'99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion 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.
I'm looking for a chart showing torque and horsepower over the entire RPM range for a box-stock 2001 7.3L PSD engine with an automatic transmission. A web link to such a chart or even a table with RPM's and torque plus horsepower would be fine.
FWIW, I believe there was a chart in the 2001 official F*rd brochure for Excursions/Super-Duty trucks.
Basic numbers are 505 lb/ft torque @ 1,600 RPM, and 250 HP @ 2,600 RPM. Sorry for the lousy scan, but the source in the brochure is pretty awful.
Scale is 550 torque at the top, 250 HP at the top, with decreasing increments of 50 as you go down the chart. RPM scale is 500 to 3,000, with increments of 500 RPM.
My Sierra Blanca in the sig pic was a great pickup for 11.5 years. I sold it a coupla years ago. I drove a hand-me-down 2003 F-150 SuperCrew 4.6L 2V for a while, but it was unacceptable for towing more than a rowboat. Replacement is a 2012 F-150 EcoBoost SuperCrew Lariat that tows my 5,000-pound TT like a dream.
Smokey, that works perfectly. What I'm looking for is where the torque plateau starts and drops off on the 2001 PSD 7.3L. Even if it might be a few pounds off automatic vs. manual, I would think the shape of the curve would be the same.
I've adapted the principals of "progressive shifting" to my driving technique where I want (as much as I can in an automatic) the truck to shift and operate on the top of that torque plateau between 1,500 and 2,500 RPM. FWIW, the trucking company I worked at beat this into driver's heads at every opportunity. The engine is most efficient, according to the experts that figured this stuff out, at lower RPM's when the torque is at the highest.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DieselFan</div><div class="ubbcode-body">The engine is most efficient, according to the experts that figured this stuff out, at lower RPM's when the torque is at the highest. </div></div>
That's somewhat true, but not when loaded to the gills. At anything below around 1,900 RPM, you don't have enough horses to pull the load, regardless of torque. At the torque "peak" of 1,600 RPM, you'll do okay unloaded, but don't try to pull much of a load below 1,900 RPM with a stock engine.
With my hot-rodded engine, I can gross around 16k and get along just fine at 1,800 RPM, or when the road is flat as a pancake, I can even get along at about 1,750 RPM. But at 1,600 RPM there's simply not enough horses available.