stock numbers
Postmaster
Joined: Apr 2004
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From: Ellensburg, Washington
245/520 isn't it.......?
Having owned both a 6.4 and a 7.3 I will say that the 7.3 hands down gets better fuel mileage and has more low end grunt. The 6.4 is a towing machine though so I would say it comes down to the fact of how often and how much do you tow. If you are a monthly tower then I would say get you a nice, clean , used 7.3 and have fun because you'll get twice the fuel mileage outta the 7.3 then you will with the 6.4, but if your a weekly tower and need the big towing capacities then hop on the band wagon and get ya a 6.4
Cowboy Steve
Having owned both a 6.4 and a 7.3 I will say that the 7.3 hands down gets better fuel mileage and has more low end grunt. The 6.4 is a towing machine though so I would say it comes down to the fact of how often and how much do you tow. If you are a monthly tower then I would say get you a nice, clean , used 7.3 and have fun because you'll get twice the fuel mileage outta the 7.3 then you will with the 6.4, but if your a weekly tower and need the big towing capacities then hop on the band wagon and get ya a 6.4
Cowboy Steve
Last edited by powerstroked162; Nov 12, 2007 at 05:30 PM.
Postmaster
Joined: Jun 2006
Posts: 2,647
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From: Fulltime RVer
Check this thread...
https://www.ford-trucks.com/forums/666835-a-quick-way-to-estimate-your-dyno-results.html#post5265024
for RWHP and RWTQ curves for a stock 99.5 with an auto tranny, as measured on a water brake load dyno.
Max RWHP=212.2 HP at 2600 RPM, and Max RWTQ=463.1 lb-ft at 1800 RPM.
https://www.ford-trucks.com/forums/666835-a-quick-way-to-estimate-your-dyno-results.html#post5265024
for RWHP and RWTQ curves for a stock 99.5 with an auto tranny, as measured on a water brake load dyno.
Max RWHP=212.2 HP at 2600 RPM, and Max RWTQ=463.1 lb-ft at 1800 RPM.
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
I thought for '02 it was 250/515 for auto and 275/520 for standard or something real close to that (at the flywheel)...
EDIT: Found this on the specs page here on FTE for the '02 F250 with the 7.3:
"The 7.3L Power Stroke<SUP>TM</SUP> turbo diesel V-8, the best-selling engine in its class - gas or diesel, produces 250 horsepower and 505 lb.-ft. of torque with the automatic transmission; or 275 horsepower and 520 lb.-ft. of torque when joined to the manual transmission."
See it here:
https://www.ford-trucks.com/specs/20...series_SD.html
EDIT: Found this on the specs page here on FTE for the '02 F250 with the 7.3:
"The 7.3L Power Stroke<SUP>TM</SUP> turbo diesel V-8, the best-selling engine in its class - gas or diesel, produces 250 horsepower and 505 lb.-ft. of torque with the automatic transmission; or 275 horsepower and 520 lb.-ft. of torque when joined to the manual transmission."
See it here:
https://www.ford-trucks.com/specs/20...series_SD.html
Last edited by Izzy351; Nov 13, 2007 at 04:36 AM.
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Postmaster
Joined: Jun 2006
Posts: 2,647
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From: Fulltime RVer
Originally Posted by Izzy351
I thought for '02 it was 250/515 for auto and 275/520 for standard or something real close to that (at the flywheel)...
EDIT: Found this on the specs page here on FTE for the '02 F250 with the 7.3:
"The 7.3L Power Stroke<SUP>TM</SUP> turbo diesel V-8, the best-selling engine in its class - gas or diesel, produces 250 horsepower and 505 lb.-ft. of torque with the automatic transmission; or 275 horsepower and 520 lb.-ft. of torque when joined to the manual transmission."
See it here:
https://www.ford-trucks.com/specs/2002/2002_f-series_SD.html
EDIT: Found this on the specs page here on FTE for the '02 F250 with the 7.3:
"The 7.3L Power Stroke<SUP>TM</SUP> turbo diesel V-8, the best-selling engine in its class - gas or diesel, produces 250 horsepower and 505 lb.-ft. of torque with the automatic transmission; or 275 horsepower and 520 lb.-ft. of torque when joined to the manual transmission."
See it here:
https://www.ford-trucks.com/specs/2002/2002_f-series_SD.html
I've used those curves to help calibrate the volumetric and thermodynamic efficiency functions in my PSD engine model, so that my model now produces curves that match the measured ones very closely.
Postmaster
Joined: Apr 2004
Posts: 3,658
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From: Ellensburg, Washington
Originally Posted by ernesteugene
So if you use your 250 flywheel HP and a 15.1% driveline loss, you get the RWHP=212.2 number that I gave! In addition, I gave measured curves vs RPM for both RWHP and RWTQ, and I believe those are dead on accurate as measured on a load (not inertial) dyno.
I've used those curves to help calibrate the volumetric and thermodynamic efficiency functions in my PSD engine model, so that my model now produces curves that match the measured ones very closely.
I've used those curves to help calibrate the volumetric and thermodynamic efficiency functions in my PSD engine model, so that my model now produces curves that match the measured ones very closely.
............
Cowboy Steve
Senior User
Joined: Sep 2007
Posts: 123
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From: altoona wi
ernesteugene, I would have to agree about the water braek dyno, that it true hp at the wheels while drawing down the engine. Also it measures an accurate hp through load, not speed of how fast/quick you can spin the rear tires. Although I will say both dyno numbers will be close. Just remember everyone that you will never get identical dyno numbers, even in the same truck back to back. Trust me, I dyno trucks at work (Mack & Volvo) dealership and a lot of other trucks. Gearing, suspension and a lot of other factors play into getting those numbers.
Elder User
Joined: May 2007
Posts: 506
Likes: 0
Haha. All these numbers are different from the FTE website.
Go up top to Articles/Specs ====> Click down to Specs... Select your year and then click specs again.
2000 => 235hp, 500ft/Tq. (Man and Auto)
2001 => The 7.3L Power Stroke® turbo diesel V-8 produces 250 horsepower (15 more than last year) and 505 lb.-ft. of torque with the automatic transmission, and 275 horsepower and 420 lb.-ft. of torque when joined to a manual transmission (late availability)
2002 => 275hp, 520 ft/tq. MANUAL
2002 => 250hp, 505ft/tq. AUTO
2003 => 7.3L same as 2002
There we go, straight from the FTE website...
I'm curious to know why there is a 100ft/tq. jump between 2001 and 2002. Use of new tranny or something? Possibly a typo?
Go up top to Articles/Specs ====> Click down to Specs... Select your year and then click specs again.
2000 => 235hp, 500ft/Tq. (Man and Auto)
2001 => The 7.3L Power Stroke® turbo diesel V-8 produces 250 horsepower (15 more than last year) and 505 lb.-ft. of torque with the automatic transmission, and 275 horsepower and 420 lb.-ft. of torque when joined to a manual transmission (late availability)
2002 => 275hp, 520 ft/tq. MANUAL
2002 => 250hp, 505ft/tq. AUTO
2003 => 7.3L same as 2002
There we go, straight from the FTE website...
I'm curious to know why there is a 100ft/tq. jump between 2001 and 2002. Use of new tranny or something? Possibly a typo?
Last edited by santacruzf250; Nov 13, 2007 at 09:37 PM.
Posting Guru
Joined: Dec 2006
Posts: 2,498
Likes: 3
From: Windsor, Colorado
Originally Posted by santacruzf250
2002 => 275hp, 520 ft/tq. MANUAL
2002 => 250hp, 505ft/tq. AUTO
2003 => 7.3L same as 2002
There we go, straight from the FTE website...
I'm curious to know why there is a 100ft/tq. jump between 2001 and 2002. Use of new tranny or something? Possibly a typo?