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most efficient acceleration is shifting at the TORQUE peak, not at the HP peak....
Negative.
Datalog acceleration rate with your Xcal with higher shift points than torque peak and see what happens.
My car makes peak TQ @ 3800rpms.
It makes peak HP @ 6200rpms.
My shift points are at 6800 on the 1-2, 6500 on the 2-3, and 6000 on the 3-4. By shidfting at those points,the car is quickest down the track and makes the most efficient use of the available power.
JL
Negative.
Datalog acceleration rate with your Xcal with higher shift points than torque peak and see what happens.
My car makes peak TQ @ 3800rpms.
It makes peak HP @ 6200rpms.
My shift points are at 6800 on the 1-2, 6500 on the 2-3, and 6000 on the 3-4. By shidfting at those points,the car is quickest down the track and makes the most efficient use of the available power.
JL
right on the money, thanks for correcting this guy, some of these people just don't get it! whats the deal with these folks, don't they know people who frequent the site actually take their input as fact.
I do know, It comes from tq X RPM = HP. the V10 has its tq peak at a much higher RPM, And has 12 more HP.
Wow...so an engine with 600 lb/ft of torque at 2,000 rpm has 1.2 million horsepower? And you're bragging about your meager 265 hp.
Actually Bill, Horsepower = torque X rpm / 5252. You are hung up on horsepower numbers. So tell me, how much horsepower is produced by your 265 hp V10 during the final 1,000 ft. climb into Eisenhower tunnel? What about a 362 hp V10? At the start of the 1,000 ft climb, they are producing roughly 186 and 253 respectively. At the top, they are producing roughly 178 and 243.
Of course, all of this hinges on the rho value the engineers used to determine horsepower or the elevation of the dyno they used to test the engine. So the question then becomes, does a turbo allow a psd to maintain sea level performance at high elevation?
The 12 horsepower you mentioned is erased at only 1,000 ft elevation. The average elevation of the United States is about 2,000 feet. So on average, which engine has 12 more horsepower?
that is funny that you say " more power" . The V10 has more. 97-99 they had 30 more than the 7.3, 00-04 70 more, and 05- 127 more.
I am sure that is true, but I have owned both and the PSD pulls better than the V10. And the PSD does get better miliage while towing. From what I have seen.
True, but the V10 sounds like a UPS truck IMO. Dont get me wrong I loved my V10. Some times wished I still had it. But I would not trade it for the PSD.
One more thing, there is not right or wrong answer to the gas vs diesel question. It can be argued for ever with out any one being 100% right. The only thing we can agree on is we like to drive Fords.
right on the money, thanks for correcting this guy, some of these people just don't get it! whats the deal with these folks, don't they know people who frequent the site actually take their input as fact.
Chill dude
the 'facts' were presented about a month and 1000 post ago.....
the rest has been banter....
some even add emoticons to indicate joking and some NEVER try to demean others.....
but it takes all kinds to make up a world, doesn't it ?
BUT, BUT, BUT ....
HP is NOT what gets you down the road.... torque is !
Yes. Rear-wheel torque. You get the most of that at your horsepower peak, provided you're geared right.
Originally Posted by Rush117
Wow...so an engine with 600 lb/ft of torque at 2,000 rpm has 1.2 million horsepower?
That's silly. Power still equals torque times RPMs, the 5252 is just to get the units right (horsepower). It's still perfectly valid to say, "Power equals torque times RPM".
Originally Posted by Rush117
Actually Bill, Horsepower = torque X rpm / 5252. You are hung up on horsepower numbers. So tell me, how much horsepower is produced by your 265 hp V10 during the final 1,000 ft. climb into Eisenhower tunnel? What about a 362 hp V10? At the start of the 1,000 ft climb, they are producing roughly 186 and 253 respectively. At the top, they are producing roughly 178 and 243...
...So the question then becomes, does a turbo allow a psd to maintain sea level performance at high elevation?
That is all interesting information, and an interesting question at the end. I would have to think that while a turbo helps at altitude, there still must be some detrimental effect. I doubt that you get sea-level performance at any altitude just because you have a turbo. But I don't know for sure...
Originally Posted by 02GrayPowerStroke
I am sure that is true, but I have owned both and the PSD pulls better than the V10. And the PSD does get better miliage while towing. From what I have seen.
OK, but are you talking about the PSD with all of the mods shown in your sig? Because my stock 7.3 is a DOG (not surprisingly, with only 250 HP). It's not hard for me to imagine a V10 outpulling it.
As a newbie it's been interesting reading the different viewpoints regarding the V10 vs. PSD. HAving a 5.4 F-150 and wanting to trade up for more
towing capability I had to decide whether to go diesel or gas. A buddy of
mine back east got a hell of a deal on a Dodge megacab - brand new at a wholesale price. I just couldn't bring myself to buy or drive a Dodge!
My neighbor has a Dodge w/DRW and swears by them too. But for me I went with the V10 because it may not have all the torque of the PSD it's
plenty for what I need (5000+ lb., & maybe a little more down the road) and it's not my everyday driver so the mileage isn't a real big deal - might even be a little better than the 5.4 towing. And when we're out in the
sticks somewhere I can pull into a gas station and know they've got gas but they might not have diesel. Like someone else wrote - it's not that one is necessarily better than the other, just depends upon your particular situation and needs. "Can't we all just get along"
OK, but are you talking about the PSD with all of the mods shown in your sig? Because my stock 7.3 is a DOG (not surprisingly, with only 250 HP). It's not hard for me to imagine a V10 outpulling it.
Thats a good point. But I think most people on this site are not running stock. I have been wrong before.