Engine swap

[Heavyhaul]

So my friend bought a e99 truck. The motor was bad at the dealership and they agreed to put a used motor in. They put a 2001 motor in the rig he says the power is low.

I have been out of 7.3 for awhile but I think he needs to change the injectors back or change the computers. Am I wrong or what would be best?

 

[ghohouston]

Unless they put "bad" injectors in the truck, then no, thats not the problem. Has your friend checked basic things like boost/ exhaust leaks? Looked for anything loose under the hood? Did ford compression test the motor they installed?

 

[PSD715]

If they put it in with the 01 injectors, he's better off just retuning it than going backwards to smaller ones. But either way would technically work.

 

[PSD715]

Unless they put "bad" injectors in the truck, then no, thats not the problem. Has your friend checked basic things like boost/ exhaust leaks? Looked for anything loose under the hood? Did ford compression test the motor they installed?

Not much difference in tuning for ABs vs ADs?
Or 17* pump vs 15*?

 

[Heavyhaul]

Private used car lot. Just got it back this afternoon. He just showed it to me. I didn't here any exhaust leaks and he has no gauges yet. I cant drive it do to booze right now.

 

[ghohouston]

Not much difference in tuning for ABs vs ADs?
Or 17* pump vs 15*?

Not on a stock truck, at least not enough to really feel a difference

 

[Lethalthreat7.3]

If they had an e99 it probably has a XLE4 PCM and the 2001 7.3l injectors won't operate properly with that one. Have him look into a PMT1 or PMT2 PCM, I know there are other calibrations as well.

 

[Heavyhaul]

If they had an e99 it probably has a XLE4 PCM and the 2001 7.3l injectors won't operate properly with that one. Have him look into a PMT1 or PMT2 PCM, I know there are other calibrations as well.

What about the idm? Doesn't the e99 have single shots and the 2001 have split shots or something? I cant remember.

 

[neverkickn]

The idm won't make a difference if it is operating properly.

 

[PSD715]

And e99 has splits also. Just smaller ones.

 

[Lethalthreat7.3]

The IDM will work fine but if it is an e99 it probably has the 110v one in there.

 

[Heavyhaul]

The IDM will work fine but if it is an e99 it probably has the 110v one in there.

K so what do the 2000 and up have?

 

[Lethalthreat7.3]

They upgraded to 120v. There is a mod to increase the voltage to 140v for both by adding a resistor, 75k on the 110v and a 73.2k for the 120v.

 

[ghohouston]

If they had an e99 it probably has a XLE4 PCM and the 2001 7.3l injectors won't operate properly with that one. Have him look into a PMT1 or PMT2 PCM, I know there are other calibrations as well.

Why exactly wouldnt they operate "properly"? Its just a little bigger of an injector, its still a split shot, so why wouldnt it operate properly?

 

[PSD715]

The gap between shots is likely not the same.

 

[Heavyhaul]

Well he is trying to get the pcm out of the truck that motor came from. I will post back on his butt dyno results when it's done.