Electric Fuel Pump: Holy power gain Batman!!

[wmoguy]

I finally got around to putting my electric fuel pump on my pickup. HOLY POWER GAIN BATMAN!

When I did the top end of this motor last fall, I did slap a new Airtex lift pump on this thing (yes, I now know Airtex sucks) Anyway, tonight I spent about 2 hrs and a few beers slapping the electric pump & pressure regulator on the pickup. One sure has to love the air purging of an electric fuel pump vs. mechanical pump. Pump fired, the starter spun for maybe 3 seconds, and she fired right up. Try that with a mechanical pump after having return lines removed, and all fuel lines at the engine!

Anyway, on the test drive I was stunned at the power gain. Boost comes on faster and harder without a doubt. Prior to the electric pump I was maxed out at around 15-16psi unloaded, and 1100 degrees EGT temp. Now? Well after I warmed up the IDI, she pegged 20 psi before I realized it, and EGTs slid past 1300 FAST. Theres NO DOUBT I gained HP and low end torque from the switch!

Anyway, nothing important, except to say if you've been on the fence to go Electric Fuel pump; DO IT! You'll be super pleased you did!


BTW, here's the pump I'm using: http://turbowerx.com/Scavenge_Pumps/Base-Model_Pump/Base-Model_Pump.html Since some of the more traditional pumps used by members here are not very compatible w/ WMO blends; I thought I'd give this guy a whirl.

 

[itsacrazyasian]

I'm curious to why its not compatible with atf.

 

[subway]

Awesome feedback, do you have a pressure gage on it? Do you think part of the gain is from the variable pressure regular?

 

[G. Mann]

That is a turbo oil scavange pump by the listing. Should have plenty of staying power. What kind of fuel pressure are you making with it???

Sounds like your old pump was starving the IP and now you are getting enough fuel to make power.

How much for the pump, if you don't mind sharing that?

 

[wmoguy]

Awesome feedback, do you have a pressure gage on it? Do you think part of the gain is from the variable pressure regular?

Maybe, but I actually don't have the boost pressure signal setup on it. I'm not sure I will actually because it's 1:1. So 5psi at idle, + 15 psi boost under load gives me 20psi, which is way to much on the IP. I figure 6psi or so all the time should keep the IP really happy.

That is a turbo oil scavange pump by the listing. Should have plenty of staying power. What kind of fuel pressure are you making with it???

Sounds like your old pump was starving the IP and now you are getting enough fuel to make power.

How much for the pump, if you don't mind sharing that?

I'm actualy not 100% sure what pressure I"m at. The regulator I used came with a "light" spring installed, which IIRC was variable from 4psi-15psi. For tonight I just screwed it out quite a ways. I have an aftermarket filter head on my pickup, and tomorrow I need to go get a bigger Hex wrench to remove the spare outlet plug in the filter head so I can install the Fuel Pressure guage. As for the pump price, it's $249 on his website. I mighta got a little better price though because I have 4 of his pumps in total I mainly picked the pump for this application figuring that if it can pump heavy oil all day long at high pressures; it can certainly handle pumping WMO blends thru my IDI

 

[racer30]

I wonder about diesel and or atf mix in the wmo, I was going to run some atf in my system, just seems kinda strange for it say no atf

 

[sle2115]

My truck had an airtex on it when I got it. I never thought much about it, but always wondered about smoke, my truck made NONE! Heavy load, etc. produced no hard smoke, not that I wanted to roll coal, but I figured there was more power to be had. EGT's were very low as well. It finally died and I plumbed in the Carter I'm now running, put a Permacool filter pre-pump and ran braided stainless line everywhere I could. I had the same results, would have thought I put a couple extra cylinders in there! So, I know what you are saying! Oh, and while mine still doesn't roll coal, it does let off a little black haze when pullilng hard now, EGT's are still in the 600 - 700 range, but prior to the fuel pump install, they would rarely move the needle off 300! Hope to update the fuel system and install my turbo soon, once it's rebuilt.

 

[wmoguy]

My truck had an airtex on it when I got it. I never thought much about it, but always wondered about smoke, my truck made NONE! Heavy load, etc. produced no hard smoke, not that I wanted to roll coal, but I figured there was more power to be had. EGT's were very low as well. It finally died and I plumbed in the Carter I'm now running, put a Permacool filter pre-pump and ran braided stainless line everywhere I could. I had the same results, would have thought I put a couple extra cylinders in there! So, I know what you are saying! Oh, and while mine still doesn't roll coal, it does let off a little black haze when pullilng hard now, EGT's are still in the 600 - 700 range, but prior to the fuel pump install, they would rarely move the needle off 300! Hope to update the fuel system and install my turbo soon, once it's rebuilt.

Thats kind of how I was too. I was actually getting bored w/ the power of my pickup as it was, and was starting to think "this is as good as it gets w/o a major engine buildup" Boy was I ever wrong!

I've still got a little air intrusion to work out somewhere. I have a hunch it's the FSV, and plan on changing that out this afternoon (time permitting) How long does it typically take for all the air to work it's way out of the system if it's been completely purged like I did last night? I remember I had to drive quite a bit to work out all the air in my setup once I had the top end rebuilt. I'm just wondering if I need to give it more time before being concerning of an actual air intrusion?

 

[wmoguy]

Well shoot. I have a flaw in my system.......This pump is to strong.

I put my fuel pressure gauge on this morning, and even totally letting the fuel pressure regulator go all the way out, I can't get my Fuel Pressure (after the filter-Pre IP) below 10psi. From my understanding I'm bumping my timing by doing this..... argh.......

I am wondering if the 1/4" line I T'd into for the return line just isn't big enough to handle the flow? I had really hoped to preserve the stock Fuel Lines and return lines & use the Fuel selector valve, but it sounds like that may not be possible. Any idea's on ways I could save the FSV and stock lines, and get my IP Inlet fuel pressure down? I suppose I could just put a restrictor on the filter inlet line but given this is a positive pressure pump, it might hurt it, and put too much pressure on the 1/4" fuel return line

 

[TWeatherford]

Why not just time your truck at 10 psi? Can you tell the timing is advanced by sound or just think it might be?

You could plumb a pressure regulator with bypass before your ip, and feed the bypass line back to the tank, (I wouldn't just t it in between the lift pump and the tank or any air sucked up when you corner ******* a low tank won't be able to escape without going into the engine).

 

[itsacrazyasian]

wmo-

When i plumbed my return style fuel pressure regulator, i plumbed the return of the regulator after the engine and check valve in the rear. So basically the pressure feed would head to the stock line going to the filter head and ip. The return was T'd into the line coming from the rear of the engine which is 5/16's. In my case it was plenty for return flow. But i was running a Raptor fuel pump meant for WVO.

 

[wmoguy]

Here's a picture of the tangled mess. I've got a bunch of clear lines on it as Im chasing down an air intrusion somewhere. BBC fuel plate to be installed tomorrow, and I'll remove the crap airtex pump and line at that time (yes I know I'm probably destroying that Airtex pump leaving it on there right now w/o fuel to it, but I really dont care)

You must be registered for see images attach

 

[Ididriver]

Man your making me want to buy one now!!
Too bad I just dropped 2 grand fixing my truck

 

[dagreendeville]

Sle is that a carter electric pump your talking about? If so how are you liking it? And wmo what turbo are you using?

 

[GRU]

man i just cant decide on one of the facet pumps from genlightning or one of those turbowerks. i run 100% wvo in the summertime and usually go to a mix of #2 and wmo in spring/fall. i dont want to drop the coin on the turbowerks but im hearing alot about the facets not holding up to wmo/wvo usage. and im wanting to get a setup for my cummins swap dually. thats the bigger priority honestly.