i know im wrong but it sounds like when you hit 9psi it opens to prevent you from getting any more boost. or does it open if you set the boost higher? ive never gotten this indepth with turboes and im glad im doing it now.
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If you have three quarters, four dimes, and four pennies, you have $1.19. You also have the largest amount of money in coins without being able to make change for a dollar.