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Old 07-26-2010, 04:45 PM   #26
Pullin81
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Re: MY 81 GMC dually 2wd Cummins

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Originally Posted by PRattenbury View Post
Are you using stock pump, turbo, injectors and so forth on the Cummins?
Yes im going to use all the stock pumps, injectors and turbo for now ... I want to drive it the way it is for a while before I change anything on the motor...the. One winter I will modify the injection pump.. Injectors and the turbo
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Old 07-26-2010, 05:23 PM   #27
PRattenbury
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Re: MY 81 GMC dually 2wd Cummins

There's a couple things you can do to the pump and turbo without replacing them that will give you some decent power gains if you're so inclined.
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Old 07-26-2010, 08:30 PM   #28
Pullin81
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Re: MY 81 GMC dually 2wd Cummins

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Originally Posted by PRattenbury View Post
There's a couple things you can do to the pump and turbo without replacing them that will give you some decent power gains if you're so inclined.
yeah i was going to throw a fuel plate in and a gsk kit for a little mor rpm then im thinking of swaping the exhuast housing on the turbo for a banks set up..then some small 50 hp injectors.... see what happens i want to keep it perfectly reliable.. i have a few diesel mechanic friends that work with performance diesels so hope they don't steer me wrong haha...

Last edited by Pullin81; 07-26-2010 at 08:30 PM.
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Old 07-26-2010, 08:47 PM   #29
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Re: MY 81 GMC dually 2wd Cummins

Sounds like they have you on the good path. Don't forget to bump your timing up to about 16 degrees and tweak the waste gate (if the Banks deal doesn't address it).
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Old 08-29-2010, 12:31 PM   #30
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Re: MY 81 GMC dually 2wd Cummins

well i just thought i would let evryone know what was keeping and eye on this thread that it is no longer i sold the truck as a roller yesterday...so im either looking for a 4x4 now or im looking to sell my motor/tranny/clutch/master,slave cyl/slip yolk/stacks/ ect......
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