Any one know how much Boost can the stock engine handle?
And how much boost does the stock Supercharger put out?
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04-09-2010
Any one know how much Boost can the stock engine handle?
And how much boost does the stock Supercharger put out?
04-10-2010
Stock M90 is what, about 7lbs. of boost. Colder days, you may see a little more boost.
Safely you can run in the range of 12-15 lbs. with no problems, but you HAVE TO RUN SUPPORTING MODIFICATIONS TO SAFELY RUN THAT.
Maximum boost...I think it boils down to how much the heads/head bolts can handle. That seems to be the weak spot on our engines. Too much boost, the heads will lift up enough because the bolts/studs cannot hold them down...enough/evenly and ''poof" there goes your head gasket.
I have heard some of the turbo guys in the 20 lb. range easy enough.
~F~
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