Do I have a boost leak - Dodge Cummins Diesel Forum
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post #1 of 4 (permalink) Old 12-07-2010, 11:02 PM Thread Starter
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Do I have a boost leak

I make about 21psi at WOT. Im wondering if I have a boost leak because when the turbo spools I cant tell if the noise is just from the turbo or a leak somewhere.

91 intercooled
denny T
Full power screw turned in past collar
4 inch intake with open amsoil filter
thanks in advanced

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post #2 of 4 (permalink) Old 12-08-2010, 09:09 AM
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sounds about right to me. with the pump turned all the way up you might see 25psi of boost.

92 W250- K&N Filter, Smoke Screw Adjusted, Synthetic Transmission Fluid.
340hp/662tq (8/24/12)
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post #3 of 4 (permalink) Old 12-08-2010, 12:47 PM
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The most i,ve got on mine was 18-19 so id say your alrite.

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'92 w350 5spd 3.54, D80 DRW, airbags, THD LP and pin, 366 spring, water/meth, VGT, SDX 5x12's, mild VE adjustments, KSB spacer, gauges
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post #4 of 4 (permalink) Old 12-08-2010, 02:50 PM
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ya that sounds right. i was getting 25psi when i still had my stock turbo and injectors and 3 inch down pipe but its straigh piped to stacks. now i get close to 35

1989 W250 Cummins, pump tuned,366 spring,M-5 fuel pin,K&N Air,custom air box,intercooled,HX-40,5x14 injectors,stacks,built 46rh. Dynoed with 727 trans at 332hp and 715ft-lbs at the rw at Diesel Shop dyno days thanks to Beans Diesel Performance with Dyno Dynamics
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