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3 gallons or less in your tank!!

Fords4life said:
Last season while working on high elevation header tunes with dave at hurricane, i discovered that my fuel preasure increased at idle and when not underboost by installing return line to top of pump area. Am running a areomotive pump, this would only happen when tank was half full or higher, to cure this i added a "t" fitting at point where it used to dump into tank, thought i would share this info incase others are running richer after higher pump install.
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Were you using the stock regulator?

There is a reason Hurricane sells the whole larger fuel pump thing as a kit. The stock regulator can't keep up with his big pumps along with the stock elbow. He provides a higher flow fuel regulator and larger fuel elbow.
 

Yes return at origanil location and above pump, 5/16th line regulator to 5/16th "t" to stock red elbow drilled to3/16th and 5/16th line to black elbow above pump, "t" fitting from local hardware store. Have installed a adjustable fuel regulator and afr gauge for this season.
 
Normaly yes i would buy a "kit" from the vendor, but i had this pump sitting around from a prior project and thought why not try it. I will say a person will NEVER go wrong dealing with Dave at Hurricane, he goes above and beyond for his customers!!! Hard to find in todays age.
 
I should have included more info as to why i used a "t" fitting, did not have a psi increase with return at stk location with the areomotive pump alone. Was having issues with sled cutting out, like fuel starvation, so i thought return fuel at the basket to keep sump full, but when i did this fuel pressure increased when i sat on the seat. Why?? Conclusion i came to is this, with the restrictive vent system on these sleds, and i say this because, ever notice how long it wistles to vent off the pressure, anyway when i sat on the seat it forced the gas back towards the regulater, restricting it. That is why the "t" fitting, benefit of gas direct to sump at half tank or less, and a path for return over half a tank. As a newbie i will apologize now for my lack of english skills and spelling yes im a rural " cowbilly" never wasted time on trival things like spelling!! Time needed for problem solven and feeling the speed and thrust of vehicles, wether on wheels or by track.
 
Fords4life said:
I should have included more info as to why i used a "t" fitting, did not have a psi increase with return at stk location with the areomotive pump alone. Was having issues with sled cutting out, like fuel starvation, so i thought return fuel at the basket to keep sump full, but when i did this fuel pressure increased when i sat on the seat. Why?? Conclusion i came to is this, with the restrictive vent system on these sleds, and i say this because, ever notice how long it wistles to vent off the pressure, anyway when i sat on the seat it forced the gas back towards the regulater, restricting it. That is why the "t" fitting, benefit of gas direct to sump at half tank or less, and a path for return over half a tank. As a newbie i will apologize now for my lack of english skills and spelling yes im a rural " cowbilly" never wasted time on trival things like spelling!! Time needed for problem solven and feeling the speed and thrust of vehicles, wether on wheels or by track.
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You may have been pinching the return hose when sitting on the seat and that is why fuel pressure increased
 
So I read through these last two pages and think " I ran for 5K miles with a bigger pump and return line to basket and stock regulator" .. Not sure where the issue could be or if there is one with this mod, unless you have a pinched line maybe? OR pinched vent line.. ONLY time I could see any issue with the return line MOD (even at 1/4" line) is when the sled is completely full of gas like burped and FULL. Is it possible the fuel is so full in the tank that it covers the return fitting at top of basket? This could cause a increase in fuel pressure? This will change after a few miles and the fuel level drops. Also the metal fittings that stick down slightly more then the plastic into the tank further could be more susceptible to issues with fuel levels full to top. Not sure how many are using this fitting and if it even could cause a issue? Just wanted to post that several have run this mode for thousands of miles without issue with larger pumps also.. Not saying a new pump(with new specs) is not a possible issue to be aware of.
 
jonlafon1 said:
So I read through these last two pages and think " I ran for 5K miles with a bigger pump and return line to basket and stock regulator" .. Not sure where the issue could be or if there is one with this mod, unless you have a pinched line maybe? OR pinched vent line.. ONLY time I could see any issue with the return line MOD (even at 1/4" line) is when the sled is completely full of gas like burped and FULL. Is it possible the fuel is so full in the tank that it covers the return fitting at top of basket? This could cause a increase in fuel pressure? This will change after a few miles and the fuel level drops. Also the metal fittings that stick down slightly more then the plastic into the tank further could be more susceptible to issues with fuel levels full to top. Not sure how many are using this fitting and if it even could cause a issue? Just wanted to post that several have run this mode for thousands of miles without issue with larger pumps also.. Not saying a new pump(with new specs) is not a possible issue to be aware of.
Click to expand...

Some pumps flow more volume and pressure than others. Depends on the brand and model.

I know Hurricane said that they had to change the regulator with their pump along with the different elbow was because the stock regulator and elbow wouldn't flow enough for the pump and it would increase the fuel pressure at idle and run rich as well.

The issue with Fords is that a longer run has more resistance thereby having enough back pressure to increase the pressure at the rail. Longer runs have more resistance not to mention the possibility of a pinch point as has been said. He was right on the edge there like he found. And from the sounds of it, sitting on the tank also added a few more pounds of resistance as well.

justinator found the new pump he's using to have WAY more pressure, and from the sounds of it needing 3/8 return fittings with a big regulator needed to work with it all too. So its a case by case basis depending on the pump, regulator and return plumbing used/needed.
 
I see some guys saying they are using 5/16" fuel line to run to the new return location on the pump. That size appear it will fit fine on the fuel pressure regulator but would be too large for the plastic elbow fitting on the other end. What are you guys using to clamp that end down if you are using 5/16 hose? The plastic elbow fitting is made for 1/4" hose.
 
Well said knapp, and thank you for all your wisdom you share with us. In my case with 5/16 hose i use oem type clamp smaller than hose, force it on and crimp it.
 
Fords4life said:
Well said knapp, and thank you for all your wisdom you share with us. In my case with 5/16 hose i use oem type clamp smaller than hose, force it on and crimp it.
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I bought 1/4" hose for mine but I am trying to decide if I should get 5/16" instead. I would think the biggest restriction would be the elbow fitting, not the hose. The ID of the elbow is smaller than the hose.
 
You are correct, only going to flow what the small elbow will alow, but in my case im using two.
 
twyztid said:
I see some guys saying they are using 5/16" fuel line to run to the new return location on the pump. That size appear it will fit fine on the fuel pressure regulator but would be too large for the plastic elbow fitting on the other end. What are you guys using to clamp that end down if you are using 5/16 hose? The plastic elbow fitting is made for 1/4" hose.
Click to expand...
If you feel the need to use 5/16 fuel line get a metal fitting made for 5/16 line. As I said above the metal style fitting hang further into the basket/tank.
 
jonlafon1 said:
If you feel the need to use 5/16 fuel line get a metal fitting made for 5/16 line. As I said above the metal style fitting hang further into the basket/tank.
Click to expand...
Do you see the need for 5/16" fuel line for the return for a TD Power Trail 270hp tune using the stock fuel pump?
 
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