fuel pressure

Predator support for Dodge diesel vehicles

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dunejunkie
Posts: 50
Joined: Sat Jun 23, 2007 11:26 pm

fuel pressure

Post by dunejunkie »

Does the predator increase fuel pressure??? I have had two #1 injectors go bad and it seems that another just went bad. I need to figure this out any help would be good
06 mega cab predator/puck stack,afe stage 2,cfm+ plentum,zilla boost fooler,maghytec deep trans pan, a-pillar gauges and 5 inch exhaust
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ropnjessi
Posts: 258
Joined: Wed Jan 31, 2007 3:58 pm

RE: fuel pressure

Post by ropnjessi »

I believe just the Puc adds the pressure, you really need to watch your rail pressure, its the added fuel that makes things hot and hard on the injectors..
03'/305 Dually 4 x 4
Platinum FASS/150,/Level II CP3, 60hp.Inj.
Stage 1 cold air box, BD Intercooler
Smarty SSR,62/65/13ss, CFM+
Goerend Trans. Westach, Fuel/Rail Gauges

2011 Laramie Longhorn All Stock
dunejunkie
Posts: 50
Joined: Sat Jun 23, 2007 11:26 pm

RE: fuel pressure

Post by dunejunkie »

I didn't have the puck on and i was run in the performance mode. The injector I think is leaking from the top because it fills my crank case with fuel. Is there a gauge I can by to monitor rail pressure and how much pressure is too much?
06 mega cab predator/puck stack,afe stage 2,cfm+ plentum,zilla boost fooler,maghytec deep trans pan, a-pillar gauges and 5 inch exhaust
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ropnjessi
Posts: 258
Joined: Wed Jan 31, 2007 3:58 pm

Re: RE: fuel pressure

Post by ropnjessi »

dunejunkie wrote:I didn't have the puck on and i was run in the performance mode. The injector I think is leaking from the top because it fills my crank case with fuel. Is there a gauge I can by to monitor rail pressure and how much pressure is too much?
You didn't have the puc "on", you mean not plugged in or the switch in the middle position? If it was plugged in on the middle positon its "on" at the lowest setting. Yes there are plenty of types of rail pressure gauges available its your choice, Dodgezilla on this site will tell about what the rail pressure can reach with the Predator...
03'/305 Dually 4 x 4
Platinum FASS/150,/Level II CP3, 60hp.Inj.
Stage 1 cold air box, BD Intercooler
Smarty SSR,62/65/13ss, CFM+
Goerend Trans. Westach, Fuel/Rail Gauges

2011 Laramie Longhorn All Stock
Dodgezilla
Posts: 307
Joined: Fri May 18, 2007 4:44 am

RE: Re: RE: fuel pressure

Post by Dodgezilla »

Rail pressure on my 07 was NEVER even close to being an issue when I was only running the Predator even on the Extreme RKL tune. Maybe 23000-24000psi. Now, when I added the Puck into the mix then RP went way up to over 26-27000psi. Actually, if I remember correctly, the puck would raise the RP pretty high on it's own.
I'm not sure if the Predator adds any pressure but I know that pretty much all of the others don't and that's why you can stack them with a pressure box with no problem. I "think" the Predator is like that.
Modding these trucks will push stock parts to the limit so you may want to consider some better injectors if you keep having the same problem....
04 Ram 2500 RARE Timberline Green 4x4 305/555 CTD/Stock48RE,DS Predator,VA C3.2,HE351 turbo, 2nd gen intake, BHAF,Custom 4" exhaust, More stuff....
deezel_dawg
Posts: 14
Joined: Sun Sep 13, 2009 9:41 pm

RE: Re: RE: fuel pressure

Post by deezel_dawg »

what he just said ^^^^ upgrade to 50 hp injectors , sounds like your burning up the stocks ones.
06 Dodge QCLB 4x4 5.9 Cummins. AFE TT, B&W Turnover, 4 in TBE , MAG-HYTEC TRANS PAN, A pillar EGT/TRANS Temp/Boost...LOCAL 824

Brooksville FL
vrodrex
Posts: 6
Joined: Fri Apr 04, 2008 9:33 am

RE: Re: RE: fuel pressure

Post by vrodrex »

What are the signs of a cracked or bad injector?
concoursd
Posts: 1144
Joined: Fri Mar 16, 2007 9:01 am

RE: Re: RE: fuel pressure

Post by concoursd »

hard starting, no starting, there may be other symptoms as well.
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RRAM
Posts: 197
Joined: Fri Aug 03, 2007 7:30 pm

RE: Re: RE: fuel pressure

Post by RRAM »

heard of fuel getting in the oil, also white smoke.
Reg
2005 3500 Quad Cab Laramie L/B
Predator, AFE stage II, boost fooler
Pillar Mount gauges Billet low stall TC
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