To Shim FPR or Not to Shim? 05-F350 - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

 
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post #1 of 7 Old 05-12-2009, 11:14 AM Thread Starter
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To Shim FPR or Not to Shim? 05-F350

I've searched and it seems like this mod may be worth while??

Anyone have experience with this mod? yay or nay?

Will it noticable run smoother? better starts? power?

Thanks

-Evan

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2005 F350 Crew Cab LB FX4 Lariat
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post #2 of 7 Old 05-12-2009, 11:20 AM
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i've haven't heard anything about that mod i am curious myself

03 F350 6.0 SRW 4X4 lariat

481hp 832tq

8" super lift 385/70r16 Toyo MT's
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post #3 of 7 Old 05-19-2009, 06:59 AM Thread Starter
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Must not work with the 6.0

-Evan

Semper Fi

2005 F350 Crew Cab LB FX4 Lariat
Loaded-Leather, Sunroof, 06 Chrome Package
5'' Tuff Country Lift
Toyo MT's 35's with Race Line Renegade 20's
ARP Studs, EGR Cooler Delete, Coolant Filter
MBRP 4'' Exhaust Turbo back, No Cat
SCT X3 Tuned by TSD & IDP
Stock Airbox, NON-MAF Truck
GT3788VA POWERMAX Turbo
DiProcol Optix EGT & Boost Guages , Scangauge II

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post #4 of 7 Old 05-19-2009, 07:45 AM
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What is your fuel pressure?

04 F-550 CC 6.0 4x4 cab n chassis 4.88 XLT 193K
Money maker with utility bed.
97 F-350 CC 7.3 ZF-5 4x4 4.10 324K
Moves my stuff around.
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post #5 of 7 Old 05-19-2009, 08:26 AM
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this mod is not realy a big advantage , the thing about these injectors in these engines is , its not pushing more pressure they need volume , there is a big difference in the two, 7.3 or 6.0 both a spring regulator , but throwing the pressure way up is not that beneficial

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post #6 of 7 Old 05-19-2009, 09:18 AM
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I would only do it if your idle fuel pressure is low. If you lose pressure under throttle your pump is weak. I had about 53 psi at idle and added a .177" BB between the regulator spring and brass cup and I'm at 62 psi idle now.

2012 F-150 XLT Ecoboost SuperCrew 6.5' 4x4
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post #7 of 7 Old 05-19-2009, 09:57 AM
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An AirDog provides much better results, but isn't nearly as cheap.


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(In support of Zmann's request)

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