We have a single axle 83 Ford L9000 with a 855 cummins 240hp it seems pretty doggy when pulling a load, so I put a boost gauge in it, the most pressure I get is 7 maybe 8 psi at 2000 rpm. My question is this normal because it's a low hp engine or is my turbo getting bad, I did pull the intake hose off and the shaft doesn't wiggle and no sign of it dragging on the housing. Any thoughts appreciated.
Old Cummins Boost ?
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