Thread: Fuel system discussion

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2016-06-03 21:42:05

#11

Dala

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Electronic returnless fuel system ftmfw

But if we get back to the OP, I would run #2.

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2016-06-03 22:19:31

#12

zeneffect

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Originally Posted by unijabnx2000

#2 is essentially like stock and how mine is now,

but I was watching a mighty car mod video a while back and they briefly said they use #1 because you wont heat up your fuel by allowing it to cycle into the engine bay and then back to your tank. I think it the turbo V8 Stagea build video. Thats also how they did the fuel system on Super Gramps.

The most of the heat actually comes from the fuel pump, not the engine/rail. #1 will still generate in-tank heat as its not fully returnless.

Last edited by zeneffect on 2016-06-03 at 22-21-29.

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2016-06-04 06:34:14

#13

unijabnx2000 Online/offline status of unijabnx2000 is unknown

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Originally Posted by zeneffect

Originally Posted by unijabnx2000
#2 is essentially like stock and how mine is now,

but I was watching a mighty car mod video a while back and they briefly said they use #1 because you wont heat up your fuel by allowing it to cycle into the engine bay and then back to your tank. I think it the turbo V8 Stagea build video. Thats also how they did the fuel system on Super Gramps.

The most of the heat actually comes from the fuel pump, not the engine/rail. #1 will still generate in-tank heat as its not fully returnless.

Blog Post Temperature testing the Radium Fuel Surge Tank

Based on that article though... you heat the fuel more when you have an out-of-tank pump than you do when the pump is submerged in the fuel.

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2016-06-04 15:30:57

#14

zeneffect

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Originally Posted by unijabnx2000

Originally Posted by zeneffect
Originally Posted by unijabnx2000
#2 is essentially like stock and how mine is now,

but I was watching a mighty car mod video a while back and they briefly said they use #1 because you wont heat up your fuel by allowing it to cycle into the engine bay and then back to your tank. I think it the turbo V8 Stagea build video. Thats also how they did the fuel system on Super Gramps.

The most of the heat actually comes from the fuel pump, not the engine/rail. #1 will still generate in-tank heat as its not fully returnless.

Blog Post Temperature testing the Radium Fuel Surge Tank

Based on that article though... you heat the fuel more when you have an out-of-tank pump than you do when the pump is submerged in the fuel.

I guess it would be dependant on the design of the exfernal.pump, but yes they do run hot I'd you have ever touched one.

The point os, you are making a loop either way in which heat is being transmitted by the fuel, dumping it back to the tank will cause heat build up in both scenerios.

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