Choked exhaust? - Diesel Truck Forum -
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post #1 of 2 (permalink) Old 09-06-2009, 03:45 AM Thread Starter
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Choked exhaust?

A week ago my factory tailpipe rusted out just ahead of the rear axle so i went to see my friend at the muffler shop and he bent up and new one and installed it. I noticed the factory one was a mandrell bent so kinks in the bends. I asked my friend how much the kinks would restrict my power and he said I probably wouldn't even notice it but as soon as I left there I could tell something was different. I didn;t have the snap at start form lights and more smoke than before until I reached higher rpms. How much would those kinks hinder my power cause I seemed to be doing good before the new pipe.

1998 Dodge 3500 dually 4X4 with 5.9 12v. 5spd trans with 3.54 gears. Amsoil 6080 filter with outers,stock exhaust with no cat or muffler. Fuel plate full forward with AFC the same. Blocked wastegate and missing silencer ring
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post #2 of 2 (permalink) Old 09-06-2009, 04:14 AM
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It would be like putting your muffler back on. Increased back pressure will make the turbo slower to spool because of the smaller pressure difference before and after the drive turbine. If you want to make sure that's it, pull your exhaust apart somewhere in the middle and see if it goes back like it was before.

1995 12 valve Cummins 6.0L, Air Dog 150, no fuel plate, AFC tuning, 024 DV's, 4K GSK, 18* timing, SDX 5x.014 injectors, Hamilton 181/210 cam and HD pushrods, Stage 2 Port job, 5 angle valve job, 60lb valve springs, ARP studs, O-ringed head, .020" over head gasket, coated pistons, balanced bottom end, Fluidampr, PDI exhaust manifold, homemade intake manifold, HE351cw Common Rail turbo and 50mm wastegate.
Drive Train: 13" Valair clutch [email protected], 5 speed, 4x4, 3.55 diffs, on 285/75 R16s

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