To Shim FPR or Not to Shim? 05-F350

ebusa · #1 (**permalink**) 05-12-2009, 11:14 AM

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

**psd_va** · #2 (**permalink**) 05-12-2009, 11:20 AM

i've haven't heard anything about that mod i am curious myself

ebusa · #3 (**permalink**) 05-19-2009, 06:59 AM

Must not work with the 6.0

Hardline · #4 (**permalink**) 05-19-2009, 07:45 AM

What is your fuel pressure?

**SCUFFY828** · #5 (**permalink**) 05-19-2009, 08:26 AM

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

cartmanea · #6 (**permalink**) 05-19-2009, 09:18 AM

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.

***HeavyAssault*** · #7 (**permalink**) 05-19-2009, 09:57 AM

An AirDog provides much better results, but isn't nearly as cheap.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Powerstroke.org Advertisement