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JZ Enthusiast
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3,010 Posts
Discussion Starter #1
Hey guys i have no idea or infos about boost levels and etc about 1jz boost safest level but my friend got 1jz on his supra and he wants to install 550cc 2j injc and higher the boost on stock twins so whats the farest psi he can go ? 15 or 17 ?

thanks ..
 

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Premium Member
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4,409 Posts


15psi regardless of everything
 
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