I always come read this post every time I'm looking for a good laugh... It just keeps getting funnier as the time goes on.

 

Good real world tests on those videos. Too bad there wasn't a 2006 or newer V-10 with the 3v and Torqueshift tranny with a stock 4.10 rear against those diesels. Against the 2006 6 leaker and 2008 6.4, the old V-10 still wasn't all that far behind. With the newer HP V-10's, I doubt that there would be much difference between the 6 leaker, 6.4 sootbag and the studly V-10. If anything the V-10 would be king of the hill due to the time it takes the diesel turbos to wind up and be effecient.

Pap

 

Yeah, we were hoping someone with a 3V V10 would be able to make it, but no such luck. The biggest problem Mike's V10 had was the 4R100 transmission's tall 1st gear as well as the huge spacing between 1st and 2nd gear.

I have do disagree about your reasoning why the 3V would have been faster, though. My "sootbag" takes between 1-3 seconds to build boost and start making serious power. Did you see in the first video how long it took between when I applied full power and the wheels broke loose? It would take the V10 much longer to climb into the RPM range it needs to make that kind of power with that much weight on a steep hill.

 

I will admit that of all the new diesel trucks, the Ford 6.4 is the closest to staying with or maybe beating the newer V-10's towing up hills. In my experience here in the west, I have been challenged by every new diesel truck out there on one hill or another. The new Chevy's and Dodges are easy to whip and I have just about stayed even with the 6.4's. Of course I have not had the opportunity to tow the same trailer on the test you all did, but I have towed an overloaded 16' utility tandum trailer all over Idaho, Utah, Arizona and New Mexico and it has never had a problem keeping speed. I think the difference in the rear ratio's from the V-10's 4.10 and the new 6.4's with the 3.55 would be real evident in towing. The 3.73's would keep it closer but most all of the new 6.4's that I have seen are coming from the factory with 3.55's to help their mileage, but will hurt their pulling and towing ability.

Pap

 

Honestly I'm not sure. The 6.0L and 6.4L engines have a pretty wide sweet spot as far as making power. Peak torque is at 2,000 RPMs an peak HP(at least 6.4L) is at 3,000. The TorqShift has no trouble placing the engine between 2500-3,000 RPMs during WOT at any speed. So gear for gear the rear end gears would make a small difference, but the 3.55s would be able to hold gears a bit longer so I suspect there would be very little difference at WOT.

I think there would be a difference cruising on the highway, though. My 3.73 gears are part of the reason that at 19,500 lbs towing to WI my truck very rarely had to downshift. It was able to pull all but the steepest hills in overdrive, which was nice because the transmission rarely had to shift. 3.31s or 3.55s may have forced it to downshift a bit more often, but I suspect it would have still handled the load pretty well.

Mike's V10 truck that we tested that day has 3.73s. That combined with the 4R100 transmission meant that it had a very tough time getting going in 1st gear. In this situation his truck may very well have done better if it had 4.10s. Because of the amount of weight and hill we were pulling his V10 never was able to rev past 3,000 RPMs, but it was VERY close. That extra gear reduction may have been enough for it to continue accelerating in 1st gear. Somehow I doubt Mike would be willing to spend the money to change to 4.10s simply to prove a point, however.

 

What are you doing in WI?? Did you move and not tell us about it?

 

"Too bad there wasn't a 2006 or newer V-10 with the 3v and Torqueshift tranny with a stock 4.10 rear against those diesels." - Yeah, somebody's gotta be the bottom Hopefully more real world tests get put together.

 

Your 7.3 would be trashed in a test with a 3V V10.

 

Sounds like that 6.4 was sick. Your PI V10 has 310HP and the 6.4 should have 350.

 

Yep.

 

Lets just say I doubt it. You're putting a lot of faith behind the 3V V10's HP. When pulling heavy give me torque all day, every day.

 

Yeah, just got up here a week and a half ago. That's why we met in Millersburg for that comparison that weekend, as that was the last weekend I was in the state.

I changed jobs, went from inactive to AGR with the Army Reserves. I'm a recruiter now!

 

I thought Josh's mom put an end to this thread?

 

I just looked at the videos again to be sure. Your prized 7.3L engine never got above 26 MPH the whole way up the hill. Mike's 2V V10 while running the stock tune stayed between 35-40 MPH once it cleared the steepest part of the hill.

A 3V V10 with it's 5R110 transmission would have left the 7.3 like it was standing still. Have you driven all 4 engines up a hill with the same trailer? I have. I was the one driving in most of those videos. The PSD was much LOUDER with it's straight pipes and stacks, but the V10 pulled harder.

Really was a shame we weren't able to try that 7.3L with the chip turned up. Would have either gone lots faster or blew up the engine with high EGTs...

 

as soon as im finished with my medical discarge ill take you up on the v10 vs 7.3. im gunna be driving cross country with my gooseneck. im gunna put the stock injectors back in for the trip. plus i have the 6 pos chip with stock as a setting. i just find it really hard to beleave that the 7.3 could only get 26 mph. what was the gearing in the trucks? yes i do believe it. i saw the video, just doesnt make any sense.