Gas vs PSD
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
That didn't prove anything, it still had 5 seconds to make up. Yes, it took 5 seconds longer to go 700 feet than the v10 did. And, since the hill was done, we have no idea if the v10 had more in it or not. And....it was a srw 3/4 v10 vs. a dually 1 ton psd. Put them in the same body and see what happens.
And yes, this had been discussed over and over. It "proved" nothing. And look at the dieselpowermag article that showed the v10 with less hp to the rear wheel than the psd, significantly less. That has been argued too.
And yes, this had been discussed over and over. It "proved" nothing. And look at the dieselpowermag article that showed the v10 with less hp to the rear wheel than the psd, significantly less. That has been argued too.
Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
Regardless of whether you think they are making stuff up, until we get a v10 and a psd on the same dyno, same day, that is what we have to go on. Same with pulling, until we get a same age v10 and psd together, there is not much to go on.
Edit: yes I know there was a 7.3 in the test against the 2v v10, but there was obviously something wrong with it, so until you get a good running one, that one doesn't count much either.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
As I've said before in this thread, let's take two electric motors as an example.
Both are 1 HP - one spins at 3600RPM, the other at 1800RPM. By definition, the 1800RPM 1HP motor is putting out twice as much torque. However, if you are using either one to spin say a fan in an HVAC unit, and you want that fan to spin at a certain rate, you have to gear the 3600RPM motor at a 2:1 ratio. The 1800RPM motor can be a 1:1 and STILL GET THE SAME WORK DONE.
So, in this instance, horsepower is a PERFECT way to compare dissimilar engines with different RPM ranges. (Side note: that 3600RPM motor is going to spin twice as fast, but also be a lot smaller, and weigh a lot less. Think PMGR starters. Smaller motor, higher revving, less torque from the motor, but with gear reduction it puts more torque into the flywheel than a standard 1:1 big-ole starter motor)
BTW your rpm range for the 325hp diesel is wrong, it makes 1450ft/lbs at 1150rpm NOT 2100.
So you want to redo your math? Ok using your number 1450 X 1.12 X 3.73 = 6057lb-ft to the wheels. (not sure about your math as your trans ratios don't make sense but ok, but using it changes a LOT )
I promise you that your V10 will NOT out pull taht 325hp diesel. using fuzzy math doesn't change physics.
So you want to redo your math? Ok using your number 1450 X 1.12 X 3.73 = 6057lb-ft to the wheels. (not sure about your math as your trans ratios don't make sense but ok, but using it changes a LOT )
I promise you that your V10 will NOT out pull taht 325hp diesel. using fuzzy math doesn't change physics.
Post Fiend
Joined: Mar 2006
Posts: 7,841
Likes: 0
From: Vacaville, Ca
Yeah....the beat goes on...and nobody is willing to have a pull off....same ol story different day....lots of math and little incentive to take a small road trip to bring the debate to a head in a REAL WORLD challenge. LMAO!!!!!!
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FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
There have been two separate VIDEOED comparisons driven by this very thread, plus a third from Johnny Langton comparing his V10 to another PSD.
Gotta look outside the box so to speak, to find them. One of them is here.
V10 vs. PSD comparison. WITH VIDEO! - Ford Truck Enthusiasts Forums
Elder User
Joined: Apr 2009
Posts: 685
Likes: 0
From: Spokane, WA
There have been two separate VIDEOED comparisons driven by this very thread, plus a third from Johnny Langton comparing his V10 to another PSD.
Gotta look outside the box so to speak, to find them. One of them is here.
V10 vs. PSD comparison. WITH VIDEO! - Ford Truck Enthusiasts Forums
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
And personally, I could give two craps which ones get to the top of the hill first
That's like comparing bling and seeing who has the biggest pile of crap around their neck. If you have 100oz of gold around your neck and payed $900/oz for it, while I have only 60oz and payed $500/oz for it, who wins? The trick is who can swim when the river rises.
