Ok, this is my 2nd kitty and 1st C15 motor.
It is a 2005 Model with twin turbo and 435hp (motor rated to 466)
My issue is this thing is a POOCH!!!!
It wont climb and damn hill worth a sh*t with only 32K in the box. I thought it might be it needed a new fuel filter so I had Petro do a PM on it, but still no change.
I have an appointment at my local CAT dealer to have it put on the dyno to see whats up since it's still under warranty......
Anyone else have this problem or know if this is common on these engines?
My other is a 1989 Model Mechanical and it's built quite heavily, but I still think this truck should get up and go... i mean at 32K in the box it takes me about 1/2 mile to 3/4mile to get it up to 60mph from a roll on an on-ramp.
Also, I have though maybe the rear ratio and final drive ratio might have something to do with it??
3.36 rears and a 0.90 final drive in 10th.....
Also, this truck is averaging about 5.8-6.2mpg I might as well be driving the Pete at this point.