Euro M30B34 10:1

Discussion pertaining to positive pressure E28s.
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boi
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Euro M30B34 10:1

Post by boi »

So, I accidentally bought a euro M30B34 with a 10:1 compression ratio instead of an M30B35. I planned on turbocharging said motor but I am unsure how the higher compression will affect things. Has anyone built a turbo euro M30B34 before? Any suggestions?
LeiseyJr
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Re: Euro M30B34 10:1

Post by LeiseyJr »

God speed. Im sure someone will glady trade for a b34 and b35.
T_C_D
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Re: Euro M30B34 10:1

Post by T_C_D »

Just run 8-10 psi instead 16-18psi
Shadow
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Re: Euro M30B34 10:1

Post by Shadow »

e85 don't care
boi
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Re: Euro M30B34 10:1

Post by boi »

T_C_D wrote:Just run 8-10 psi instead 16-18psi
How much power will that give me? I was aiming for 450 at the crank. If I get a thicker head gasket, I calculated my compression ratio to be 9:1.
SlickDizzy
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Re: Euro M30B34 10:1

Post by SlickDizzy »

With good engine management you should be fine. Car would have phenomenal off-boost drivability and more area under the curve. Do it!
boi
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Re: Euro M30B34 10:1

Post by boi »

I guess I'll just go forward with the build and see what happens, airing on the side of caution of course.
T_C_D
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Re: Euro M30B34 10:1

Post by T_C_D »

boi wrote:I guess I'll just go forward with the build and see what happens, airing on the side of caution of course.
Use a stock thickness HG. Power ultimately depends on many factors including turbo kit efficiency, elevation, fuel quality, ambient air temperature etc. I would pick a cam that matches the exhaust manifold.
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