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5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

What exactly does this do? Replace single cupped washers with single flat washers or multiple flat washers?... JOIN NOW TO REMOVE TRACER

Replace afc washers?

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  #1  
Old 05-28-2010, 03:50 PM
Delray2009's Avatar
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Default Replace afc washers?

What exactly does this do? Replace single cupped washers with single flat washers or multiple flat washers?
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  #2  
Old 05-28-2010, 06:42 PM
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you just switch the front washer with the back washer, doing this will allow the afc foot to move farther farward, u only really need to do this i believe if your running your plate ff, u should also grind 1/4 inc off the barrel of the foot arm(this will also allow it to move forward more.

cumminspwr11's Sig:1995 auto, 4x4, 181 dvs, 5x12s, triple disk billet tc, billet input shaft, no plate, afe intake, exhaust, afc mods, custom intake horn, 2095 rack plug, 18*, 4k govenor springs, kdp killed, built trans, mighty diesel head bolts, port and polish, he351vgt, 4.10 gears, hp front axle with free float hubs
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Old 05-28-2010, 09:04 PM
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when i did mine i switched it with a 5/16x 1.5 fender washer

wes-cummins's Sig:97 cummins, star wheel FF, SMOKE SCREW FF, afcFF, NO PLATE
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Old 05-29-2010, 08:14 AM
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Originally Posted by Delray2009 View Post
What exactly does this do? Replace single cupped washers with single flat washers or multiple flat washers?
it allowes the AFC foot to travel more foward and back. Swap the flat washer for the big cupped washer, you can leave the other flat one in there.

94 12valve's Sig:Dave
94 Dodge home built 2.6" puller The Green Machine
97 Dodge S362/GT4718R, 12mm ppump, 5x.016's, built auto
06 Dodge CR stock

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Old 06-01-2010, 12:09 PM
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Allright, I went ahead and did everything that the "tuning guide" pdf file said to that I forget who exactly threw up here. As far as the washers went I changed them out with single flat washers. Before I changed them out I was tuning the afc with an air compressor and even at say 40psi the slide wouldnt slide all the way, but after replacing the washers it has no problem sliding all the way even afte shaving 1/8in off the barrel. Thanks guys for all your help! the tech write ups helped alot! As I tinker and learn more I'll defianlty post more to help out any new guys, I know it sure helped me when yall did the same! Thanks Again!
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  #6  
Old 06-01-2010, 01:40 PM
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Glad it worked!! Those 12v's are a TON of fun to tinker with
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Old 06-01-2010, 10:19 PM
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I completly agree! now I'm trying to figure out if I should build the boost controller or not... I have a 0 fuel plate ff and my afc ff with all the mods to that done and I turned 38psi on the stock turbo... so I'm thinking maybe it woould be a good idea. Not exactly sure what it does tho... gotta do more research!
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Old 06-02-2010, 10:58 AM
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it controls when the wastegate opens. I would not run anymore boost than you have now with the stock charger, you should actually take it down a little.
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Old 06-02-2010, 05:07 PM
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Yea that's what I was talking about, I don't wanna run the chance of over-spooling the stock turbo. I'm not sure if it has any effect on it or not, but I havmt even put in the gsk yet and it already turnd 38psi. Is the boost controller essentially a blowoff valve?

Delray2009's Sig:1998 3500 Laramie 12v Dually:4kgsk,16.5*,5x.014's, Silencer ring mia, #0 fuel plate FF, Afc FF and fully modded, tuned starwheel, bhaf, straight pipe, 22.5in rims, Raptor 150. 2006 Recon Tail lights. Waiting on funds for valve springs to be installed.
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Old 06-02-2010, 07:35 PM
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Originally Posted by Delray2009 View Post
I completly agree! now I'm trying to figure out if I should build the boost controller or not... I have a 0 fuel plate ff and my afc ff with all the mods to that done and I turned 38psi on the stock turbo... so I'm thinking maybe it woould be a good idea. Not exactly sure what it does tho... gotta do more research!
Boost controller? Not feeling it. Tune your fuel to back outta boost.

Originally Posted by Delray2009 View Post
Yea that's what I was talking about, I don't wanna run the chance of over-spooling the stock turbo. I'm not sure if it has any effect on it or not, but I havmt even put in the gsk yet and it already turnd 38psi. Is the boost controller essentially a blowoff valve?
A boost controller controlls when boost starts bleeding off. A blow off valve, which is nearly pointless (lets not turn this into a bov vs. non bov thread), will release the intake charge when the throttle is lifted suddenly
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