EFI Questions

[TDavis]

I'm getting everything together to start my EFI swap and didn't know if I ran a mustang sending unit in my fuel cell would i still have to run a low pressure pump and a accumulator?

 

[Bronco_69]

i run a 5.0 sending unit with a 90* bend on the end. it works great for what i do. if you do hill climbs and such with less then half a tank you may have issues.

i gassed up today and put in 11 gallons. last night i was driving through the muddy trails at deer camp with no issues.

check my efi build post for pics of the set up.

 

[rjlougee]

If you run the Mustang sender with the HP fuel pump on it, then you wouldn't need to run a LP pump as well.

On the accumulator, most likely not, but you would want to make sure you have a recess or baffled area in the tank where the pump sits.

Be careful substituting a truck EFI sender for the Mustang unit, many of the trucks used LP pumps in the tank and a HP frame mounted unit (which is also acceptable, just so you know what you're running).
Joe

 

[TDavis]

Thanks! I work at a parts store and I just ordered a new mustang sending unit so that shouldn't be a problem.

 

[Broncobowsher]

Somewhere I heard that Ford changed the sending unit specs with the new dash style in '87.

The '86 tank is a hard find because people wnating EFI in the pre'87 mustangs have one choice for a one that will work with the old style fuel gauge.