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Hello again. A friend of mine has a service truck with a mechanical 8.3 Cummins mated to an allison automatic. I am guessing it weighs about 15-18,000lbs. It governs out at about 65 mph. I am almost positive it has the p7100 pump. How is ... JOIN NOW TO REMOVE TRACER

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  #1  
Old 02-26-2009, 08:27 PM
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Default Turning up 8.3 Cummins?

Hello again. A friend of mine has a service truck with a mechanical 8.3 Cummins mated to an allison automatic. I am guessing it weighs about 15-18,000lbs. It governs out at about 65 mph. I am almost positive it has the p7100 pump. How is the best way to go about giving it more power. Would you recommend sliding the fuel plate (forward I think), grinding on the fuel plate, buying a fuel plate, or some other means? Would a fuel plate work from a 5.9 cummins, probably not? I am guessing the factory hp is on the low end, maybe 225, and I can check. He wants to keep it simple, and I don't think he will need a pyrometer as it is an automatic, doesn't pull trailers, and doesn't want to bomb it. Thanks for the advice. Eddie
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Old 02-26-2009, 09:34 PM
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pretty heavy truck i would recommend the pyrometer, then probably slide the plate, if it governs out that slow then you may need to adjust the throttle for more revs

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Old 02-26-2009, 09:59 PM
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get a pyro and put a 100 plate in there nad hang on for about 25-30% more powa

install a BHAF for more air and make sure the exhaust is 4" or better all the way out


Whit's Sig:"Enjoy the day. Take what you want and leave the rest...."
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Old 02-27-2009, 07:54 AM
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Default Plate numbers

Is the 100 plate the same as a 100 plate for a 12 valve 5.9 Cummins? I don't know the numbering system or what they mean. What about just sliding the original plate or grinding on it? Thanks again
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Old 03-09-2009, 10:19 PM
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if its anything like my 8.3 the exhaust is already 4 inch. i would also like some info and pics if i could on turning up the power. thanks =John
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Old 03-09-2009, 10:36 PM
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outch 225hp.. my buddy just bought a boat with a 8.3 in it.
i think it's like 350hp... i'm pretty sure his has the p7100 i didn't get a real close look.
being a boat it already has a 7" exhaust no cat and bhaf
i tried to get him to hop it up a bit... he's to much of a wuss

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Old 03-10-2009, 07:43 AM
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the 8.3 have the same pump as the ih dt466 and I know I've seen some good write ups on how to turn them up but I don't remember where the links are

---AutoMerged DoublePost---

found the site Low buck diesel power | turn up your fuel rate for free, or almost
thanx nevrenufhp

yj junker's Sig:09 6.7 cummins QC/SB ,H&S egr & cooler deletes,Mini max tuner,5" flo pro exhaust,custom rail protector/headach rack,eagle alloy wheels and toyo open ctry 285/75/17's,buddy ramp tailgate A must have for loading

Last edited by yj junker; 03-10-2009 at 07:43 AM.. Reason: Automerged Doublepost
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Old 02-01-2013, 09:01 AM
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Here's a couple videos of an F800 with a hopped up 8.3 in it. It has marine injectors and a #0 fuel plate(both from me), 3k gov springs, and an HX50 turbo. It's going from about 20mph to 65. He says it was not even close to full pedal(about half way to the floor). Plus, was only shifting at 2300rpm.
[url] http://i249.photobucket.com/albums/gg231/caseyray63/4a05240daaae5c186a91a0fe2817bf3d.mp4
[url] http://i249.photobucket.com/albums/gg231/caseyray63/cfe2c2d5ff8ab4212b1a460310a801e4.mp4
Sorry, you have to copy & paste.

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http://www.freewebs.com/nevrenufhp/index.htmDiesel fuel rate site of mine.
67 F100, 300, Edelbrock 4V, heddder, 4 spd, soon to be 12 valve Ford 6.6 from an F600.
work truk: 94 IH 4900, DT466-P-pump, #0 plate, 3 clicks on gov springs, and 22* timing, straight piped(it's on youtube).

Last edited by nevrenufhp; 02-01-2013 at 09:07 AM.. Reason: oops
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