PCM proboss GT-40 5.8L, what sized fuel injectors?

The above engine was just resurrected from a 2 year slumber. Fuel was bad, replaced. New plugs, wires, rotor. new fuel filter. Lower fuel pump was toast and sent white corrosion into fuel system. I think the injectors are clogged. It runs great until 3000rpm then just stubbles. I was thinking I could put a set of ford motorsport injectors in it for about how much it will cost to get the stock ones tested ($200 for that).

What size are they?

JoeinNY wrote: Then I figured it was time start tearing down the pile of debris that used to be an engine and sort out what I could about the mysteries of the GT40 engine so I could toss the junk and get some space back.. 24 lb ford fuel injectors

Ford Racing has two different 24lb kits available. The M-9593-AA302 has the blade type pins on the injector and the M-9593-LU24 has the needle style pins on the injector. Make sure you order the ones that match your old injector style.

I was comparing the specs between the M-9593-AA302 and 397-M-9593-LU24A

The Injector voltage offset as a function of battery voltage is different. Will this cause problems? If one responds quicker won't more fuel flow out if the injector is left open for the same amount of time? Less dead time on the injector

M-9593-AA302
VBAT Voltage Offset
volts) (ms)
6 2.273
8 1.420
10 1.005
11 0.863
12 0.751
13 0.666
14 0.579
15 0.504


397-M-9593-LU24A
VBAT Voltage Offset
volts) (ms)
6 4.453
8 2.234
10 1.527
11 1.297
12 1.127
13 0.997
14 0.874
15 0.785

Go to the auto parts store and ask for injectors for a 95ish F250 with a 460.

The ford adapters are fine. You fill them with dielectic grease that comes with them. Height is not an issue they clear fine. They have good water seals on them.

http://www.buyfordracingfromdpm.com/ford-racing-24-lb-hr-fuel-injector-set/

Yes. I got mine from buy ford racing. $20 less. You pick the option to add the adapters. $179 with out adapters, $199 with. The body is different and they have 6 very small holes instead of 4. They vaporize the fuel a bit better than the older version.

jhersey29 wrote: http://www.buyfordracingfromdpm.com/ford-racing-24-lb-hr-fuel-injector-set/ Yes. I got mine from buy ford racing. $20 less. You pick the option to add the adapters. $179 with out adapters, $199 with. The body is different and they have 6 very small holes instead of 4. They vaporize the fuel a bit better than the older version.

Link to Ford racing