Forum Discussion
discovery4us
Nov 04, 2014Explorer
redguard wrote:Snomas wrote:
My 350 Cummins pulls a 4800# toad and I don't even feel it. I go over the rockies all the time and if that is not a test nothing is!!!
well I have a 450HP ISL 40 ft and loaded with my gear and towing a 3800LB toad and towing through BC,Washington and Oregon its no speed demon. I had a 350HP ISC and traded it off because of poor power
I seriously laugh at the guys with the 275HP 38 ft ISB and claim they do 45-50MPH up 6+7% grades. heck I can only go 48-52 with my 450HP ISL
apples to apples. Your 450HP ISL is probable in a 45,000 lbs. coach and the 275 ISB is more than likely in a 25,000 lbs. coach. Thus power to weight ratio we are pretty close.
I certainly hope that you will at least stop laughing long enough to wave as you pass me at a few MPH faster up the grades:B
About Motorhome Group
38,758 PostsLatest Activity: Nov 02, 2025