Engine/Transmission (1998.5 - 2002) Stock Lift Pump plus Carter 4601(8psi)

[NWhitney]

Stock Lift Pump plus Carter 4600(8psi)

This is for the guys that are currently running a Stock Lift pump, or a Carter 4601 pump (16psi) in or close to the stock location with a Carter 4600 (8psi) pusher pump located at or near the tank. I am mostly interested in trucks with less than 400RWHP. Please comment on longevity, problems, cost, and general setup of your system if it is different than above. I am trying to decided what to do with my failing lift pump and a Fass or like is out of my price range. I am interested in something south of $300. I think there are quite a few guys out their running a setup like this, but I have not found a single post were anyone has polled this group. I hope this also helps others in a similar position.

 

[Gary - K7GLD]

FOR starters, the Carter 4601 is the *16 PSI* unit, and the 4600 is the 8 PSI one...



As to lifespan and such. over 30,000 miles on mine, absolutely trouble free miles - totally satisfied with price and performance!

 

[Graphic man]

I am still on my first one with 85,000 miles but i am going to replace it for that piece of mind

 

[NWhitney]

Thanks Gary... to much info in too little time!

 

[JL penner]

C'mon, there has to be more people than this that have done this mod. I am about to do it, but would like to see some more info on it!!

 

[AHughes]

Last month just installed a Carter pusher pump on frame rail just ahead of the tank and a Stanadyne FM100 Prefilter closer to the tank. The Stanadyne filter setup costs just under $60 but the filters are about $22. 00 each (You can probably find them cheaper?) but they are supposed to last 15K miles. The prefilter is also a water separator and has a drain on the bottom. The Carter pump I installed is a 5psi unit and wired it to a ign. hot wire off of a Painless Junction box from Geno's. I'm getting 5-6psi of pressure just by turning the key on and after starting it jumps to 18psi and stays there. I haven't been able to pull it down below 17psi. I've been thinking about moving my stock pump down to the frame rail but haven't done that yet and removing the 5psi Carter. (I don't have the part number in front of me. ) My thoughts were if the stock pump wasn't made to pull fuel I'd help it with a lower pressure pusher pump. So far runs good and no problems. Had to rubber mount the bracket for the fuel pump as when you turn the key on it starts pumping and the vibration can be heard in the cab but after the engine is running you can't (at least I can't) hear it. I'll let you know how this setup works. Total cost was about $150. 00 and a little labor. Get one of those mini tubing cutters and cut the fuel line and make sure you cut the line from the tank and not the return line. 98. 5 QC, AFE, DTT, 65hp EDM inj. , VanAAken box Gages

 

[JL penner]

Get one of those mini tubing cutters and cut the fuel line and make sure you cut the line from the tank and not the return line.

I hope that wasn't learned the hard way!

 

[nieters]

i am running the carter 4600 for a pusher. idles at 21 and never drops below 16. my fuel pressure is always monitored. i did my setup via a relay with a switch inside the cab. very small switch. switch is run thru the ground. i have to give credit to steve st. laurent. he gave my the vision. the pump is 75-80 dollars through jegs or summit. i added a screw on fuel filter after the pusher and before the lift pump. only saw a drop of half a psi. if you do this type of setup, or close to it, use some type of rubber coating on your connections on the pump. free advice. i did this setup in may of 2002, and have been happy since then. good luck.

chad nieters

 

[JL penner]

Is there anybody out there that has had this setup fail??

 

[Spunkys Ram]

I have done this setup as well back about a year and a half ago. Never had any problem with it at all. I have the 7psi pusher pump. One thing I did notice though after I installed a fuel pressure guage(connected to the VP) is that at idle I have 31 psi of pressure(WOW). I know that is too much so I disconnected my pusher pump. I'm kind of wondering why I have so much fuel pressure when I only have a 7psi pump? After I disconnected the pusher I know have about 15 psi of pressure at idle. Hummm.....

 

[TomGolden]

I have exactly this setup. I bought the Carter 8PSI pump as a kit from Fred Swanson of Desert Diesel Parts in the Phoenix, AZ area, for around !25 if I remember correctly, back in late spring of 2002. I think I have ~45 - 50K miles on the twin pump setup, zero problems to date with it.

 

[JL penner]

Just installed it!! With my old setup I got 11psi idle, 7psi cruise, and 3psi WOT. Got mine from summit racing $80 plus some wiring and new fittings from Napa $20. Now I have 18psi idle, 15psi cruise, and 10psi WOT. Couldn't be happier, I'll keep you up to date on any changes.

 

[Larry Willard]

I have had mine on for a little over 60000 miles mow. Today I replaced the lift pump (stock location). It was the 3rd lift pummp in 40000 miles, and I could pull it down to 5 psi, so I decided to add the 7 psi pump from Summit, powered by a relay off the battery that is trigggered by tapping into the existing lift pump harness.

I feel this is the best set up for the money, since that bad lift pump made it for 60000 miles. I will see how it tows in a couple weeks.

Larry

 

[SSchulte]

I have exactly this setup. I bought the Carter 8PSI pump as a kit from Fred Swanson of Desert Diesel Parts in the Phoenix, AZ area, for around !25 if I remember correctly, back in late spring of 2002. I think I have ~45 - 50K miles on the twin pump setup, zero problems to date with it.

sounds bad ass

 

[KennethJohnson]

Was considering doing that mod but can't find the stanadyne filter. Could you tell me where to get one? I already tried JEGS and Summit. thanks, Ken

 

[MAX A/C]

AHughes- I am interested in doing the same setup you did--sounds like a great solution. Where did you get your "Stanadyne set up ($60)" and did you have to make any sort of brackets?

Thanks much.

Scott

 

[Graphic man]

keep in mind that any more than 5psi with the key turned on may cause a hard start problem and any more than 15psi running could cause VP44 to fail

 

[MAX A/C]

Graphic man- that's a good point about keeping the pressures within spec... more is not always better.

I've been thinking about moving my stock pump down to the frame rail but haven't done that yet and removing the 5psi Carter.

Why are you considering removing the 5psi Carter? Do you have a part# for it?

Thanks

 

[Steve St.Laurent]

Actually that number would be 7 psi and that is while cranking. You will get full fuel pressure when you turn the key on and it will bleed off to 0 after the pump shuts down (which depends on the model but is usually around 2-5 seconds). When I researched adding a pusher pump to my fuel system I talked with Cummins and Dodge engineers and both said 22 psi would be no problem (which is what my system runs at). I have been running at 22 psi for 85,000 miles now as have a number of other people on here. I know of no instance of anyone having a failed VP44 due to high fuel pressure on here as of yet.

 

[KTobin]

When I researched adding a pusher pump to my fuel system I talked with Cummins and Dodge engineers and both said 22 psi would be no problem (which is what my system runs at). I have been running at 22 psi for 85,000 miles now as have a number of other people on here. I know of no instance of anyone having a failed VP44 due to high fuel pressure on here as of yet.

Thanks Steve, for your research. I have been a bit uneasy since adding my pusher and having 21 psi @ idle. I was uncomfortable and was considering removing my bypass check valve in order to bring my pressure down. However, that would pretty much render my pusher redundant as it would for the most part be running in a bypass loop.



Kevin