Engine/Transmission (1998.5 - 2002) Which Pusher Pump??

[Supermod56]

Guys-

Which pusher should I get to run tandem with the L/P, the Carter 4600 @ 8 psi, or the 4601 @ 18?? I have seen arguments for both.



Thanks!!!

Tom



2001 2500 4X4 5-Spd LB Quad. DD TTPM, DD Stage-1's, AFE, Bully-Dog 4" Exhaust, Geno's Banjo's, 2nd L/P, JAKE Brake, 3 Autometer's on the A-Pillar, Silencer ring M. I. A. , Redline oil throughout.

 

[JL penner]

4601 will cause cavitation. 4600 is your best bet. IMO

 

[Tom L]

Carter Pump/oem

You didn't say if you were running a hopped up motor that needs more fuel so my reply is if you are not. I read all the pump posts from early this year and went with the one that said move the stock pump to as close to the tank as possible. I did, idle pressure went to 15 psi and holds a steady 11 at 70mph, also I used the original pump that had 36m on it, most guys were saying theirs was trash by then in the stock position. I have had no trouble and the work I did to move it was well worth it. TL

 

[Supermod56]

You're right, it's not too hopped up, I mostly use it for towing. What I want to do is "help" the stock pump, and keep all the stock filter/heater/fuel lines. Right now I have 15 psi at idle, and about 10 towing at 70 MPH, but the lift pump is still new. Maybe the 8 psi pusher will be enought to "help" it without overdoing it?



Thanks

Tom



2001 2500 4X4 5-Spd LB Quad. DD TTPM, DD Stage-1's, AFE, Bully-Dog 4" Exhaust, Geno's Banjo's, 2nd L/P, JAKE Brake, 3 Autometer's on the A-Pillar, Silencer ring M. I. A. , Redline oil throughout

 

[KTobin]

After some investigation, I went with the Carter HP4600 @8psi and 100 gph. I built a simulator and bench tested this pump with my old 10 psi @ idle, LP. When run in series with your stock LP, you can expect your idle psi to be the sum of both pump output pressures. I found that the pusher will not push past the "non rotating" blades of the stock LP. The stock LP can be "delivery" dead and rotating and you will deliver through it but if electricaly dead and non rotating, it's up against a wall. I think a pre filter is a good idea. I went with the Stanadyne FM100 series. It has 2 outputs. One output to my Pusher and the other for my pusher bypass. I found a very clever "high flow, low flow" bypass check valve by "Gary" on this forum and I went with it. By varying the orifice you can bring your overall psi down. I am very pleased with my setup.

 

[NWhitney]

Bypass Check valve

Do you have more info on this "check valve, bypass" or a screename for "gary"? I am interested in a setup like this. If you could put up some kind of layout of the setup or a more detailed explination.

 

[Mad Bomber]

pusher pump

I ran the carter 4600 along with the stock pump. I also had a screen filter before the pump. I was running about 21 to 22 LBS When my stock pump was failing it would get about 7 psi though the stock pump. It ran fine for 3 years, till I upgraded to a FASS.

 

[KTobin]

NWhitney... . Check your PM