Criticise my fuel system please!
#1
Criticise my fuel system please!
Setting up a fuel system, want to know if this is going to work good. The car is a 71 Nova with a 6.0 and single turbo. 600RWP on E85 so figure 900RWP for good measure due to the 30% more fuel needed.
--Fuel cell with 2 -8 outlets
--seperate -8 feed to pumps
--2 gss340 255 walbro pumps with seperate relays both always on.
--rear mounted 13101 regulator after the pumps to eliminate boiling the fuel
under severe street duty. Short -6 return to the top of the cell
--aftermarket filter of some sort (would a stock filter flow enough??)
--single -8 feed with a rail crossover with one end of the rail capped.
I know that most put the regulator after the rails due to more consistent pressure but I see some high hp cars over on Pro-touring running the regulator at the tank to avoid heating the fuel. This is a 95% street car so I need to avoid that at all costs.
See any issues I should deal with before ordering.
--Fuel cell with 2 -8 outlets
--seperate -8 feed to pumps
--2 gss340 255 walbro pumps with seperate relays both always on.
--rear mounted 13101 regulator after the pumps to eliminate boiling the fuel
under severe street duty. Short -6 return to the top of the cell
--aftermarket filter of some sort (would a stock filter flow enough??)
--single -8 feed with a rail crossover with one end of the rail capped.
I know that most put the regulator after the rails due to more consistent pressure but I see some high hp cars over on Pro-touring running the regulator at the tank to avoid heating the fuel. This is a 95% street car so I need to avoid that at all costs.
See any issues I should deal with before ordering.
#2
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Fuel
Setting up a fuel system, want to know if this is going to work good. The car is a 71 Nova with a 6.0 and single turbo. 600RWP on E85 so figure 900RWP for good measure due to the 30% more fuel needed.
--Fuel cell with 2 -8 outlets
--seperate -8 feed to pumps
--2 gss340 255 walbro pumps with seperate relays both always on.
--rear mounted 13101 regulator after the pumps to eliminate boiling the fuel
under severe street duty. Short -6 return to the top of the cell
--aftermarket filter of some sort (would a stock filter flow enough??)
--single -8 feed with a rail crossover with one end of the rail capped.
I know that most put the regulator after the rails due to more consistent pressure but I see some high hp cars over on Pro-touring running the regulator at the tank to avoid heating the fuel. This is a 95% street car so I need to avoid that at all costs.
See any issues I should deal with before ordering.
--Fuel cell with 2 -8 outlets
--seperate -8 feed to pumps
--2 gss340 255 walbro pumps with seperate relays both always on.
--rear mounted 13101 regulator after the pumps to eliminate boiling the fuel
under severe street duty. Short -6 return to the top of the cell
--aftermarket filter of some sort (would a stock filter flow enough??)
--single -8 feed with a rail crossover with one end of the rail capped.
I know that most put the regulator after the rails due to more consistent pressure but I see some high hp cars over on Pro-touring running the regulator at the tank to avoid heating the fuel. This is a 95% street car so I need to avoid that at all costs.
See any issues I should deal with before ordering.
http://s243.photobucket.com/albums/f.../APs%20Engine/
#6
The blur--how do you explain the new Zo6 and other GMs having the fuel returning either in the tank or near the tank for nearly ten years? Fuel pressure seems steady in those??
I know how Aeromotive recommends it but not looking to do it that way.
Any others have personal experience returning the fuel before the rails?
I know how Aeromotive recommends it but not looking to do it that way.
Any others have personal experience returning the fuel before the rails?
#7
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iTrader: (16)
That is because the GM Vette design is based on cost & for evaporative emissions purposes, not best performance. They will only work with moderate HP before it loses pressure due to the poor regulator location.
There is a reason why many high HP guys convert their late C5 Vettes to the 97 return style system.
There is a reason why many high HP guys convert their late C5 Vettes to the 97 return style system.
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#8
You also need to remember that with GM's returnless style, the computer is manipulating pump speed with voltage to keep fuel flow consistent with engine speed (consumption). There are a few "EFI Guru's" that prefer to place the regulator before the rails in aftermarket style systems -- but they are in the minority. You had also be running a bypass with the largest return orifice available so that you minimize the restriction back to the tank -- keeping the fuel a tad cooler.