Gas vs PSD
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
I forgot to mention that these guys doesn't know what watts/hp is. You can't judge 2 systems based on watts/hp if the factors are different. They don't relize that yet.
I.E you can clearly see how either a 60/100 watt on 120v circuit will perform. But now change it to. A 60w 220v and a 80w 120v. How does that compare? Volts is your pps "rms" amps is your "tq". The system has changed. That 60w on the 220v tells you how the power ismoving thru that system. Prolly has more amps.
Since the gasser is making 35 more hp at 1 1/2 the time and at least 25% less tq turning the rpms. You can't say oh that 6.8 is more power cause it all about the hp. Wrong.
I.E you can clearly see how either a 60/100 watt on 120v circuit will perform. But now change it to. A 60w 220v and a 80w 120v. How does that compare? Volts is your pps "rms" amps is your "tq". The system has changed. That 60w on the 220v tells you how the power ismoving thru that system. Prolly has more amps.
Since the gasser is making 35 more hp at 1 1/2 the time and at least 25% less tq turning the rpms. You can't say oh that 6.8 is more power cause it all about the hp. Wrong.
I get what you're saying (sort of), but you're comparing a static supply coupled with a static draw to an engine that operates over an entire RPM range.
--
To the guy who says BS to a 50% improvement in mpgs going from 3.73s to 4.88's, that's towing heavy. And it just points out how a V10 can greatly benefit when operated in a range that suits it. But never mind, we're all lying.
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
But you don't run a 60w light bulb from 1 volt through 110 volts neither.
I get what you're saying (sort of), but you're comparing a static supply coupled with a static draw to an engine that operates over an entire RPM range.
--
To the guy who says BS to a 50% improvement in mpgs going from 3.73s to 4.88's, that's towing heavy. And it just points out how a V10 can greatly benefit when operated in a range that suits it. But never mind, we're all lying.
I get what you're saying (sort of), but you're comparing a static supply coupled with a static draw to an engine that operates over an entire RPM range.
--
To the guy who says BS to a 50% improvement in mpgs going from 3.73s to 4.88's, that's towing heavy. And it just points out how a V10 can greatly benefit when operated in a range that suits it. But never mind, we're all lying.
As far as gearing goes. When you go to a taller gear you raise the rpm to keep the same speed everything else being the same. Doing that is raising fuel useage. We all know that. If you have found a way to use less fuel and run more rpms get a pat. You'll be a rich man. Taller gears take more rpm to turn simple as that. The taller gear transfers more tq to ground. But it cost yoy more fuel. You can save fuel on the bottom end cause you don't have to turn as much to get going. That's all the savings there is. To run your truck at 65 mph w/ 3:73 will use less fuel than at 4:88. Heck there os a difference on the bottom line for 4.11s. Its just a few dollors for me. But then again I'm not using gears to make up a 100 ftlbs of tq. To use your sarcasism oh wait tq doesn't matter. Wrong. If that was the case you wouldn't need to lower your gears. Doesn't the math show that the gears transfer more tq per rpm than hp? Hmmmmm. Your gearing to get tq.
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
JL
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
JL
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
You know what I'm saying. I didn't say thst electricty snd the combustion was the same. I was saying you can't rate 2 systems on dir. fferent factors by hp or watt. I made that very clear.
As far as gearing goes. When you go to a taller gear you raise the rpm to keep the same speed everything else being the same. Doing that is raising fuel useage. We all know that. If you have found a way to use less fuel and run more rpms get a pat. You'll be a rich man. Taller gears take more rpm to turn simple as that. The taller gear transfers more tq to ground. But it cost yoy more fuel. You can save fuel on the bottom end cause you don't have to turn as much to get going. That's all the savings there is. To run your truck at 65 mph w/ 3:73 will use less fuel than at 4:88. Heck there os a difference on the bottom line for 4.11s. Its just a few dollors for me. But then again I'm not using gears to make up a 100 ftlbs of tq. To use your sarcasism oh wait tq doesn't matter. Wrong. If that was the case you wouldn't need to lower your gears. Doesn't the math show that the gears transfer more tq per rpm than hp? Hmmmmm. Your gearing to get tq.
As far as gearing goes. When you go to a taller gear you raise the rpm to keep the same speed everything else being the same. Doing that is raising fuel useage. We all know that. If you have found a way to use less fuel and run more rpms get a pat. You'll be a rich man. Taller gears take more rpm to turn simple as that. The taller gear transfers more tq to ground. But it cost yoy more fuel. You can save fuel on the bottom end cause you don't have to turn as much to get going. That's all the savings there is. To run your truck at 65 mph w/ 3:73 will use less fuel than at 4:88. Heck there os a difference on the bottom line for 4.11s. Its just a few dollors for me. But then again I'm not using gears to make up a 100 ftlbs of tq. To use your sarcasism oh wait tq doesn't matter. Wrong. If that was the case you wouldn't need to lower your gears. Doesn't the math show that the gears transfer more tq per rpm than hp? Hmmmmm. Your gearing to get tq.
JL
Cargo Master
Joined: Aug 2005
Posts: 2,051
Likes: 1
From: Alberta, Canada
They had him... I had suggested getting a flat deck and using my truck to haul it somewhere else, but he declined. You can only do so much.
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Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
Your not the one that said anything about it. But you would lose that arguement cause it happened. And your crazy there's a lot of pressure on the combustion stroke. I know where the fuel rail is. I know what's between the coilpack and the hood. I ve seen the hood. Not pictures the hood. I've read the work order. My buddy doesn't want his stuff on line or I would post it here. But you know, if this is all yall can pick at. Hmmmmmmm
Posting Guru
Joined: Apr 2006
Posts: 2,216
Likes: 7
I dumped my 6.0 before it ran out of warranty and bought a '99 V10.
I enjoyed that truck so much I bought a new 2010.
The maintenance costs and a truck I can own out of warranty are key to me. I have seen local 6.4's with problems and I'm glad I never went down that road. I may buy another diesel in the future but those motors are so expensive to repair I just can't justify it for the 4000 miles my truck is used each year on vacation or working.
I enjoyed that truck so much I bought a new 2010.
The maintenance costs and a truck I can own out of warranty are key to me. I have seen local 6.4's with problems and I'm glad I never went down that road. I may buy another diesel in the future but those motors are so expensive to repair I just can't justify it for the 4000 miles my truck is used each year on vacation or working.
Cargo Master
Joined: Aug 2005
Posts: 2,051
Likes: 1
From: Alberta, Canada
Did I say that out loud? 
Thread Starter
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Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
All the DRW trucks have hydroboost from what I have been told.
Lead Driver
Joined: Nov 2007
Posts: 5,139
Likes: 209
I acknowledged that it's possible a gear change can improve mileage.
I never called "you all" liars, or even implied it.
Posting Guru
Joined: Mar 2008
Posts: 1,537
Likes: 0
From: Dongola, IL
(there are also many times more 6.0Ls than Duramax's......)
Hydro-boost brakes are light years ahead of vacuum brakes on a diesel..... I know, I have used and worked on both.
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
Show me. I wanna see it. You want me to believe more rpms can = less fuel? No way. My 6.0 uses more fuel at more rpm. Dude when you hit a strain like wind, weight, a hill, or all of them yoy ADD fuel to maintain speed or gain speed. Say whatcha want. I love the idea though.