Forum Discussion
transferred
Jul 04, 2015Explorer
blt2ski wrote:
Then where I am at, it is illegals to do over 60 mph with a trailer in tow, and or if you weigh.over 10000 lbs be over you how or gcw! If you are towing at 85, you have a BIG ticket, reckless endangerment, and possibly a trip to local jail house.
At 15000 over and 90 sq ft of frontal are it takes ~135up to go 60 mph. Add an additional 40 or so hp per 1% grade. So 60 on a 5% is a minimum 335hp. If you are at 25k lbs try 175 at 60, US an additional 60 or so per 1%, or almost 500 ponies!. No one for the most part has that hp.
J2087 or what ever spec, to achieve the gcwr, min speed is 35 or 40 on a 5% grade. No where near 60 mph, much less 85 mph! Min speed in Washington is 40 mph. So the 15k+ 35 minimum, is 5 mph under min speed. Not that too many leo's will ticket one if you are in right hand lane. In BC, if under 40, there are signs on the interstate that state, Oliver off freeway, or you will be escorted OFF the freeway. Along with a BIG ticket.
One should be reasonable with expectations on some roads. 60 is not always reasonable.
Marty
Marty, the 85mph figure was referring tho the speed OTHER (non-towing) traffic is doing. The speeds cited are illustrative of the fact being capable of doing higher speeds is a good thing for reasons various. If the speed limit when towing is 55 then doing that speed is preferable to going 30mph (and 30 is preferable to 20 etc etc) unless there is heavy traffic conditions.
Turtle&Peeps- your post I understand and it has several points I don't disagree with but two things I must check you understand from my posts:
1. I know going 55 (or whatever the limit is per state) up Grapevine w/15k likely won't happen but, as stated above, 40mph is safer than 30mph etc. But yes, if traffic is heavy, tucking in behind the semi's is definitely the safest option.
2. Not true re torque as it's directly related to hp. The increased torque does result in higher available hp at the peak torque rpm (and other rpms) and so your truck WILL move a little faster all else being equal.
About Travel Trailer Group
44,029 PostsLatest Activity: Jan 21, 2025