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Discussion Starter · #1 ·
How much boost can a stock bottom end of a Beta 1 or Beta 2 2.0L i4 handle?
I am running 13 PSI right now, having slowly worked my way up over the course of a year. I got retarted cams, AEM FI/C, timing retard, larger injectors, bla,bla, bla, to the top end. I am wondering, has anyone put a full atmosphere to a stock bottom end? (15 PSI) ????
 

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How much boost can a stock bottom end of a Beta 1 or Beta 2 2.0L i4 handle?
I am running 13 PSI right now, having slowly worked my way up over the course of a year. I got retarted cams, AEM FI/C, timing retard, larger injectors, bla,bla, bla, to the top end. I am wondering, has anyone put a full atmosphere to a stock bottom end? (15 PSI) ????
Yes i know someone who ran 15psi on stock internals for about 5-6 years summer car daily at around 300whp
 

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Discussion Starter · #3 ·
Thank you John. I am going to up my boost later this summer, and go for it.
 

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Thank you John. I am going to up my boost later this summer, and go for it.
I have mine running 12 psi on a T28 but i bought it that way with guy saying there were turbo pistons in it but i have never checked yet and it runs fine but it probably only has a thicker head gasket to lower the compression if anything
 
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