Lift pump for higher hp (750+) trucks what fuel system are you guys running?

[adeso]

I made a true sump that bolts onto the bottom of the tank, and I have no issues. The inside diameter of the sump is about 3 inches, but I only drilled a 2 inch hole in the bottom of the tank so it has a lip at the top of the sump to work as a fuel trap. Seems to work great for me. 1/2 line all the way from the tank
I made my own but you can find them for around $165ish

 

[ecc_33]

i was looking at these. I was probly going to give sump on the bottom of the tank a try or the PPE fuel pickup deal. Not sure which one to go with. I do like the idea of not having to drop the tank again!

 

[CurtisEmery]

Sorry for the derail. Has anyone ever tried something like a Aeromotive 2000 or one of their belt driven pumps for compitition applications? How much base fuel pressure is tolerable if the ficm is on the return side of the fuel system?

 

[super diesel]

The return line sees pressure. I've put a transducer on it (even though it's open) and found the pressure is relative to what is being supplied and returned from non use. It would have to utilize a boost activated regulator Curtis. You can run a regulator to it, and have it returned into itself (tried this and found it to be successful as well). The return pressures would have to be monitored to keep from over pressurizing the FICM though.

 

[DetailsUnlimited]

I have heard and seen this problem with the factory pickup and low fuel. The pump pulls so much fuel that it sucks the cup dry. Either turn the pump off when low on fuel which defeats the purpose. Put a draw straw or sump. My friends lb7 with the ad165 did this. And a buddy at his shop see's this issue often.

 

[Righteyeblind]

Boost actuated regulator helps too. With a sump FASS 260 set at 10psi and 5/8 feed line to a junction block I drained it to zero without boost hooked to the port. After I hooked boost line to the port no more zero PSI issues. It goes up to 20psi at WOT.
Probably cant do this with the AD165 but if you go with an unregulated pump and put a regulator afterwards.

 

[CurtisEmery]

Thanks for the info. Is there a point where too much inlet pressure to the cp3 is a problem at wide open throttle? I was thinking about using a boost referenced regulater and ramp the pressure up from say 10psi to 60ish psi at full throttle?

 

[CurtisEmery]

Also do you guys think an electric pump is the way to go? I like the belt driven setups, they have flow on demand which seems like a good way to go instead of constantly bypassing the excess...

 

[LBZ]

For the life of me I cannot understand why anyone would want to go with technology from the 1930's for a fuel supply system. (MITUSA) Leave that shit for the 12v guys!

Aeromotive and Fuelab are far superior in design and controllability. Plus it is far better to push the fuel rather than try and draw it 10'-no matter what pump you have!

If it were me trying to fuel anything over 1000hp, I wouldn't mess around. I would use a Fuelab low pressure/high volume Prodigy pump which can be speed controlled electronically, with two seperate feeds somewhere down the line for each CP3. Also, I would use as little hose as possible as rubber can and will eventually deteriorate and breakdown.

That said, there is nothing wrong with the FASS or AD pumps, Fuelab is just personal preference as far as bang for the buck goes.

 

[MWDHAND]

Will you post a new thread after you evaluate this pump? I would be very interested to get feedback on this product. I have only read about them.

I have had on my truck now for just about 2 years. Original belt and not issues!! My PPE died within 8 months!!

 

[ecc_33]

There are 3 nipples on top of the sending unit of a lb7. What is supposed to go onto the middle nipple? IIRC I don't think anything was hooked to it

 

[Dan@PPE]

Still got my PPE lift pump on my truck. The pump has been on there about 6 years (untouched) and it makes 980+ RWHP.

 

[ecc_33]

The one to the front of the tank is the supply and the one to the back is the return right? Maybe tommorrow i'll get a chance to craw under my truck and look at it again. I can't remember what was on the middle nipple? Soooooooo anyone know what the middle hose should be on a lb7 sending unit?

 

[Righteyeblind]

Still got my PPE lift pump on my truck. The pump has been on there about 6 years (untouched) and it makes 980+ RWHP.

Wow! Tell the truth now so people don't buy PPE pumps that really aren't good at all. I have never had one work or seen one last more then a year.

 

[Righteyeblind]

Thanks for the info. Is there a point where too much inlet pressure to the cp3 is a problem at wide open throttle? I was thinking about using a boost referenced regulater and ramp the pressure up from say 10psi to 60ish psi at full throttle?

I'm not sure. I haven't run that high yet. I think Micheal has run his at the high of pressure.

 

[JoshH]

Just an FYI for you guys, but the NHRA only allows so many inches of rubber fuel hose (I think 12). The rest has to be metal line or braided stainless or NHRA approved braided nylon ($$$) hose. I would have to look back at the rule book, but it is at the back in the general guidelines. I doubt most places would give you any grief; I'm just letting you know.

 

[Dan@PPE]

Wow! Tell the truth now so people don't buy PPE pumps that really aren't good at all. I have never had one work or seen one last more then a year.

Ok! I will tell you the truth...... I have had my pump on my truck since dec of 2005. Sorry it has been 6 years and 7 months.......


Are you implying that I am lying? I dont take kindly to that....

 

[TeaBagger2006]

last time i was around dans truck i heard the same annoying buzz that mine has....

 

[Dan@PPE]

last time i was around dans truck i heard the same annoying buzz that mine has....

How long have you had yours?

 

[chevyburnout1]

My first PPE pump was loud and failed about five months in. However a quick warranty fix and it has been the quietest its ever been for the passed three years.