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what kind of compression numbers would be safe to have so that i can rise the boost on my car. the car is basically stock ecept for an exhaust.am increasing the boost by adding a boost controller. i want to increase it until it hits boost cut around that area.
 

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Maz25 said:
12psi without a chip, fuelcut, 14psi with a chip for the turbo to be efficent.
I think he ment per cylinder. I forget the exact numbers but it should be between 100-150 psi and they should all be within 25% of each other. The numbers are in the shop manual. As long and the compression is within specs, it's safe to boost more.
 
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