fuel system pictures

[Mdub707]

I should get some pics to post up, just to confuse the hell out of all of you. I feed from the front and the back... just at different times... haha


Windrunner, so you actually have 3 pumps on your truck right now? haha. So you bypassed the OEM pump completely, except for fuel return right? Anyone even know why the return is routed through the pump?

 

[windrunner408]

No I have removed the OEM pump and fuel bowl. I just tied my return line from the regulator to the factory line that use to connect to the OEM pump. I just didnt see a reason to pay the extra cost and run line the rest of the way and only drop the tank for that. The bracket I made for the A1000 allows it to be bolted right into the factory location of the OEM pump.

 

[kyle43335]

I should get some pics to post up, just to confuse the hell out of all of you. I feed from the front and the back... just at different times... haha


Windrunner, so you actually have 3 pumps on your truck right now? haha. So you bypassed the OEM pump completely, except for fuel return right? Anyone even know why the return is routed through the pump?

for fuel temps.

to keep fuel at a desired temp. if the fuel being pulled from the tank is to cold,return engine fuel is re entered through the hfcm,to bring temps up.

 

[faster6.0]

Pics of stage 1

 

[Mdub707]

for fuel temps.

to keep fuel at a desired temp. if the fuel being pulled from the tank is to cold,return engine fuel is re entered through the hfcm,to bring temps up.

Is this still found to be necessary, even with the removal of the heater on all of the HFCM's? You'd think the fuel going up to the motor would be heated somewhat before being returned to the tank right?

Does it bypass the HFCM sometimes and not others? I've never really looked at the stock fuel pump much sorry...

 

[Marty]

It speeds up the heating process. IE: at idle in cold temps it can be using fuel that is already warmed up.

Eventually the fuel in the tank warms up, just takes a lot longer. It is not required.

I feed the rear, return the front.

 

[Mdub707]

Ok, but how is it heating it in the HFCM if there is no heater there....? Residual heat off of the motor for the pump or what?

 

[kyle43335]

Ok, but how is it heating it in the HFCM if there is no heater there....? Residual heat off of the motor for the pump or what?

yes the returned fuel being right in the engine compartment is,and will be alot warmer,quicker than the tank would.

we are basicly doing the same thing with full regulated return. returning warm fuel to the tank,warming everything up much quicker,because we are closer to the heat source.

i in fact believe our way it better,with full reg return. fuel warms up faster than just the little piss stream of return fuel the stock system does. running the fuel right through the heads is absorbing more heat then just what the factory fuel bowl absorbs,being above the engine.

make sense?

 

[SSpeeDEMONSS]

So at what point do you feel a fuel cooler is needed on the return?

Garrett

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[kyle43335]

So at what point do you feel a fuel cooler is needed on the return?

Garrett

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long hauling at wot. lol

your prolly refrencing to cr engines with there coolers. the thing is we dont return fuel that has just been pressurized to 24k. it takes long to get to (to hot) high temps.

 

[Mdub707]

yes the returned fuel being right in the engine compartment is,and will be alot warmer,quicker than the tank would.

we are basicly doing the same thing with full regulated return. returning warm fuel to the tank,warming everything up much quicker,because we are closer to the heat source.

i in fact believe our way it better,with full reg return. fuel warms up faster than just the little piss stream of return fuel the stock system does. running the fuel right through the heads is absorbing more heat then just what the factory fuel bowl absorbs,being above the engine.

make sense?

Makes perfect sense. I guess I was just trying to clarify for myself why the fuel needs to be returned through the HFCM, when there is no heater there anymore, and basically it sounds like it doesn't need to be.

I could see a true RR setup heating fuel better than the stock setup for sure.

 

[SSpeeDEMONSS]

long hauling at wot. lol

your prolly refrencing to cr engines with there coolers. the thing is we dont return fuel that has just been pressurized to 24k. it takes long to get to (to hot) high temps.

So even towing across the desert when air temps are 115-120+ and road temps are way higher it still isn't needed? I wasn't referring to CR engines either.

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[Mdub707]

I wouldn't think it's needed. All the heat in the CR systems come from the sheer pressure. On the 6.0 the pressure is being built past the return on it anyways, I can't imagine it getting that hot... Have you had issues with this?

 

[kyle43335]

So even towing across the desert when air temps are 115-120+ and road temps are way higher it still isn't needed? I wasn't referring to CR engines either.

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with between 29 and 40 gallons of fuel,the tank acts like a big heat sink,so to speak. its hanging down in the path of air,flowing under the truck.

i have towed with my black truck,a couple hundred miles with rr. at no time when i purposely stopped to check to see fuel temps in the tank,were they ever boiling hot.

maybe if you got down to 1/4 tank you might run into alittle heat issue. however on the desert,you prolly dont want to be that low on fuel anyway. plus your moving at highway speeds,so the road temps wouldnt really effect anything,unless you were just sitting,creating heat soak. not to mention your not creating higher engine temps while sitting,so thats still a mute point.

if you question it that strongly? test the theory yourself,or simply put a cooler in,if it makes you feel better. however in cold climates you will gell up,just like the dmax boys do. unless you treat the chit out of your fuel...

 

[kyle43335]

I wouldn't think it's needed. All the heat in the CR systems come from the sheer pressure. On the 6.0 the pressure is being built past the return on it anyways, I can't imagine it getting that hot... Have you had issues with this?

exactly my point!!!!

 

[SSpeeDEMONSS]

with between 29 and 40 gallons of fuel,the tank acts like a big heat sink,so to speak. its hanging down in the path of air,flowing under the truck.

i have towed with my black truck,a couple hundred miles with rr. at no time when i purposely stopped to check to see fuel temps in the tank,were they ever boiling hot.

maybe if you got down to 1/4 tank you might run into alittle heat issue. however on the desert,you prolly dont want to be that low on fuel anyway. plus your moving at highway speeds,so the road temps wouldnt really effect anything,unless you were just sitting,creating heat soak. not to mention your not creating higher engine temps while sitting,so thats still a mute point.

if you question it that strongly? test the theory yourself,or simply put a cooler in,if it makes you feel better. however in cold climates you will gell up,just like the dmax boys do. unless you treat the chit out of your fuel...

I was just asking. I'm in the process of pulling my 6.0 out anyways so I don't have any worry about it. As for cold and gelling, well I don't have that problem where I am.

Garrett

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[kyle43335]

I was just asking. I'm in the process of pulling my 6.0 out anyways so I don't have any worry about it. As for cold and gelling, well I don't have that problem where I am.

Garrett

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i hear ya man. you will be fine.

 

[SSpeeDEMONSS]

i hear ya man. you will be fine.

I know, once I get rid of the 2 extra cylinders and 24 extra valves I will be good to go. Hahaha.

Garrett

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