Help. What RPM is optimal?
#1
Help. What RPM is optimal?
I was hoping one of you could help me. I've got a 1999 F-150 with the 4.6 litre and the manual tranny. It's geared with the 3.55 for what that's worth. Anyway, my wife and I just bought a very small camper trailer and I need some towing advice. 5th gear (overdrive) is out of the question for towing as I suspected and quickly confirmed. I can however, set the cruise at 65 in 4th and it will hold doing right at 2500 RPMs. It will also hold 70 in 4th, but at about 2900 RPMs. Do any of you happen to know at what RPM the truck has the most torque?
In case you haven't already figured it out, I'm a COMPLETE idiot by and large in terms of mechanical functions, so forgive me if I've used incorrect terminology in my attempt to get some advice. Any assistance you can offer would be much appreciated. Thanks in advance for any and all advice.
In case you haven't already figured it out, I'm a COMPLETE idiot by and large in terms of mechanical functions, so forgive me if I've used incorrect terminology in my attempt to get some advice. Any assistance you can offer would be much appreciated. Thanks in advance for any and all advice.
#2
Originally Posted by iddave
I was hoping one of you could help me. I've got a 1999 F-150 with the 4.6 litre and the manual tranny. It's geared with the 3.55 for what that's worth. Anyway, my wife and I just bought a very small camper trailer and I need some towing advice. 5th gear (overdrive) is out of the question for towing as I suspected and quickly confirmed. I can however, set the cruise at 65 in 4th and it will hold doing right at 2500 RPMs. It will also hold 70 in 4th, but at about 2900 RPMs. Do any of you happen to know at what RPM the truck has the most torque?
In case you haven't already figured it out, I'm a COMPLETE idiot by and large in terms of mechanical functions, so forgive me if I've used incorrect terminology in my attempt to get some advice. Any assistance you can offer would be much appreciated. Thanks in advance for any and all advice.
In case you haven't already figured it out, I'm a COMPLETE idiot by and large in terms of mechanical functions, so forgive me if I've used incorrect terminology in my attempt to get some advice. Any assistance you can offer would be much appreciated. Thanks in advance for any and all advice.
#5
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I've towed a small 5x8 enclosed trailer filled to the gills with the bed filled to the gills too, and I can hold as low as 55 in 5th on cruise control with 3.55's and a V-6..........
By the way, that tranny officially limits your towing to 3500 pounds. Any more than that is rough on the input shaft.
The 4.6 will rev all day. I wouldn't be afraid to run one at 4000 rpm continuously.
By the way, that tranny officially limits your towing to 3500 pounds. Any more than that is rough on the input shaft.
The 4.6 will rev all day. I wouldn't be afraid to run one at 4000 rpm continuously.
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I used to haul a 6000 lbs boat with a v8 inboard engine with my v6 stick shift F150.. never a problem doing highway. I used to drop it in 5th at 65 and she'd pull fine.
Personally, feel free to down shift, that's what that stick is for!
The weakest point in the M5OD, is the input shaft, but if you take it easy when you release off the clutch, you will be good to go.
Personally, feel free to down shift, that's what that stick is for!
The weakest point in the M5OD, is the input shaft, but if you take it easy when you release off the clutch, you will be good to go.