69 Super Bee EFI Conversion Plan

[DevEngNerd]

Hi all. I am getting the parts together to do a carb to EFI conversion on my 1969 Super Bee. I'm posting this to document my plan but also to get feedback, ideas, or hear any gotchas that I haven't thought of. I currently have a 383 with MSD ignition.

I bought an MSD Atomic 2 EFI kit. This has an integrated fuel pump relay so I won't need to install a relay. Most of it is plug-and-play, but I do need to find a 12v switched power source that maintains 12v while starting/cranking the engine. This 12v powers the handheld control unit screen/display and cannot lose power or reset during staring. I plan to use either the ignition switch or a spot in the fuse box for this switchable 12v power, I don't know, this is probably the thing I'm most unsure of.

MSD Atomic 2 EFI
MSD Ignition 2910-2 MSD Atomic 2 EFI Throttle Body Systems | Summit Racing

I found what looks to be a great solution for the high pressure fuel pump, the Holley OEM in-tank fuel pump shown below. This seems to be a great solution because:
--- It is in-tank which is highly preferred by manufacturers for multiple reasons
--- Has an integrated pressure regulator, so you don't need to install one
--- Returns fuel directly into the tank, so no return line is needed
--- Can use the existing hard fuel lines
--- Direct fit for stock gas tank, so no cutting holes in the tank for a drop-in pump
--- No baffle needed to prevent cavitation

I am not planning to use the EFI to control timing right away, maybe later down the line, I just want to keep it simple for now.

https://www.holley.com/products/fue...cessories/muscle_car_efi_modules/parts/12-314

 

[493 Mike]

Just tie the blue and brown wires at the ballast resister together and you will have 12 volts at cranking and running. You won't need to reduce voltage for the coil, so it is an easy source.
Mike

 

[Green72]

I used Atomic on my 440 about 12 years ago. I then used the same unit on a 512 stroker build and it worked great on that also. It was flawless in its operation. Your plan looks good, love that fuel pump option! Really simplifies things.

 

[pnora]

Hi all. I am getting the parts together to do a carb to EFI conversion on my 1969 Super Bee. I'm posting this to document my plan but also to get feedback, ideas, or hear any gotchas that I haven't thought of. I currently have a 383 with MSD ignition.

I bought an MSD Atomic 2 EFI kit. This has an integrated fuel pump relay so I won't need to install a relay. Most of it is plug-and-play, but I do need to find a 12v switched power source that maintains 12v while starting/cranking the engine. This 12v powers the handheld control unit screen/display and cannot lose power or reset during staring. I plan to use either the ignition switch or a spot in the fuse box for this switchable 12v power, I don't know, this is probably the thing I'm most unsure of.

MSD Atomic 2 EFI
MSD Ignition 2910-2 MSD Atomic 2 EFI Throttle Body Systems | Summit Racing

I found what looks to be a great solution for the high pressure fuel pump, the Holley OEM in-tank fuel pump shown below. This seems to be a great solution because:
--- It is in-tank which is highly preferred by manufacturers for multiple reasons
--- Has an integrated pressure regulator, so you don't need to install one
--- Returns fuel directly into the tank, so no return line is needed
--- Can use the existing hard fuel lines
--- Direct fit for stock gas tank, so no cutting holes in the tank for a drop-in pump
--- No baffle needed to prevent cavitation

I am not planning to use the EFI to control timing right away, maybe later down the line, I just want to keep it simple for now.

https://www.holley.com/products/fue...cessories/muscle_car_efi_modules/parts/12-314
View attachment 1963565

Might call and check on the MSD 2910-2 I believe it was discontinued.

 

[andrewwoz]

Just wrapping up putting a terminator x stealth in my super bee, I went with the Aeromotive stealth tank and 340lph pump and set it up on an MSD solid state relay (didn't need to do this but I had the installed the tank when it was still carbureted). The switched 12v source for the relay and ecu is pulling from the fuse box. I needed a 2nd switched 12v for the hyperspark which I used the blue wire for (already ditched the ballast resistor)

 

[murfman]

Hi all. I am getting the parts together to do a carb to EFI conversion on my 1969 Super Bee. I'm posting this to document my plan but also to get feedback, ideas, or hear any gotchas that I haven't thought of. I currently have a 383 with MSD ignition.

I bought an MSD Atomic 2 EFI kit. This has an integrated fuel pump relay so I won't need to install a relay. Most of it is plug-and-play, but I do need to find a 12v switched power source that maintains 12v while starting/cranking the engine. This 12v powers the handheld control unit screen/display and cannot lose power or reset during staring. I plan to use either the ignition switch or a spot in the fuse box for this switchable 12v power, I don't know, this is probably the thing I'm most unsure of.

MSD Atomic 2 EFI
MSD Ignition 2910-2 MSD Atomic 2 EFI Throttle Body Systems | Summit Racing

I found what looks to be a great solution for the high pressure fuel pump, the Holley OEM in-tank fuel pump shown below. This seems to be a great solution because:
--- It is in-tank which is highly preferred by manufacturers for multiple reasons
--- Has an integrated pressure regulator, so you don't need to install one
--- Returns fuel directly into the tank, so no return line is needed
--- Can use the existing hard fuel lines
--- Direct fit for stock gas tank, so no cutting holes in the tank for a drop-in pump
--- No baffle needed to prevent cavitation

I am not planning to use the EFI to control timing right away, maybe later down the line, I just want to keep it simple for now.

https://www.holley.com/products/fue...cessories/muscle_car_efi_modules/parts/12-314
View attachment 1963565

I’d recommend a tank from Tanks inc in Iowa. They make a nice replacement tank with a well for an EFI pump