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Best replacement fuel tank??
#1
Need a new fuel tank for my son's 73 project car and want to know who makes the best replacement tank??
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#2
I just got one from Don at OMS (Ohio Mustang Supply).

Go for the better tank - not the cheapest IMHO. Still comparable in price. And Don has helped me too many times for me to not buy from him. Always honest with me.

Ray

1971 Boss 351  
1972 Q code 4 speed convertible 
1971 Mustang Sportsroof  351-2V FMX 
1971 Hardtop (parts car)
1973 Mach 1 (parts car)
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#3
Thanks Ray…….we want the best tank available. We will be modifying it for an in tank pump for a future fuel injection system.
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#4
(02-19-2014, 05:35 PM)Boss1Ray Wrote: I just got one from Don at OMS (Ohio Mustang Supply).

Go for the better tank - not the cheapest IMHO. Still comparable in price. And Don has helped me too many times for me to not buy from him. Always honest with me.

Ray

+1
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#5
Don is the man who can set you up.
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#6
FYI, you do not need an in-tank pump for a reliable EFI setup. You can simply add a return line to the tank and use an external high pressure pump, such as a Walbro GSL392, a 255 liter/hr pump commonly used for this sort of thing. These pumps do not run hot and do not require submersion in the tank either.

1971 Mustang fastback: 10.3:1 C90E 408W hydroller - CDAN4 EEC-V w/EDIS8, girdled, lowered and caged
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#7
I suggest you check Robbmac in Nevada for their pumps for the 351c....they have pickups with returns also. Best you can get for the Cleveland
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#8
Mesozoic;167153 Wrote:FYI, you do not need an in-tank pump for a reliable EFI setup. You can simply add a return line to the tank and use an external high pressure pump, such as a Walbro GSL392, a 255 liter/hr pump commonly used for this sort of thing. These pumps do not run hot and do not require submersion in the tank either.


Thanks for the info…….I have read about Walbro pumps but have heard that there can be fuel starvation issues when running external pumps???


In your opinion, would an in tank pump be a better option if cost is not a consideration??

Since we are starting with a new tank, it's not really a big deal to cut the top, install internal baffles and weld in a plate to mount an in tank pump.
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#9
Personally, I've never encountered any fuel starvation myself, but that is largely a function of how well the pickup tube inside the tank is kept submerged in fuel. While many stock vehicles come with in-tank pumps and I believe the reasoning for this is in reduction of pump noise, possibly pump cooling, and reduced cost (no need to spend much time designing baffles and sumps), the effectiveness of in-tank vs inline is a long standing debate.

All things considered, it's far more convenient to be able to service the pump and attached filters without having to remove the tank. Wiring is also simpler when the pump is external. I've been running an inline high pressure Walbro for years and drive like a maniac. Very reliable setup with the Walbro.

Here's a few shots of how I setup the external inline pump on my '71. Note that the tank is sumped and that is where the inlet and outlet for the main pump feed and return are plumbed. The pump is mounted in front of the tank using 1/8" aluminum brackets. There is a gentleman on Pirate4x4.com named "carslut" that manufactures nice Walbro pump brackets (seen here). Also note that the pump is iso-mounted using rubber isolators.
   
   
   

1971 Mustang fastback: 10.3:1 C90E 408W hydroller - CDAN4 EEC-V w/EDIS8, girdled, lowered and caged
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#10
<<Thanks for the info…….I have read about Walbro pumps but have heard that there can be fuel starvation issues when running external pumps???>>

The manufacturer of my efi system recommends the return line vice PWM (Pulse Width Modulated) systems. Using return style systems with external pumps don't encounter the vapor lock/fuel starvation issues you are describing.

For the 73 I used the vapor rtn line for the fuel return. It avoided the gas tank modifications that's needed for an in tank pump. All I had to do was to add the fuel regulator for the fuel line return to the tank. I guess its comes down to how much performance mods you are going to make to the motor. Just my thoughts here.
-jbojo

-john
(jbojo)
351C 4V cc heads, 10.5 : 1 CR, 290 Herbert cam, Flat top forged pistons, forged connecting rods, Atomic efi,
C6 with Gear Vendor overdrive, 3.89 Tru Trac, Hooker Super Comp with 2 1/2" Pypes Exhaust.        

Some Mod pictures can be seen at:

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