69 Super Bee EFI Conversion Plan

[OneWheelPeel]

I have the older MSD Atomic system on my Vette with the supplied external pump running PWM, it’s been pretty trouble free. I never set up the timing control but maybe one day for science to see if it’s worth it.

 

[Don Frelier]

Mine drove great down the road without timing control,
BUT return to idle during various situations was iffy.
Sometimes the IAC would kick in slowly and kind of stick there and then the car wanted to pull through the back wall of my barn. NOT GOOD.

Timing control fixed that and allowed me to tune it much better, I don't think you'll be completely happy without it. There's not really a good reason to do half of it.

The plan to start it up without doing the timing control is fine.
But have a plan to convert after you get the fuel/system and rest of the install sorted.

 

[furious70]

Timing on the laptop with my classic FAST is wonderful. I highly encourage anyone to switch. It's actually one of the downsides to the sniper 2 right now I think, no control for Mopar even with their dizzy.

 

[OneWheelPeel]

Mine drove great down the road without timing control,
BUT return to idle during various situations was iffy.
Sometimes the IAC would kick in slowly and kind of stick there and then the car wanted to pull through the back wall of my barn. NOT GOOD.

Timing control fixed that and allowed me to tune it much better, I don't think you'll be completely happy without it. There's not really a good reason to do half of it.

The plan to start it up without doing the timing control is fine.
But have a plan to convert after you get the fuel/system and rest of the install sorted.

Thats a helpful note, because I have noticed the idle issues you mention. I mostly have it tuned with the settings and the adjustments at the TB but its still not what as smooth as it could be. Might be time to re-read the instructions and figure out how to lock the mechanical advance etc on the HEI distributor.

 

[451Mopar]

The cost of the Holley drop in fuel pump is expensive because the hydromat pickup sock is expensive.
A Spectra Premium CR9CFI (In tank 255 lph welbro pump fuel tank) is $420.91 on Amazon. Amazon.com: Spectra Premium (CR9CFI) Classic Injection Fuel Tank : Automotive
Looks like they have one listed that is mis-labeled as CR9DFI for $349.00 ? Amazon.com: Spectra Premium (CR9DFI) Classic Injection Fuel Tank : Automotive
Link to spectra premium in case the Amazon links don't work: CR9CFI

The only thing about these EFI pumps that go through the sending unit hole is there is no room to install a larger pump.

If you building something with more than 600 HP, your better off starting with a Tanks Inc tank.

If you are not using the ballast resistor, you can connect the EFI key signal / power to both the blue and brown wires on the ballast resistor together for power when cranking and running.
If you need to run the ballast resistor. You can do the same, connecting the EFI power to both the brown wire through a diode, and the blue wire through a diode.

With the spectra fuel tank, it has 3/8" barb supply line connection like a stock tank, and 5/16" (8mm) barb line fitting for the return.
I ran factory hard lines, but needed to enlarge the pass through hole in the torsen bar crossmember for both lines to fit through.
Running the hard lines is a pain if the tank and axle are installed. Run the lines before installing the tank and axle will make it much easier.