FI Fuel setup. 800-900rwhp
11-14-2012, 07:33 PM
#1
FI Fuel setup. 800-900rwhp Plan on doing a twin turbo setup with an AES390 next spring. I need a fuel system that will keep up. Have a couple of questions. Goal power is 8-900rwhp
My plan was to run a Magna fuel 4303 pump. Their FPR. braided lines, fast fuel rails, with 80# injectors.my questions are..
1. i plan running a -10 feed and a -8 return, will this be enough? And how much barided line will i need in ft?
2. How can i run a line from the tank to the pump? is there a fitting i have to put into the bottom of the tank?
3. How do i run my lines from the pump to the rails and FPR? a diagram would be great. for example. do i run from the pump to the FPR to the rails and then back to the pump? go to the front of the rails or rear for the feed etc..
4. Can i get this done for $1500 or less? i have a tight budget m working on.
Thanks.
My plan was to run a Magna fuel 4303 pump. Their FPR. braided lines, fast fuel rails, with 80# injectors.my questions are..
1. i plan running a -10 feed and a -8 return, will this be enough? And how much barided line will i need in ft?
2. How can i run a line from the tank to the pump? is there a fitting i have to put into the bottom of the tank?
3. How do i run my lines from the pump to the rails and FPR? a diagram would be great. for example. do i run from the pump to the FPR to the rails and then back to the pump? go to the front of the rails or rear for the feed etc..
4. Can i get this done for $1500 or less? i have a tight budget m working on.
Thanks.
I need some good fuel setup tips also 
12-06-2012, 10:26 AM
#7
If you ran both pumps all the time but with a return style fuel system, this should be okay shouldn't it? I think most don't like to run both pumps at the same time with a stock style system because its hard on the pumps and heats the fuel up.
Any experts want to weigh in on this idea? I have never done it but was planning on simply running two intake pumps all the time with a return system and regulator at the rails, is this okay to do?
Any experts want to weigh in on this idea? I have never done it but was planning on simply running two intake pumps all the time with a return system and regulator at the rails, is this okay to do?
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12-06-2012, 06:05 PM
#9
How much could these pumps really be heating up the fuel?
I'd rather run an inline cooler on the return line than run a hobbs, but that's just me i guess. A hobbs switch not turning on and running lean seems much worse than running warm fuel. Or is there something else to it?
I'd rather run an inline cooler on the return line than run a hobbs, but that's just me i guess. A hobbs switch not turning on and running lean seems much worse than running warm fuel. Or is there something else to it?
12-06-2012, 08:09 PM
#10
Each pump draws over 100 watts of power. Hold your hand on a 100 watt light bulb & you will see the heat it produces.
Warm fuel can cause the pump to cavitate, then they do not pump, causing similar problems.
There is a lot more to it, but I'm just telling you what works.
Warm fuel can cause the pump to cavitate, then they do not pump, causing similar problems.
There is a lot more to it, but I'm just telling you what works.
12-06-2012, 09:40 PM
#12
I'd hope these pumps don't heat up like a 100 watt bulb, or otherwise they are very poorly designed. plus two 100 watt bulbs in 16 gallons of fuel are going to take a while to warm up. Not only that but when the fuel is running the length of the car and back in a metal line, I'd have to think that would cool it down quit a bit.
Now granted anytime you pressurize something it causes heat, but when you lower the pressure it also cools.
In my experience pumps last longer when they are on and running like they were designed for, and constantly turning on and off drastically shortens life.
Now I think hobbs switches work and many use them, but I don't think it is the only solution. For example, my duramax. It has a fuel cooler on the return line before the gas tank. I have added additional fuel pumps on it to supply the high pressure cp3, and it runs constantly, and many others run the same solution with out any issues.
Now granted anytime you pressurize something it causes heat, but when you lower the pressure it also cools.
In my experience pumps last longer when they are on and running like they were designed for, and constantly turning on and off drastically shortens life.
Now I think hobbs switches work and many use them, but I don't think it is the only solution. For example, my duramax. It has a fuel cooler on the return line before the gas tank. I have added additional fuel pumps on it to supply the high pressure cp3, and it runs constantly, and many others run the same solution with out any issues.
12-06-2012, 10:23 PM
#13
Any energy (electricity consumed) is converted to heat. This is plain physics.
Watts of electric consumed = Watts of heat. No way around it.
A larger return line does virtually nothing for fuel cooling.
If the line was conductive, it would give off more heat if it was bigger.
Rubber lined hose is a good insulator, not going to make much difference by changing size.
Yes a fuel cooler can help, your call...
Your diesel has one because the fuel is pressurized to approx 20,000psi, generating a lot of heat. Diesel also changes viscosity w/ heat altering the amount of fuel injected as well as how it ignites... but it also does not vaporize at lower temps like gasoline. The lower boiling point of gas is what causes problems with large pumps & heat.
Trying to help you out, but you have to make your own choices.
If you are interested in buying a complete system that works give me a call.
Watts of electric consumed = Watts of heat. No way around it.
A larger return line does virtually nothing for fuel cooling.
If the line was conductive, it would give off more heat if it was bigger.
Rubber lined hose is a good insulator, not going to make much difference by changing size.
Yes a fuel cooler can help, your call...
Your diesel has one because the fuel is pressurized to approx 20,000psi, generating a lot of heat. Diesel also changes viscosity w/ heat altering the amount of fuel injected as well as how it ignites... but it also does not vaporize at lower temps like gasoline. The lower boiling point of gas is what causes problems with large pumps & heat.
Trying to help you out, but you have to make your own choices.
If you are interested in buying a complete system that works give me a call.
12-11-2012, 05:45 PM
#16
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Each pump draws over 100 watts of power. Hold your hand on a 100 watt light bulb & you will see the heat it produces.
Warm fuel can cause the pump to cavitate, then they do not pump, causing similar problems.
There is a lot more to it, but I'm just telling you what works.
Warm fuel can cause the pump to cavitate, then they do not pump, causing similar problems.
There is a lot more to it, but I'm just telling you what works.
12-12-2012, 03:28 AM
#18
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i really don't understand all of this. Lonnies and even NastyN8 can provide a complete fuel system, everything included, and you will not have to worry about heating up of fuel etc, etc.
they have been doing this for years and have built countless setups that have been flawless. Do some digging and find out what the factory fuel pump draws in current, I bet it is 6~8 amps @ 12 Volts. Volts * Amps = Power = 72~96 Watts. This really isn't much heat added at all when you are flowing fuel through the pump at 100 Liter/hour or even 50 liter/hour.
water cooling on a computer with a flow of 1 gallon/minute (3.8 liter/min) which equates to 228 Liter/hour cools a 100 Watt cpu with water outlet temperatures of 40 Celsius, generally speaking.
they have been doing this for years and have built countless setups that have been flawless. Do some digging and find out what the factory fuel pump draws in current, I bet it is 6~8 amps @ 12 Volts. Volts * Amps = Power = 72~96 Watts. This really isn't much heat added at all when you are flowing fuel through the pump at 100 Liter/hour or even 50 liter/hour.
water cooling on a computer with a flow of 1 gallon/minute (3.8 liter/min) which equates to 228 Liter/hour cools a 100 Watt cpu with water outlet temperatures of 40 Celsius, generally speaking.
12-12-2012, 10:00 AM
#20
ZL1killa,
To answer your question, i like to do things myself so I know they are done right, and it saves money. If i screw something up its no one's fault but my own.
Not attacking anyone, but the only responses I see in the fuel section from venders is "call me i can help". Once you call these venders their only solution is to spend more money and more money. I prefer not to send my money to a vendor that is overpriced, with no knowledge or factual answers when you ask a question.
How are people like skinnies making 900hp with simple and cheap setups, but when i call a vendor it is over $1500 to do the same?????
To answer your question, i like to do things myself so I know they are done right, and it saves money. If i screw something up its no one's fault but my own.
Not attacking anyone, but the only responses I see in the fuel section from venders is "call me i can help". Once you call these venders their only solution is to spend more money and more money. I prefer not to send my money to a vendor that is overpriced, with no knowledge or factual answers when you ask a question.
How are people like skinnies making 900hp with simple and cheap setups, but when i call a vendor it is over $1500 to do the same?????