for sure would need a bigger headgasket and studs (400-500 for good stuff) and then I bet you could run 7-9psi on it just fine.

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#3 (permalink) Old 10-17-2005, 04:03 PM
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jrhaile did u buy ur friends e30?????????????


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#4 (permalink) Old 10-17-2005, 05:42 PM
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#5 (permalink) Old 10-17-2005, 09:13 PM
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there was a whole debate about this thing on the bimmerforums under the e21 forum, go check it out.....

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#6 (permalink) Old 10-18-2005, 04:53 AM
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Quote:
Originally Posted by jrhaile
You for sure would need a bigger headgasket and studs (400-500 for good stuff) and then I bet you could run 7-9psi on it just fine.
not needed at all. if under 10psi is the goal on a smaller turbo, just switch to the newer torx headbolts or some 12.9 bolts and you're fine as far as internals go.

if you want to pay for a kit, then go through tcd. if you want to build your own kit then do some research at e30tech. there's a turbo faq along with many many many threads about the subject, so searching should answer any possible question you may have.
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