1/2 Ton Suburban in steep grades with TT
I've read a bunch of different posts in several forums about towing with a 1/2 ton Suburban and how it will struggle on steep grades and that you should really have a 3/4 ton. Here's my situation:...
Forum Discussion
A 6% grade, assuming 15000 how, with 90 sq ft of frontal area will require about 135hp on a level. Then additional 40 hp per 1% grade. So 6x40= 240 +135= 375hp to go 60 mph. Now add in 7000 feet of election , you need another 15-20% of sea level hp, so over 400 hp to go 60mph at elevation at that weight and frontal area. Does the op have 400+hp to go 60 mph. Probably not. Not sure an 8 lug right with a diesel has the 375 hp for the most part......
As someone said, plan on going30-40 mph, in the right lane, in 2 nd gear, or what ever gear is below direct. Enjoy the climb.
Oh 7% grades are steep for an Ioverstate, but here in the greater Seattle area. I've gone up local roads that are in the low to mid20% range. Those are fun no matter the hp, unless you have the proper LOW gears between Axel and mostly tranny 1st gear is important.
Marty
As someone said, plan on going30-40 mph, in the right lane, in 2 nd gear, or what ever gear is below direct. Enjoy the climb.
Oh 7% grades are steep for an Ioverstate, but here in the greater Seattle area. I've gone up local roads that are in the low to mid20% range. Those are fun no matter the hp, unless you have the proper LOW gears between Axel and mostly tranny 1st gear is important.
Marty
