68 to 70 B body Holley EFI Fuel Pump Module

[Nxcoupe]

I just got one in for a friend of mine and thought I'd compare it to my 66 pick up. I think I'm going to make my 66 one as I don't think I could make this one work without a lot of hassle.
It has an internal regulator so no need for a return line. Produces 4 bar of pressure, so around 56 psi. I'm eager for him to get it in so we can tune on his car. The inline pump just wasn't cutting it.

 

[Nxcoupe]

It comes with a special filter that is amazing how they work. It's not a normal sock filter, I can't recall its name but I'll look it up and post in a bit.

 

[gkent]

Can you make out the numbers on that pump? What is the HP rating ?

 

[1 Wild R/T]

It comes with a special filter that is amazing how they work. It's not a normal sock filter, I can't recall its name but I'll look it up and post in a bit.

Hydra-Mat

 

[Nxcoupe]

Can you make out the numbers on that pump? What is the HP rating ?

They make 2 different ones, one is good up to 600, this one up to 800. I'll get the numbers later off the pump, I was hoping tge picture would make it easier to see, but it didn't.

 

[Nxcoupe]

Hydra-Mat

Yes, hydramat. It's amazing stuff. Expensive tho.

 

[gkent]

They make 2 different ones, one is good up to 600, this one up to 800. I'll get the numbers later off the pump, I was hoping tge picture would make it easier to see, but it didn't.

Would appreciate that. Thanks,

 

[gkent]

Wow, they ain't cheap !!

I bought one of the Spectra EFI tanks which comes with the pump, etc.. The vast majority of pumps are Walbro's and can be swapped out based on your HP needs. The line size is a different story of course but seems to me for anything north of 500 HP 1/2" is recommended.

Just checked and the Spectra pump assy is about the same price as the Holley - which supports more HP.

 

[Nxcoupe]

Wow, they ain't cheap !!

I bought one of the Spectra EFI tanks which comes with the pump, etc.. The vast majority of pumps are Walbro's and can be swapped out based on your HP needs. The line size is a different story of course but seems to me for anything north of 500 HP 1/2" is recommended.

Just checked and the Spectra pump assy is about the same price as the Holley - which supports more HP.

No, they are not cheap. But I believe they are worth it.

 

[69ChargerR/TSE]

Holley Sniper EFI 12-314 Holley EFI Fuel Tank Modules - 255 LPH - 1968-1970 Mopar B-Body

This in-tank fuel pump module is a high-pressure unit that flows 255 liters per hour (LPH) and is capable of supporting EFI (electronic fuel injection) engines producing up to 550 horsepower. The fuel pressure is internally regulated to 58 psi eliminating the added expense and effort of...

www.holley.com

might be this one or

Holley Sniper EFI 12-384 Holley EFI Fuel Tank Modules - 350 LPH

• This in-tank fuel pump module is a high-pressure unit that flows 350 liters per hour (LPH) and is capable of supporting EFI (electronic fuel injection) engines producing up to 750 horsepower • Fuel pressure is internally regulated to 58 psi eliminating the added expense and effort of...

www.holley.com

I have the 1st one in my 69. No return line needed.

 

[Nxcoupe]

http://[URL][URL]https://www.holley...uel_pumps/muscle_car_efi_modules/parts/12-314

[/URL][/URL]
might be this one or

http://[URL][URL]https://www.holley...uel_pumps/muscle_car_efi_modules/parts/12-384

[/URL][/URL]

I have the 1st one in my 69. No return line needed.

I ordered a 12-384 for him. I'm a Holley dealer. Yes, they are returnless. They are designed for the sniper system, but will work with any system requiring 4 bar of pressure.
The hydramat makes this an excellent system.

 

[Nxcoupe]

Can you make out the numbers on that pump? What is the HP rating ?

GSS351G3 is the part number on the pump.

 

[gkent]

As I suspected, an off-the-shelf Walbro pump.

Universal In-tank Fuel Pumps

walbrofuelpumps.com

TI AUTOMITVE GSS351G3 INTANK FUEL PUMP 350LPH HIGH PRESSURE (UNIVERSAL)

Walbro Part Number: GSS351G3 - GSS351Type: Universal Intank Fuel PumpFuel: GasHorsepower: 600HP+Flow Rate: 350LPH

walbrofuelpumps.com

 

[Nxcoupe]

As I suspected, an off-the-shelf Walbro pump.

http://[URL]https://walbrofuelpumps.com/universal-in-tank-fuel-pumps.html

[/URL]

http://[URL]https://walbrofuelpumps...fuel-pump-350lph-high-pressure-universal.html

[/URL]

Yep, what else would they use? I just ordered 2 pumps to make mine and a friend's up as they don't offer them. His will use this pump and mine will use the GSS342 pump. It's funny, walbro lists them as not E85 compatible but I have used them for years with E85.

 

[gkent]

They do have E85 compatible pumps

E85 Compatible Fuel Pumps

walbrofuelpumps.com

 

[Nxcoupe]

They do have E85 compatible pumps

http://[URL]https://walbrofuelpumps.com/e85-compatible-fuel-pumps.html

[/URL]

I saw that. They are all their 450 up pumps. I believe that these will work fine. I'm going to use it that way and alternate E85 and premium. Here in OH we have E10 anyway, so it's exposed to ethanol no matter what. I will report positive or negative results. I am always pushing the envelope. That's just me.

 

[gkent]

I have one of the Spectra EFI tanks with their pump assembly. I'd like to take it out for a look but can't figure how the hell they manage to get it in there through that hole !!!

 

[Nxcoupe]

I have one of the Spectra EFI tanks with their pump assembly. I'd like to take it out for a look but can't figure how the hell they manage to get it in there through that hole !!!

It is a process, that's for sure. You have to rotate and angle it as you work it out.