True.

Reason for so many no diesels is weight and cost as others have stated.

 

How much weight were you pulling? What elevation? What rear end ratio? How steep and how long of a climb?

 

The bottom line is that tractive force is the only thing that matters. When I said HP was all that matters we were talking about comparing the engines in the same gear, at the same rpm and with the same final drive ratio. If you are comparing them in that situation, the one with more hp will also have more tractive force. The 6.4 will have more tractive force than a v10 when both are compared below 3,000 rpm because the 6.4 has more hp than the v10 at all rpms under 3,000. Engine torque is important in this situation because more engine torque also means more hp, since both are compared at the same rpm with the same final drive ratio.

Once you start comparing them in different gears, engine torque means nothing because the gearing multiplies torque. That's why you can pull a load better in a lower gear than you can in a higher gear even though your engine is making the same torque. For example, take an engine that makes 600 lbs of torque at 3,000 rpm and has a final drive ratio of 1.0 and compare it to an engine with 300 lbs of torque at 6,000 rpm with a final drive ratio of 2.0. The one with less engine torque will be turning twice the rpms, but it will be making the same hp, going the same speed and making the same tractive force (torque to the wheels) because the gearing advantage.

 

Oh I'm very serious. I go down the road 26k+ very often. I load my goose necks 12 and 14 rolls of hay weighing 1600-2000lbs each. Get a calculator. We're not. Counting trailer, or truck yet. Where not talking about backing up to a loading dock and getting loaded on pavement. We're talking in the field thru ditches over terraces. Not to mention getting loaded by a tractor is very rough. Speaking of which loading up tractors and equiment weighting around 15k is pretty brutal on these trucks. Thr tractors make tbe trailer top heavy. So yea the hay grabs as much wind as that rv. I looked up ford rvs and all I saw was 15ks. I wouldn't be surprised though cause 08 250s w/ 6.4l is rated by for@ 24-26k. Get in your rv and come visit us. I'll show you how i work.

 

Per my HP/torque number a few pages back, are you saying the Hemi will outpull both the V10 and PSD?

 

Well i can only hope i never see you on the road hauling 30,000lbs of hay and 10000 lbs of truck/trailer which makes you 15-20k overloaded depending your truck. I do agree that overloading your vehicle by 20,000lbs "very often" is far harder on the drivetrain than a class a.

Everyone else--class "a" are informative because it presents a worst case Abuse of drivetrain i.e running 26k pounds 100% of time. Btw with tow vehicle my dad has a hard tine keeping his 35' ford v10/chasis tifin under 26. He is a full timer and does need to rartion weight to stay LEGAL and SAFE

 

It's really apparent that you diesel dudes have never really run across a V-10 towing or solo. As a former hopped up 7.3 owner that ate 6 leakers and most hopped Cummins, I can tell you this: if I had added only $3,000 worth of supercharger on my V-10, I'd really stomp you diesels; so if I had the $7500 extra bucks difference in engine costs plus the additional $3-4,000 you diesel dudes have to add to make them work better, then I'd have $11,000 to play with on my V-10 mods. As it stands now, I've spent $300 for a Diablosport Predator programmer, $250 on and Airaid intake, and $35 on a Summit Racing tranny filter. My Maghiteck dif cover is a neutral item. So, for $550 I've got a dependable engine that can beat or keep up with the diesel dudes and with NO problems whatsoever. If you have any questions, just go read your TSB's for whatever you are running and compare them with my TSB's, which are vertually none since 2003.

 

Running a pick up at 40-50k lbs GCW is not uncommon in farm country.

That should keep them busy, the PSD's have a ton of them.

 

A 6.4 with the same $300 programmer will stomp you... And don't forget to take into account mileage, which eats into your budget, at even 15,000 miles a year, the cost saving add up. Oh yeah, and for another $300, we can delete the dpf and get 20 mpg all day long empty, you are at what, 13? And less supercharged...

 

A supercharger is legal. A DPF delete is not.

 

Off road, a dpf delete is fully legal.

But really, I bet a way higher percentage of 6.4s get a dpf delete than a v10 gets supercharged. In fact, I do not recall one on this site that is, but... I would imagine there are a couple.

But again, the v10 is a good engine, it just will not outpull a psd in the vast majority of circumstances. (Man I sound like a broken record)

 

Well a tuned 6.0 or 07 Duramax or cummins then. Supercharge a V10 all you want, it'll tow @ 1mpg and still need a bootfull of revs going up a hill...as goes pure speed when EMPTY/NOT TOWING? who cares, you drive the wrong type of vehicle if that's your argument.

anyway, all in good fun. v10's a solid engine in its own right, just don't wanna tow my backhoe with it day in day out.

 

I wonder if you'll keep your 6.4 after the warranty runs out when you'll have to pull the cab to change out your glow plugs or injectors. It will be along side the poor 6 leakers out there wishing they had a scrufty old V-10 workhorse still chugging along at 200,000 miles at the lowly 11 mpg with a $200 spark plug change.

 

Good idea why bother with a tractor trailer? Single axle is only 65-80 you can do that with a pickup.

 

Isn't it more like $700 spark plug change?