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Old Jan 29, 2010 | 02:12 PM
  #3376  
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Do you have them for a 7.3 too? I would love to put the 7.3 and NPI V10 dyno charts side by side and see up to what RPM the 7.3 pull harder.

What RPM does the 7.3 make peak HP at?
 
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Old Jan 29, 2010 | 02:18 PM
  #3377  
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Originally Posted by bill11012
Do you have them for a 7.3 too? I would love to put the 7.3 and NPI V10 dyno charts side by side and see up to what RPM the 7.3 pull harder.

What RPM does the 7.3 make peak HP at?
The highest rating the 7.3L Powerstoke ever had was 275 hp @2800 rpms, and 525 ft-lbs@1800 rpms.
JL
 
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Old Jan 29, 2010 | 03:17 PM
  #3378  
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Originally Posted by Johnny Langton
The highest rating the 7.3L Powerstoke ever had was 275 hp @2800 rpms, and 525 ft-lbs@1800 rpms.
JL
275HP was with a 6 speed manual tranny. Most of us ended up with the 4R100 slushbox and that's only rated for 250HP@2800rpm...
 
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Old Jan 29, 2010 | 03:24 PM
  #3379  
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Originally Posted by brian42
275HP was with a 6 speed manual tranny. Most of us ended up with the 4R100 slushbox and that's only rated for 250HP@2800rpm...
Just for clarification......
Originally Posted by Johnny Langton
The highest rating the 7.3L Powerstoke ever had was 275 hp @2800 rpms, and 525 ft-lbs@1800 rpms.
JL
JL
 
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Old Jan 29, 2010 | 03:45 PM
  #3380  
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Originally Posted by bill11012
Do you have them for a 7.3 too? I would love to put the 7.3 and NPI V10 dyno charts side by side and see up to what RPM the 7.3 pull harder.

What RPM does the 7.3 make peak HP at?
I don't have a dyno for those two, but you can get a ballpark figure by doing some calculations on your own based on ford's numbers. Comparing MY obs 7.3 to the 3v v10, they are pretty much equal up to 3k rpm. Then the 3v 10 makes more tq and hp from 3k rpm to 5k rpm than my 7.3 does at any rpm. My 7.3 is 225 hp at 3k rpm and 425 lbs of tq at 2k rpm. The v10 is 362 hp at 4750 rpm and 457 tq at 3250 rpm.

Ford claims 80% of torque for the modulars at 1k rpm. That would be 457x80%=365. I would assume about 90% at 2k and 100% at 3250. That would put it at 411 at 2k rpm. Using those numbers, the v10 would be 15 tq behind my 7.3 at 2k rpm. At 2k rpm the v10 hp would be 157 and my 7.3 would be 162.

Using the 3250 rpm and 457 tq for the v10 I would estimate it to have 445 at 3k rpm. That would be 254 hp at 3k rpm for the v10 compared to 225 at 3k rpm for my 7.3. If we were cruising at 60 mph (2k rpm) my 7.3 would maintain speed slightly better than the v10, but wouldn't come close to it if it became a race up the hill.
 
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Old Jan 29, 2010 | 04:23 PM
  #3381  
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Originally Posted by bill11012
No, but I want to.

The only track around here is a 1/8 mile. The closest 1/4 mile is 100 miles.
100 miles, that's hour and a half. Hell it takes me 2 hours to get to the nearest 1/8 mile track and 4 to the nearest 1/4 mile track. I go to the 1/4 with the shelby.
 
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Old Jan 29, 2010 | 05:10 PM
  #3382  
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Originally Posted by MobeyDick
100 miles, that's hour and a half. Hell it takes me 2 hours to get to the nearest 1/8 mile track and 4 to the nearest 1/4 mile track. I go to the 1/4 with the shelby.
well now your making me feel bad for ******** about it.lol

Why so far? You live in the middle of nowhere?
 
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Old Jan 29, 2010 | 05:17 PM
  #3383  
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Originally Posted by phillips91
I don't have a dyno for those two, but you can get a ballpark figure by doing some calculations on your own based on ford's numbers. Comparing MY obs 7.3 to the 3v v10, they are pretty much equal up to 3k rpm. Then the 3v 10 makes more tq and hp from 3k rpm to 5k rpm than my 7.3 does at any rpm. My 7.3 is 225 hp at 3k rpm and 425 lbs of tq at 2k rpm. The v10 is 362 hp at 4750 rpm and 457 tq at 3250 rpm.

Ford claims 80% of torque for the modulars at 1k rpm. That would be 457x80%=365. I would assume about 90% at 2k and 100% at 3250. That would put it at 411 at 2k rpm. Using those numbers, the v10 would be 15 tq behind my 7.3 at 2k rpm. At 2k rpm the v10 hp would be 157 and my 7.3 would be 162.

Using the 3250 rpm and 457 tq for the v10 I would estimate it to have 445 at 3k rpm. That would be 254 hp at 3k rpm for the v10 compared to 225 at 3k rpm for my 7.3. If we were cruising at 60 mph (2k rpm) my 7.3 would maintain speed slightly better than the v10, but wouldn't come close to it if it became a race up the hill.
You kind of gave that to the V10, doing 97 PSD vs 05 V10.

I wish I knew all the numbers for the 97-99 V10s so I could do that same math with it.

I know the peak HP but not the TQ.
I have been looking on line and have found 3 diffrent numbers for the same year, and I don't know which is true.
 
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Old Jan 29, 2010 | 07:57 PM
  #3384  
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Geee wizz, why won't this thread die?? We all know the answer.
 
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Old Jan 29, 2010 | 08:05 PM
  #3385  
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Originally Posted by 02GrayPowerStroke
We all know the answer.
I know I do
 
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Old Jan 29, 2010 | 08:39 PM
  #3386  
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Originally Posted by bill11012
You kind of gave that to the V10, doing 97 PSD vs 05 V10.

I wish I knew all the numbers for the 97-99 V10s so I could do that same math with it.

I know the peak HP but not the TQ.
I have been looking on line and have found 3 diffrent numbers for the same year, and I don't know which is true.
The reason I compared the worst 7.3 vs the best v10 was to prove that from idle to 3k rpm even the worst 7.3 will outpull the best v10(unless you're doing a shoot out test). I know some people like the shoot out tests and like to brag about how their truck would win a drag race up this steep of a hill under these certain conditions, etc. But what's important to me is which one tows the easiest and maintains speed the easiest, and even the newest v10 won't touch my 7.3 in that category.

The most common numbers I have seen have been 275 hp and 395 tq, but I wouldn't swear to it. My 5.4 makes peak tq at 2500 rpm and hp at 4k rpm, so I would say yours would be somewhere in that range too.
 
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Old Jan 29, 2010 | 09:00 PM
  #3387  
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Originally Posted by bill11012
well now your making me feel bad for ******** about it.lol

Why so far? You live in the middle of nowhere?
St. Simons Is. GA. Nearest 1/8 mile track is Douglas GA. About 125 miles. Nearest 1/4 is South GA. Motorsports Park Adel GA. about 3 hours 45 minutes Then there's Gainsville Fl. 4 hours and the Shelby is to fast, they will not let me run with out a Cage and Reynolds GA. Silverdollar Raceway a little over 4 hours. You can almost always run what you brung. As long as there is not actual Comp.
 
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Old Jan 29, 2010 | 09:23 PM
  #3388  
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Originally Posted by phillips91
But what's important to me is which one tows the easiest and maintains speed the easiest, and even the newest v10 won't touch my 7.3 in that category.
All the V10 has to do is down shift and it will pull harder, a down shift does not mean that it does not tow as well.

A V10 will always want to be one gear lower than you.

At the point your 7.3 has to drop out of OD my 2V V10 will need to drop 2 gears. It will be screaming, but it will be climbing the hill faster/ lose speed slower than you.
 
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Old Jan 30, 2010 | 12:19 AM
  #3389  
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v-10 gas hog job vrs powerstroke?
come on now boys.we all know the older IDI's beat them both.

seriously tho,
my dads got the 6.4 PSD and i don't see how gas banger could possible compete with that one.holy crap is all iv got to say about his f350.very,very nice.
i don't care for the 13 avg mpg tho.
don't get into one those 6.4's unless you need it is all im saying.way overkill for my needs.but man is it fun.
you'd have to be hooked up to something serious to use that kind of pulling power,and whatever it would be,would be against the law to tow lol.
 
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Old Jan 30, 2010 | 11:38 AM
  #3390  
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Im still waiting for the press conference from International where they anounce that they will be replacing their diesels, with Ford V-10's.................still waiting
 
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