2000 7.3 hp/torque curves - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 11-26-2006, 01:02 AM   #1 (permalink)
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2000 7.3 hp/torque curves

Anyone know where I can find hp/torque curves for my truck?

John
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Old 11-26-2006, 10:49 AM   #2 (permalink)
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Re: 2000 7.3 hp/torque curves

The only place I know about is in a '99 SuperDuty brochure. My scanner is not very good, but maybe you can read this:

http://photos.thedieselstop.com/data/500/957curve.jpg
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Old 11-26-2006, 11:37 AM   #3 (permalink)
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Re: 2000 7.3 hp/torque curves

I never did believe those graphs...maybe at the crank, but at the wheels with an auto tranny, no way the torque peaks that low.
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Old 11-26-2006, 11:58 AM   #4 (permalink)
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Re: 2000 7.3 hp/torque curves

I would think that if that was advertised in a brochure it would be SAE net horsepower requiring that the numbers be taken with "...as-installed trim, with all accessories and standard intake and exhaust systems. ..." but still at the flywheel.

SAE Net Hp...
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Old 11-26-2006, 03:53 PM   #5 (permalink)
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Re: 2000 7.3 hp/torque curves

[ QUOTE ]
I never did believe those graphs...maybe at the crank, ...

[/ QUOTE ]

Not exactly, it's at the flywheel right after the crankshaft.

[ QUOTE ]
..but at the wheels with an auto tranny, no way the torque peaks that low.

[/ QUOTE ]

Actually, the torque curve doesn't really "peak". It's flat as a pancake with just below 500 lb.-ft. from about 1,500 until 2,600, then it falls like a rock. The peak @ 1,600 is just a tiny bump in the road.

The HP curve is almost a straight sloping line from 350 RPM up to 2,600, then it peaks and heads downhill.

For '99 and Y2K, Ford advertised 235 HP @ 2,600 RPM and 500 lb.-ft. torque @ 1600 RPM. Those numbers fit on that graph very well.

On mine, the torque "peak" at 1600 RPM is almost useless for towing because there aren't enough horses to tote the mail until about 1,900 RPM. But cruising in the 1,900 to 2,600 RPM range is where the engine purrs.
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Old 11-26-2006, 06:28 PM   #6 (permalink)
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Re: 2000 7.3 hp/torque curves

[ QUOTE ]
Anyone know where I can find hp/torque curves for my truck?

John

[/ QUOTE ]

Banks shows the stock ratings on their graphs.
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Old 11-26-2006, 07:18 PM   #7 (permalink)
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Re: 2000 7.3 hp/torque curves

Thanks for all of our input. Just what I was looking for.
-------------------------------------------------------------
From Smokey -
"But cruising in the 1,900 to 2,600 RPM range is where the engine purrs"

With a 6sp its hard (for me) to "cruise" at that rpm range - in 6th (OD) that would be 65 mph to 90 mph. My cruising speed is 60 - 65 mph. I do find though, like you, that I can pull hills at 1800 rpm (about 62 mph) that I can't (without downshifting) at 1600 rpm / 55 mph.
Once I downshift to 5th (direct) there is no Interstate grade that I can't accelerate on.
-----------------------------------------------------------
Thanks again for all of your input.
John
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Old 11-26-2006, 07:44 PM   #8 (permalink)
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Re: 2000 7.3 hp/torque curves

Rick -
Very much interested in your retrofit of the OEM telescoping, heated mirrors. I've been thinking about doing just that but not quite sure how to tackle it. Any input on how you executed that conversion would be greatly appreciated. Also, did you buy the mirrors from Ford - or? How much?
Thanks
John
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2000F350SC Lariat, 6-sp, Manual 4x4, 3.73, DRW, AIC, 4"Exhaust, AT4040(no muffler), TAG-2, AIH Delete(now boost pressure port), Autometer 3-guage A-piller, SuperChips"perf tow", Line-X, Mag-Hytec Diff.Cover, WD Turbobrake 99TB, CCV3550 vented to wheelwell. Brakesmart trailer brake actuator. Towing a Hitchhiker DA 329RSB 15,000+ lbs loaded (15,100 GVWR) w/hydraulic disc brakes on 8K axles.
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Old 11-26-2006, 11:45 PM   #9 (permalink)
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Re: 2000 7.3 hp/torque curves

[ QUOTE ]
[ QUOTE ]
Anyone know where I can find hp/torque curves for my truck?

John

[/ QUOTE ]

Banks shows the stock ratings on their graphs.

[/ QUOTE ]
I can agree more with the these curves as to what I feel. 1800 rpm listed as peak trq at the rear wheels...that is my minimum preferred cruising rpm when towing in OD (7000 lb 5th).
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2000 F250 XLT 4x4 SC 7.3 w/Auto Tranny w/ TC L/U Sw & shift kit, Fully gaged, Cold air intake mods beyond zoodad, Stacked tuners, 4" Exhaust w/dual 3.5" outlets, 295/75/16 BFG ATs on 8" rims, 08 AlumDiffCvr, Bilsteins, otherwise mostly stock.
24' 5th wheel camping trailer, no RV parks...just the woods.
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Old 11-27-2006, 06:44 PM   #10 (permalink)
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Re: 2000 7.3 hp/torque curves

To avoid being off topic, I'll give you the following links then PM me if you still have questions or start a different post on the subject. I got lots of good info from this forum...

web page

web page

web page
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Old 11-27-2006, 11:06 PM   #11 (permalink)
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Re: 2000 7.3 hp/torque curves

That's enough info for now. Many thanks Rick. [img]/ubbthreads/images/graemlins/smile.gif[/img]

John
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