HP question on a Cummins 8.3
So our DP sold and we are shopping for our "upgrade". Engine size is one of the things we want to improve. I see the following in an ad: "THE 8.3 LITER CUMMINS 360 HP ENGINE HAS BEEN RE-RATED TO ...
Forum Discussion
If you want 425 HP, look for the 8.9L ISL. Without changing the injectors and the turbo a 8.3 is already pushing it's max at 360. In PU's much of the mileage increase by a chip is done by increasing the tire size in the computer... making it LOOK like you've gone more miles than actual.
