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83 External Fuel Pump?

Is there a high flowing fuel pump for the 83 dual pump setup?  I have a 5.0ho with a stock 83 turbo coupe fuel system, at 5000rpm It seems like it just runs out of fuel won’t rev past that.  Do I need to change the in tank pump also or can I get by with just a higher flowing external pump?

Re: 83 External Fuel Pump?

Reply #1
I put a Walbro 255hp in-tank in my '83. It wasn't a "drop-in" replacement, and took a little customization, but it's been working for years.

No details, as it was done a LOOOOONG time ago.  I doubt I even have pictures. I know it involved a little cutting, some submersible-rated fuel line (don't cheap out here), and a hose clamp or two to keep the pump in place.
Long live the 4-eyes!  - '83 Tbird Turbo

Re: 83 External Fuel Pump?

Reply #2
I put a Walbro 255hp in-tank in my '83. It wasn't a "drop-in" replacement, and took a little customization, but it's been working for years.

No details, as it was done a LOOOOONG time ago.  I doubt I even have pictures. I know it involved a little cutting, some submersible-rated fuel line (don't cheap out here), and a hose clamp or two to keep the pump in place.

Any idea how to run the fuel filter or maybe adapting one off another vehicle by swapping?  I do have a 255lph in tank pump from quantum it has the sock the submersible line the hose clamps and the wiring for it, just was afraid something might not  work by swapping over.

Re: 83 External Fuel Pump?

Reply #3
Is there a high flowing fuel pump for the 83 dual pump setup?  I have a 5.0ho with a stock 83 turbo coupe fuel system, at 5000rpm It seems like it just runs out of fuel won’t rev past that.  Do I need to change the in tank pump also or can I get by with just a higher flowing external pump?
Sounds more like valve float. I run the stock dual pumps on my mild carbed 5.0 HO and spin to 6300 with ease.
84 COUGAR/90 HO, 1.7RRs, performer RPM,700DP, equal length shorties, stainless EXH ,T-5,Hurst pro-billet, KC clutch, 8.8/ 4.10s, line-lok, bla ,bla, bla.
71 COMET/289,351w heads, 12.5 TRWs, 750DP, Liberty TL, 9"/6.00s, 11.9x @112 , bla,bla,bla.

Never shoot your mouth off, unless your brain is loaded! ....I may get older, but I'll never grow up!....If you're not laughing, you're not living!  :laughing:

Re: 83 External Fuel Pump?

Reply #4
I have a 190 LPH Walbro intank pump in my car for over 10 years now. Plenty of fuel for a stock 5.0L HO and it's even quieter then my original factory pump.  It was a drop in kit with filter sock, pump, hose, and mounting bracket but I forget where I purchased it.  Are you still running factory ignition?  If so,  it may be breaking down at high rpm. Make sure your spark plug gap isn't too wide first though.
1988 Thunderbird
306 HO w/ A9P processor
AOD w/ Transgo Reprogrammer
Full Digital Dash w/ twin Cyberdyne A-pillar gauges 
245/50/16 Tires on Snowflakes
Engine swap - CA smog compliant

Re: 83 External Fuel Pump?

Reply #5
I put a Walbro 255hp in-tank in my '83. It wasn't a "drop-in" replacement, and took a little customization, but it's been working for years.

No details, as it was done a LOOOOONG time ago.  I doubt I even have pictures. I know it involved a little cutting, some submersible-rated fuel line (don't cheap out here), and a hose clamp or two to keep the pump in place.

Any idea how to run the fuel filter or maybe adapting one off another vehicle by swapping?  I do have a 255lph in tank pump from quantum it has the sock the submersible line the hose clamps and the wiring for it, just was afraid something might not  work by swapping over.


I put mine over where the old external pump was, but I also only have a single 3" exhaust (2.3T). It shouldn't be hard to find a spot to mount the filter out of the way for dual exhausts.

There's an idea HERE from a Fox Mustang site, with a filter option.
Long live the 4-eyes!  - '83 Tbird Turbo

Re: 83 External Fuel Pump?

Reply #6
I have a 190 LPH Walbro intank pump in my car for over 10 years now. Plenty of fuel for a stock 5.0L HO and it's even quieter then my original factory pump.  It was a drop in kit with filter sock, pump, hose, and mounting bracket but I forget where I purchased it.  Are you still running factory ignition?  If so,  it may be breaking down at high rpm. Make sure your spark plug gap isn't too wide first though.


Yes it is factory ignition, I am now getting a consistent miss during hard acceleration and rough idle, fuel pressures check out ok so I’m looking into the ignition.  I’m going to pull the plugs today, I think they were gapped at .044” when I put the plugs in, I’ll just put everything to OE.  The motor has stock cam and heads for an 87 HO.

It has a new reman distributor, new tfi, new coil, new cap, new rotor.  The plugs and wires are 2 years old, Ford racing 9mm wires and motorcraft plugs.