What RPM do you climb with on v10?

[ctcamper]

I believe the redline for the V10 is around 5200?
What is a good rpm to run steep grades at?
From what I hear the engine doesn't mind running long periods at high 4K or 5K, it just takes some getting used to. I have to break old habits with big blocks as I have a tendency to back down that high up lol

[Batman_777]

I had the V10... It screams like the engine it going to jump out when climbing. This was mentioned in another thread. In the other thread, the engine did blow going up I-70. No matter what they say, your instincts say, this is just not right. I soon after traded it for a DP. The gas coach was just too big (38 ft) for the frame and the motor (Ford Triton V10) was just not enough for it. The Triton V10 is the largest gas engine you can get, so there is nothing else out there. The ride stability can be improved with after-market front end stuff. The gas is fine for Motorhomes around 22-32 ft.

[Mekanic]

The Ford Triton V-10 is derived from the Triton V-8. I'driven a few of the V-8 Car in my past job as a police officer. I can tell you these engine are tough as nails as long as they have oil and coolant in them.
Remember the special connecting rod and rod caps that Navistar is now using on thier diesels? These engine have that very type of rod/rod caps interface. In fact I belive they were the first auto maker to use them(1989 or so).
These angines are set up with a slightly higher RPM power range than the engines they replaced. It wouldn't bother me a bit to twist one to 5000 for long periods of time.

[ga traveler]

I have been out west three times. (2007 08 09) I pulled the steepest grades at 4000 rpm in second gear with no problems. I talked to Fords head engineer.( I see him every year at the dealer show in Louisville, Kty.) He recommended 4000 rpms for sustained periods of times.

[az bound]

The peak is 362 hp @ 4750 rpm. These big bores are made to produce HP at higher RPMs. Just step on the gas and pass all those diesel pushers.

[Clifftall]

Quote:

Originally Posted by az bound The peak is 362 hp @ 4750 rpm. These big bores are made to produce HP at higher RPMs. Just step on the gas and pass all those diesel pushers.

Its amazing how many people think that a gas coach can't climb mountains. I've been over every mountain this country has , a few times and usually pass most diesels in my way.

[John Mo]

I don't use the cruise control much except for an occasional break to rest my foot for a few minutes. The engine computer doesn't seem to have a problem running the engine at 5200 RPM because it'll do that on the cruise control if I'm not quick enough to kill it before the next grade. But that's exactly what i do before it's hardly finished revving up on that downshift.

I don't mind a bit holding 4200-4600 RPM on a grade and I don't think it's hurting the engine a bit to run at 5200 RPM for a bit, but I don't like the noise -- you know, the sound of all that fuel being sucked in.

[RoadRohrers]

Don't think it hurts the engine provided it isn't otherwise cursed with a weak part. I do hate the noise, the screaming. When using cruise control at 55 mph, the downshift immediately throws engine way over 4,000 rpm. Too much. I just installed teh 5 Star Tuning engine tune. Yesterday on the first drive, this was one aspect I immediately noticed. On grades, it held a higher gear much longer taking full advantage of the torque at the 3,000 rpm range. Other big differences were better shifting, smoother up through the gears and much, much better throttle response.

No, I am not taking kickbacks from 5 Star Tuning, but I am willing.

[radams]

It's torque that gets you up and over the mountains, not HP. Maximum torque on the Ford V10 is reached at about 3200 RPMS. Shift your tranny to keep the RPMS there and it's the best you can do.

[Tiny Dog]

Quote:

Originally Posted by radams It's torque that gets you up and over the mountains, not HP. Maximum torque on the Ford V10 is reached at about 3200 RPMS. Shift your tranny to keep the RPMS there and it's the best you can do.

Not true. Torque is a measured twisting force. Horsepower is a calcuated measurement of work. An engine that is capable of running at 4000rpm will run much faster at 4000 than at 3200.

[Batman_777]

True for HP:
Horsepower is a mathematically derived number meant to give some perspective on how much work an engine can produce relative to a horse.

Read more: How to Calculate Shaft Horsepower From Torque | eHow.com How to Calculate Shaft Horsepower From Torque | eHow.com

[Pirate]

I have a 37' 06 and am nothing but impressed with the climbing ability, while towing 4.5K lb van. I don't like that the puter will mash the RPM's so high. I try to catch it and keep it at 4K or below, even if I have to slow down. It sounds like it is going to self destruct when the RPM's get too high.

[ctcamper]

Quote:

Originally Posted by Batman_777 True for HP: Horsepower is a mathematically derived number meant to give some perspective on how much work an engine can produce relative to a horse.

hehe gas engines are in horses, diesels are in oxen power


Yes I am impressed with the climbing ability of the v10 also, I think it does better than my old 454 even on the p32 chassis

That cruise control is annoying though, it downshifts and tachs out the revs and then it downshifts on downhills when I usually want to coast and bring up speed. So it is a constant battle on up hill tapping the brake before it jumps down a gear and doing the same for downhills

[frankdamp]

I remember hearing a Honda racing motorcycle some years ago. It was a 50cc three cylinder 4-valve dohc. Peak torque was a 18,000 rpm and peak horsepower at about 26,000. They got something like 12 horsepower out of that little jewel. With such a narrow power band, it had an 18-speed transmission. The rider had the clutch pulled so often that the bike didn't do that well in the races. You can't transmit the power to the wheels if the clutch is pulled to shift gear.

If you've been around motorcycles much, 10,000 rpm is fairly normal even on street bikes. I don't have an issue with my V-10 running 5000 on hills. I figure the Ford guys who did the transmission programming know what the engine is capable of doing.