PSDExcursion

Millstone NJ

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The Caterpillar C15 15.2L diesel for on highway trucks comes with HP ratings of 435 to 625 with Torque from 1550 to 2050 ft lb of torque. There is no way in hell a 500HP gasser like the V10 in the Dodge SRT-10 pickup will move 80,000 lbs up a grade like a 500HP diesel. Try telling an owner-operator that 500 ft lb tq will work just the same as 2050 ft lb tq as long as it has the same HP.
2002 Chevy Express 3500 8.1 155" WB passenger van
41 Ft 2003 Thor Citation 41-ZBSR TT w/ Hensley Arrow
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BertP

Edmonton, Alberta, Canada

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Quote: The Caterpillar C15 15.2L diesel for on highway trucks comes with HP ratings of 435 to 625 with Torque from 1550 to 2050 ft lb of torque. There is no way in hell a 500HP gasser like the V10 in the Dodge SRT-10 pickup will move 80,000 lbs up a grade like a 500HP diesel. Try telling an owner-operator that 500 ft lb tq will work just the same as 2050 ft lb tq as long as it has the same HP.
Why not?
Bert
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PSDExcursion

Millstone NJ

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Quote: Quote: The Caterpillar C15 15.2L diesel for on highway trucks comes with HP ratings of 435 to 625 with Torque from 1550 to 2050 ft lb of torque. There is no way in hell a 500HP gasser like the V10 in the Dodge SRT-10 pickup will move 80,000 lbs up a grade like a 500HP diesel. Try telling an owner-operator that 500 ft lb tq will work just the same as 2050 ft lb tq as long as it has the same HP.
Why not?
Bert
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All4fun

Calgary, Alberta

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Wow! you guys are persistant, this thread started back in June !
Fraid I have to side with Bert on this. HP is a measurment of Work vs Time. If both engines are 500HP then they are both capable of doing the same amount of work in a given amount of time. One may do it with 450 ftlbs @ 3500 RPM (less force but at a faster rate), while the other will do it with 2000 ftlbs of trq at 1200 RPM (more force at a slower rate.
The nice thing with the diesel engines is that because the trq is developed down low, you can keep the engine RPM down low and keep reasonable mileage. I find my 6.5 TD has a vary narrow band where it's happy 1800 RPM is peak trq while 2200RPM is peak HP but because the trq is available there it takes one hell of hill to push it out of that range. I seldom ever even have to go for fourth(5 spd mnl)My experience with gassers is that you will have to down shift to get the engine up into it's peak HP RPM range, perhaps even twice to get those revs way up there where it makes peak HP. There is more than one occasion when I had my 5.7L gasser that I wished I had a tach as the engine was just screamin down in 2nd gear but things were running cooler and the truck was movin' faster.
OK, have at er... : )
John
JD
'07 GMC Sierra 2500HD CC SLT 4x4 Duramax
'05 24FB Thor Fury
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Joe N.

East Texas

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Buy what you want and don't worry about all the arguments. A diesel may make sense if you are going to do a lot of towing but a properly equipped gasser will do the job also. A diesel generally does get better mileage but it takes a lot of miles to recover the initial higher cost of the diesel. A diesel engine should outlast a gas engine by several times but how many people keep a vehicle that long?
The majority of my driving is commuting but I do have all that available torque when I need to tow something. I bought a diesel because I wanted to try one. If I had it to do over I would buy another diesel.
Joe N.
04 Dodge CTD 2500 Quad-Cab 4X4 48RE
04 Fleetwood Prowler Regal 330FKDS
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PSDExcursion

Millstone NJ

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You should have purchased the Hemi since it has more HP than the Dodge Cummins Diesel and cost $5000 less , then you could tow a bigger TT.
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PSDExcursion

Millstone NJ

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Quote: Fraid I have to side with Bert on this.
Dumb and dumber. On paper and on the highway it's not the same.Take out 75% of the torque of an engine and it will slow it down.
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BertP

Edmonton, Alberta, Canada

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Quote: Quote: Fraid I have to side with Bert on this.
Dumb and dumber. On paper and on the highway it's not the same.Take out 75% of the torque of an engine and it will slow it down.
Again, why? You make some pretty grandiose statements, Joe, but you don't back any of them up with any facts. Just explain your position without resorting to any emoticons.
Bert
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PSDExcursion

Millstone NJ

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Quote: Quote: Quote: Fraid I have to side with Bert on this.
Dumb and dumber. On paper and on the highway it's not the same.Take out 75% of the torque of an engine and it will slow it down.
Again, why? You make some pretty grandiose statements, Joe, but you don't back any of them up with any facts. Just explain your position without resorting to any emoticons.
Bert
At least Ford isn't as clueless as you since they rate the 255HP 5.4 E350 with 4.10's at 13,000 lb GCWR vs 20,000 lb GCWR for the 235HP 6.0 PSD E350 with the same 4.10's.Step away from your computer and go test the combo's out in real life.
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topless

Wichita, KS

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I'll throw in on this, just because there are things that haven't been mentioned about diesels yet. With an air intake, exhaust, and a chip, any modern diesel will increase both hp and torque dramatically. http://www.edgeproducts.com/ With this chip you can add power in increments as you want. I've been around them being used in Ford and Dodge and they do everything advertised. My son drives and '04 Dodge 1t,crewcab,longbed, dually and gets 24+ mpg at 70 mph. When he pulls a trailer @ 70 gets 18mpg. That is with the chip only, he just put on a cone air filter yesterday. The only down side to those chips is the power is addictive. I had a 3/4 ton '03 Ford PS 4x4, crewcab, that with all 3 mods, would smoke all 4 tires and ran 13.7 in the 1/4 mile. I had 4" turbo back exhaust that I could only hear with the windows down. I had way too much fun driving away from kids in riced out Hondas. I sold it and my only diesel is my MB chassis Gulfstream G-24, so far I haven't found a chip in this country , but I will.
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