What are the big #'s being made with truck manifolds?
02-17-2012, 09:34 AM
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I'm at 965RWHP now through the TH400. New tune with 160lb injectors that were flow matched a lot closer than my last set.
I've put in a bullet muffler and got rid of the full muffler so she should get a little more now. Torque converter is now too loose and new wastegate springs on order. Had to stay at 23PSI on the dyno before but once these are sorted out I'm thinking 26PSI and a nice boost in HP. But clearly guys doing 1500RWHP through stock manifolds just shows you that there's not much holding you back with a set of em.
I've put in a bullet muffler and got rid of the full muffler so she should get a little more now. Torque converter is now too loose and new wastegate springs on order. Had to stay at 23PSI on the dyno before but once these are sorted out I'm thinking 26PSI and a nice boost in HP. But clearly guys doing 1500RWHP through stock manifolds just shows you that there's not much holding you back with a set of em.
