F-250 / Super Duty / Diesel

Horsepower

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Old Aug 19, 2002 | 10:09 AM
  #16  
BIGANT's Avatar
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all i know is my truck (turbo w/ 5speed) is making 16lbs stock and it takes no time at all to reach speed. in fact i cant stop speeding in this truck cause it will speed so easily with the turbo. my gearing is way high and first gear only last a few feet i usually start in second and as soon as that boost kicks in it goes. even with the 12inchs of lift and 40inch tall tires
 
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Old Aug 19, 2002 | 09:51 PM
  #17  
Bugman's Avatar
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From: Pompton Plains, NJ, USA
I have a 2000 F-250 Crew Cab Auto, Two wheel drive with the 7.3L diesel and it puts out 355 horsepower with 605 ft/lbs of torque. I get 18 to 22 miles per gallon with about 800 pounds of tools and equipment in the back all the time. I used to have the same kind of truck but, it had the 5.4 L auto. and I was getting 8 to 12 miles per gallon with the same amount of weight in the bed. I will be adding other mods to the truck in the next few weeks. I cannnot wait!! Bugman.
 
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Old Aug 21, 2002 | 09:09 PM
  #18  
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From: Ivanhoe, Tx , America
Lightbulb The reason Diesels produce "low horsepower"

OK. Remember Watt? He said that 33,000 foot pounds of work per minute was equivalent to one horsepower. If we divide the 6.2832 foot pounds of work we've done per revolution of that weight into 33,000 foot pounds, we come up with the fact that one foot pound of torque at 5252 rpm is equal to 33,000 foot pounds per minute of work, and is the equivalent of one horsepower. If we only move that weight at the rate of 2626 rpm, it's the equivalent of 1/2 horsepower (16,500 foot pounds per minute), and so on. Therefore, the following formula applies for calculating horsepower from a torque measurement:

Horsepower = (torque * rpm) / 5252

This is not a debatable item. It's the way it's done. Period.
Hope this helps

OK.
 

Last edited by Ivanhoe_Farms; Aug 21, 2002 at 09:12 PM.
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