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Psi with pulley’s on SI Trim

2017 Views 16 Replies 9 Participants Last post by  ASAP
I have trick flow top end package. Stock block With Si trim. I installed It but it has 8’ crank and 3.5” blower. Just wondering at 6k how much boost do you think I’ll make?
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Every engine is different but that pulley combo is spinning the impeller to just under max speed at 6000 rpm. Probably 15lbs
Max boost is 26#
I know this is an older post but to update this thread. I still run the 8" Renegade pulley and a 3.33 upper. I made 13-13.5# of boost at 6k. Hope this might help someone down the road or doing a search anytime in the future
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