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350ztt4 said:
How much psi can the v6 block take???
Not sure what all is taken into account but I know for sure that actual displacement of the engine and compression ratio plays a large part in finding the correct psi. You really need to figure out what the safest psi to run, not the max. Im not a turbo guy but I have learned this much just from hanging around my turbo buddies. Im sure others can be more elaborate.
 

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The block itself can probably take a crap load. Now all the internals probably not much over 9-10 PSI...

A safe runing boost pressure would probably be 5-6 PSI for a stock block VQ
 

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All that I know is that when the Greddy guys set up the TT kit for the 350, they have it set at 6 pounds of boost and got a 90 HP bump through stock cats.
 
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