Most reliable hp & torque for x15

[the missing link]

(03-31-2018 )Mikiisx09 Wrote:  I have Kenworth T 680 with X15. 525HP 1850Tq. Pulling Reefers on West Coast.There is no reason to go more then 525HP unless you pulling something really heavy.

I am running 525 and 1650, ( maybe a touch more then 1650, not buy much ) pulling 140,000 lbs on alot softer roads then alot of guys are used to . she does just for fine . ,I will also out pull a 600 down in low range if I want to . it's a 871.
It all depends on what you want and are comfortable with. It was not long ago we were pulling the same weight with 400//425 . there is no reason you can't , except for your ego .