So you want to add fuel injection to your Cougar but want to keep your original tank?
Holley now has a DIY fuel injection system that doesn’t require cutting open the tank and welding it back together… and no return line either.
The return is built in and the mat pulls the fuel to the pump so no need for baffles, even if only a corner of the mat is touching fuel.
Price isn’t too bad at all either.
Price = Ouch!
Considering how much it would cost to make a custom tank I think it averages out.
On the last episode of Gearz TV, Stacy David showed that pump going into a fuel tank.
Really? That seems like a pretty solid price for what you’re getting…
Guess I find the whole EFI thing prohibitively expensive when considering going over from an (all new) carb setup. Also, I guess carbed engines fit my “vintage”. Not that I would mind all the electronics, fuel supply management and stuff but…
The thing that bothers me with this fuel pump is all of the fuel lines that are now in the trunk laying there just waiting for some thing in the trunk to slide into it during an evasive maneuver.
I suppose that a person could make a shield and stuff but fuel lines spring leaks and I would rather the leak be out side of the vehicle.
You can also buy a sump system that goes inline between your mechanical pump and throttle body. If I did decide to go fi I would probably go that route. But still, another good option.
Spectra gas F28AFI tanks have fuel injection pump and gas gauge sending unit installed.
http://ecat.spectrapremium.com/prod/F28AFI
http://ecat.spectrapremium.com/a/74704
Comments
W/ DRAIN PLUG, W/ PAN IN TANK, CLASSIC INJECTION, Hanger Spec: Resistance 75-10 Ohm, Flow 68 -77 GPH, Pressure 58 PSI
Pressure Range
Rock auto $335.79
Has anyone used one of these fuel sending units for EFI? Seems like the absolute easiest way to hook up a return line, but I’m worried the lines are undersized.
I converted my '69 with a transplanted 351C to fuel injection last summer. I used the FiTech 600hp kit, a new FI specific fuel tank and in-tank pump (GP-4A) from Tanks Inc, and plumbed it with an-6 line for delivery using the stock fuel line for return. The FiTech FCC linked to earlier had some early problems and required a lot of space in the engine bay to mount. The top mount connections for the fuel pump are a concern that I’m addressing with a fabbed aluminum cover. I did have a fuel pump problem after installation and had to swap it out for a new pump. Thanks to Summit that swap was at no charge and only required my time to R&R the pump module without draining the tank. The FI pump mounted in the stock location in the Spectra tank would have required that I drain the tank for the fuel pump change.
On the question above regarding line size, FiTech rates the unit I have for 600hp with an-6 inlet connection on the throttle body. AN-6 line is nominally 3/8" OD with an ID of about 0.350". Again, I used the stock carb fuel line for return. I just checked that line size and measured it to 0.3780" OD with a 0.300" ID. If you have concerns about the 1/4" return pot on that sender I would review them with the fuel injection system supplier you are considering for verification.
I’ve just learned the simple option to changing the tank and/or getting the external high pressure pump from FITech, Holley, whomever. The old Bosch CIS injection system uses an in-line electric filter. They generate ~100 psi at low flow, but at the nominal 3 bar (45 psi) pressure that many aftermarket and OEM injection systems run at the flow enough for around 600HP. Quite a simple option @~$90 for the pump. Has anyone tried this?
Not the correct pressure for Sniper. You can get the inline regulator used on the Corvette and it works. Although I have one right now I think in the long run a return line may be a better choice
When I installed my EFI last spring I used this Holley unit(12-305)
with my stock tank. Works great.
Jim
Welcome back Jim! How long was the harness that came with it? How did you connect to the fuel sending harness?
Yes, with a regulator, the pressure can be set to any desired pressure. At the lower pressures (say 40 - 60) these pumps flow more than my engine needs.
Are you saying you have a Bosch CIS pump at present, or you have a Corvette regulator at present?
[C7-XR7] - I’m seeing $400 for the Holley. That’s quite a difference.
Some reference data for those interested. It flows greater than 250lph all the way up to 65 psi.
When i purchased mine it was $395 .
I used EFI SYSTEM PRO for my system.
Great people and good support.
Jim
