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turn up HP on 855 Cummins
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cocodrie
Posted 11/7/2008 22:34 (#500635 - in reply to #500603)
Subject: RE: turn up HP on 855 Cummins



Mississippi Delta
I'm kinda the same as FVF, but we used to change out the "buttons" in the pump. Seems like a 9370 came with a #17 and we put in #10 or 12's. Also put a one way valve on what I guess was the aneroid line. Not sure what it did, but sure helped. Seems like it may have made it think you more manifold pressure than you really did, so it would shoot the fuel to it. Not 100% sure about all this as that was ten years ago, and we have long since gotten rid of those tractors. But we did have them juiced up pretty good, (cummins mech. said over 450 hp by his guess) and put over 5000 hrs on them pulling pans, never had an engine problem, just rear ends, and drivelines. Some of the steering wheel holders we had in the seat could tear up an anvil with a rubber mallet! The rear end problems were finally slowed by putting 90W in the front and rear and unhooking that silly system case has on them.
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