HP Increase

[Lonestar10]

ISX safely 400-600HP 1500-2050 torque for on-road applications anything above the needed HP/TQ to do the job you want the truck to do is a decrease in the lifetime in the engine.

could a 600HP/2050TQ last as long as a 450/1750 well yes it depends on how often that 2050tq is used to move the vehicle and how often that torque happens in lower rpms.

im sure if you asked the big guy he would say he could make a 450HP engine last just as long as a 600HP because he knows exactly how and when to use those power levels.

if you just set the cruise and roll the 450 should outlast a 600 day after day.

my T680 is set at 450/1750 and it does everything i ask of it in the 80,000 gross weight class. i dont need to be the first accross the intersection nor to the top of the hill.