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Posts: 5874
| Troy,
Yes, the 4.6L is the smaller of Ford's V8's. I have the 5.4L in my F150, and pull the Tuffy 1890. I can tell it's back there. I slow down going up grades, and when heading in to a strong headwind, and such. Does that mean I gotta get a new, bigger, more powerful truck? I don't think so. Not gonna happen for at least two years, and another 50K miles. That'll make 250K+ on this one. On the original tranny, with no work done to it.
When I went to Moline last fall, I towed with my partners DuraMax. Now that is a pretty nice vehicle to tow with. Never knew the boat was back there the whole trip!
As for the difference in pulling loaded and empty, there's a big difference in RPM's if you pull with OD off loaded, and OD on empty. If you pull in OD, the RPM's should be the same. Lockup convertor will make this so. I pull the 1890 with OD off, and my 75 MPH RPM's are nearly 3000. I tend to drive closer to 65 when I am towing these days. Way better mileage when I go 65 vs 75!
Yes, the trans cooler probably is the best advice here. I agree wholeheartedly! hehehe
As for 250 HP out of the V6, all I have to say is my 97 5.4L V8 is rated at 270. But I guess that 20 HP is all that is needed to make it a viable tow vehicle.
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