Increasing HorsePower -- What You Need To Know

[adam1215]

(08-07-2017 )Rawze Wrote:  

(08-07-2017 )adam1215 Wrote:  If I manage to turn this engine up will it be worth it? The problem I have is as soon as I start pulling hills with a load on (53,000lbs) usually I just get my a** handed to me with lack of power and fuel economy I go from the mid 7's to mid 5's. Will turning it up make that big of a difference? Will it help with fuel economy in the hills? Will break anything? The truck has 815,000 miles on it now. It has had the cams redone at 600,000 and rod and main bearings done around 30,000 miles ago a new turbo and the overhead has been every 150,000 miles since 305,000 miles

Maybe you should be looking at rear ratio instead?. Are you geared tall?. Mine is set at 450hp does just fine at 80,000 lbs and 3.55 rears on a 10 speed. I want longevity, not glory in how fast I get up a steep incline. No money in that. I'll take money over ego any day of the week.

I've thought about rear ratio too. I have 3:55 with a 13 speed someone I know suggested going to a 2:79 but I think that is too high of a ratio. I only run between 58 and 62 mph. I was just wondering if increasing horsepower and torque would have any great benefit or not. I will probably just leave it alone for now