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I was just wondering on a totally stock 7M-GTE, what should the boost gauge read at when under full boost? I am asking this because mine hits arounds +3.2 X 100mmhg which works out to around 6.2 psi. Correct me if i am wrong, but shouldn't the supra hit +4 X 100mmhg which is about 7.7 psi? If my boost should be higher than is it safe to assume if have a small vacuum leak somewhere?
 

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SP-61GT powered
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Mine only hit about 300-310 mm Hg when it was stock. I test-drove 3 other Supras that did the same thing. I think it’s due to the high altitude.
 
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