V10 vs psd

[Johnny Langton]

Originally Posted by bill11012 What about the cop cars? They have one. Do they really just put out 130? Some of those are a 200Amp-depends on how they were ordered. JL

[Crazy001]

Wow, this is starting to make my head hurt.

KelVarnson is correct, as usual on this subject. That V10...ANY V10 pulling at it's HP peak is pulling lots harder than ANY stock 7.3 can. There are no two ways about it. I even broke it down somewhere else in this thread, I think around page 20 or so.

It's all about horsepower, folks. You can't have horsepower without torque and RPMs; therefore the PSD is producing lots more horsepower throughout the lower RPM band. Yes, that's due to it's low end torque advantage, but there's still a horsepower advantage there.

Also, as I posted before, 1,000,000 lb-ft of torque @ 1 RPM is ONLY 190 HP! Yes, that means that the "puny" little 5.4L V8 can pull harder than the mythical 1,000,000 lb-ft TQ engine can at 1 RPM.

preppypyro, if a V10 and your truck are geared so that they can each achieve the highest speed possible uphill with a load, putting each at their HP peak at that speed, Bill's V10 powered van would be going faster. The numbers don't lie.

That doesn't mean that the PSD isn't a better towing engine, though. As KelVarnson said before, the PSD is going to tow it at lower RPMs because it makes more power in the 2-3,000 RPM range. Therefore, when Bill's spun up to 4750 pulling a hill, you're spinning a much more relaxed 3,000 RPMs, doing nearly the same amount of work. This is why I love my 6.4 so much.

That being said, a 3V V10 can and will pull harder.

[HuntsDucks70]

Originally Posted by Crazy001

Wow, this is starting to make my head hurt.

you're spinning a much more relaxed 3,000 RPMs, doing nearly the same amount of work. This is why I love my 6.4 so much.

something to consider here, 3K RPM is at the upper limit for the 7.3 (because of the rotational mass of the rotating assembly), they can't spin much faster without a negative effect on longevity and reliability, it is working hard, it's all relative

[Krewat]

Originally Posted by Smokin'

Lets not forget locomotives .

Actually. the shear size of a locomotive's engine makes it totally unfeasible as a gasoline burner.

You can't have a huge displacement engine like that burn gasoline. It won't run efficiently, no way no how. You'd need a whole slew of much smaller cylinders, and the number of moving parts goes through the roof.

Diesel, on the other hand, burns slower. For a huge displacement cylinder, it can still be quite efficient.

On the other end of the spectrum, smaller displacement, gas burners make sense.

And has already been talked about, the Ford modulars are known to go 300K miles without major issues.

[95_Dually]

So as Crazy has once again pointed out, both trucks are awesome. They will both get the job done. Better is an opinion.

Is going further on a gallon of gas better? The answer will be an opinion.

Is going faster better? The answer will be an opinion. (Both trucks will easily exceed the speed limit).

Is noise/less noise better? The answer will be an opinion.

How many miles before the motor is worn out/ how long will you keep the truck? The answer will be an opinion.

We need to agree to disagree on which engine is better in the same chassis. At the end of the day, they all still wear the BLUE OVAL.
We are all passionate about our trucks. That is FACT.

[bill11012]

Originally Posted by Crazy001

Wow, this is starting to make my head hurt.

KelVarnson is correct, as usual on this subject. That V10...ANY V10 pulling at it's HP peak is pulling lots harder than ANY stock 7.3 can. There are no two ways about it. I even broke it down somewhere else in this thread, I think around page 20 or so.

It's all about horsepower, folks. You can't have horsepower without torque and RPMs; therefore the PSD is producing lots more horsepower throughout the lower RPM band. Yes, that's due to it's low end torque advantage, but there's still a horsepower advantage there.

Also, as I posted before, 1,000,000 lb-ft of torque @ 1 RPM is ONLY 190 HP! Yes, that means that the "puny" little 5.4L V8 can pull harder than the mythical 1,000,000 lb-ft TQ engine can at 1 RPM.

preppypyro, if a V10 and your truck are geared so that they can each achieve the highest speed possible uphill with a load, putting each at their HP peak at that speed, Bill's V10 powered van would be going faster. The numbers don't lie.

That doesn't mean that the PSD isn't a better towing engine, though. As KelVarnson said before, the PSD is going to tow it at lower RPMs because it makes more power in the 2-3,000 RPM range. Therefore, when Bill's spun up to 4750 pulling a hill, you're spinning a much more relaxed 3,000 RPMs, doing nearly the same amount of work. This is why I love my 6.4 so much.

I took 10,900 to that scrap yard yesterday, and was running foot to the floor, V10 screaming the whole way . had a really bad head wind, but My speed never went below 69 on the hills, and on some strait stretches i hit 90.
I got an new all time low mpg, 8.1.

I can get why you love your power stroke, you can run them hard and they never make you wonder
" man, should it be turning 5000 RPM for 30 minutes strait?"

[HuntsDucks70]

Originally Posted by Smokin'

Typically, a diesel can be expected to last twice as long as a comparable gas motor, counting out all cases of neglect of course.

Tell that to all the 6leaker owners, Ford and Navistar, maybe they missed that lesson.

[95_Dually]

Originally Posted by HuntsDucks70

something to consider here, 3K RPM is at the upper limit for the 7.3 (because of the rotational mass of the rotating assembly), they can't spin much faster without a negative effect on longevity and reliability, it is working hard, it's all relative

I don't need to turn 3000 rpm even up hill to maintain speed in my truck. It is usually between 2400 (65mph) and 2700 (75mph) on the mostly flat highways. Going up hill will usually result in 2500-2700 (60-65) in 4th gear.

I also do not believe the V10 is spinning those high rpm's for extended periods of time. Just an educated guess though as I do not have any real world experience with the actual rpm's towing.

[Johnny Langton]

Originally Posted by 95_Dually

I don't need to turn 3000 rpm even up hill to maintain speed in my truck. It is usually between 2400 (65mph) and 2700 (75mph) on the mostly flat highways. Going up hill will usually result in 2500-2700 (60-65) in 4th gear.

I also do not believe the V10 is spinning those high rpm's for extended periods of time. Just an educated guess though as I do not have any real world experience with the actual rpm's towing.

What high rpms are you talking about?
JL

[95_Dually]

Originally Posted by bill11012

I took 10,900 to that scrap yard yesterday, and was running foot to the floor, V10 screaming the whole way . had a really bad head wind, but My speed never went below 69 on the hills, and on some strait stretches i hit 90.
I got an new all time low mpg, 8.1.

I can get why you love your power stroke, you can run them hard and they never make you wonder
" man, should it be turning 5000 RPM for 30 minutes strait?"

Brother, I do not think your van will last you 300,000 miles turning 5000 rpm towing 10,000 lbs for long periods of time. You are overworking your motor.

[95_Dually]

Originally Posted by Johnny Langton

What high rpms are you talking about?
JL

4700 where the V10 is making the most Horsepower.

[preppypyro]

Originally Posted by Crazy001

It's all about horsepower, folks. You can't have horsepower without torque and RPMs; therefore the PSD is producing lots more horsepower throughout the lower RPM band. Yes, that's due to it's low end torque advantage, but there's still a horsepower advantage there.

Also, as I posted before, 1,000,000 lb-ft of torque @ 1 RPM is ONLY 190 HP! Yes, that means that the "puny" little 5.4L V8 can pull harder than the mythical 1,000,000 lb-ft TQ engine can at 1 RPM.

preppypyro, if a V10 and your truck are geared so that they can each achieve the highest speed possible uphill with a load, putting each at their HP peak at that speed, Bill's V10 powered van would be going faster. The numbers don't lie.

That doesn't mean that the PSD isn't a better towing engine, though. As KelVarnson said before, the PSD is going to tow it at lower RPMs because it makes more power in the 2-3,000 RPM range. Therefore, when Bill's spun up to 4750 pulling a hill, you're spinning a much more relaxed 3,000 RPMs, doing nearly the same amount of work. This is why I love my 6.4 so much.

That being said, a 3V V10 can and will pull harder.

in 99 were the v10s a 2v or 3v? Cuase in my post I was talking about a 99, like I clearly stated.

The more torque you have, the more towing power you have. The more torque you have the more work ya get done (more load you can pull) More horsepower you have, the more speed you have.

Second of all, I drive rigs for a living, I tow stuff, heavy stuff. Ive drive lots of trucks, and lots of trucks with 350 horse engines (those same engines also had over 1000 ft lbs of torque.)

Now by what your telling me, a v10 truck would be able to outpull that ol kenworth with a 350 cummins in there (had a 13 speed and 4.11 gears) as long as the v10 was a 3v, and had 4:30 gears right? I mean the psd has more advantage cause its lighter, etc. (maybe not a traction advantage)
Now in the same breath, my 87 western star with the 444 cummins should be able to out tow and out speed a 3v v10 cause it has more horspower (8 speed and 4.11 gears also)

Now who do you think would win in a tow between a K/w with a 350 cummins vs a v10, and who do you think would win in a W/S with a 444 cummins vs a 3v v10 in a drag race? We both know the answer. ( yes there are more variables, but with the added weight of a big rig. that should drastically reduce the power of the engine, and give even more of an advantage to the v10)

Also does that mean a 500 horse civic with 300 ft lbs of torque could out pull a v10 truck as long as it had 4:10 or better gears in it?

As a guy that has a lots of experience towing, and what I have experienced, you guys are killing me! I may not know all the math to it, but ive sat in enough seats to tell you that hp dont mean diddly compared to torque while towing.

The 7.3 can, has, and will keep outpulling the v10.

[Johnny Langton]

Originally Posted by preppypyro

99 were the v10s a 2v or 3v?

'99-'04 are a 2V,and '05-present are 3V.
JL

[bill11012]

Originally Posted by preppypyro

The 7.3 can, has, and will keep outpulling the v10.

[bill11012]

Originally Posted by 95_Dually

Brother, I do not think your van will last you 300,000 miles turning 5000 rpm towing 10,000 lbs for long periods of time. You are overworking your motor.

I do this stuff all the time, and it just turned over 163K