7.3 IDI power specs

bird hunter

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Anybody know why the earlier 7.3 made 338 f/lb torque and the later one made 360 f/lb?? I can't remember what year the specs changed, but I was curious as to what changes made the later 7.3 slightly more powerful.

Thanks all
 

93f250idi

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Maybe the turbo'd idi's made that much? Only change in the 87-91 7.3 and The 92-94 that I know of where the injection pumps having a torque screw.
 

grog85

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I believe the 84-87 6.9 made 338 ft/lb, and the 7.3 made 345 ft/lb to start with. Maybe in 92 they were upgraded to 360, but i,m not sure.
 

93f250idi

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According to forgotten diesels .com all 7.3 n/a from 88-94 have 360 tq and the turbo'd 7.3 idi had 388 tq.
 

dyoung14

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A model low compression 6.9 83 models had 315 ftlbs and 170hp:puke:

B model when they upped the compression it made 175 hp and 338FTLBS

The 7.3 from 88-91 made 180 hp and 345FTLBS

then the 92-94 NON TURBO engines made 185HP and 360 FTLBS

Finally the 93 and 94 turbo idi made 190HP and 388FTLBS

The 94 powerstroke makes 210HP and 425FTLBS

I personally own an engine from each era and my 83 model 6.9 has more power than the powerstoke i do have a 93 model idi turbo kit on it, but it will eat the powerstokr even when the powerstoke is running perfect and not missing like it does sometimes,

I can tell you there is not alot of difference between the engines and how the run power wise, and that with enough fuel and timing tweaks an 83 A model can out run a stock powerstoke cause mine out ran our psd with ease when mine was still non turbo, sounds likr the psd has the advertised horsepower right?LOL
 

idipwr

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Where do you all get the turbo models make 388ftlb, my original literature says 395ftlb.
 

hesutton

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All numbers are at the crank:

6.9:
Max HP 175 @ 3300 RPM
Max torque 318 ft/lb @ 1800 RPM


7.3:
Max HP 185 @ 3300 RPM
Max torque 338 ft/lb @ 1800 RPM


7.3 IDI Turbo:
Max HP 190
Max torque 360ft

Heath
 

dyoung14

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All numbers are at the crank:

6.9:
Max HP 175 @ 3300 RPM
Max torque 318 ft/lb @ 1800 RPM


7.3:
Max HP 185 @ 3300 RPM
Max torque 338 ft/lb @ 1800 RPM


7.3 IDI Turbo:
Max HP 190
Max torque 360ft

Heath


Heath not trying to argue but your numbers are not spot on,
 

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