I'm generally pretty gentle on the accelerator, but with that in mind the truck seems a bit sluggish. My '08 2500 4x4 QC also seems noticeably less punchy than the '07 1500 4x4 QC (that was an expensive miscalculation/mistake). Granted, the 2500 is a few hundred pounds heavier and has larger/wider tires.

However.... I've been surprised a few times getting a little more aggressive with the throttle. Not WOT, and maybe not even 50%, but if I'm "less gentle" on the gas, there's a dramatic jump in seat-of-the-pants power. Even more interesting is that I think I get better gas mileage when I don't baby it (city driving).

Is the throttle so disconnected (mechanically) from the rest of the fuel system that the computer makes that big of an impact?

Or... is this all a figment of my imagination?

 

the throttle does adjust to your habits and will increase or decrease the sensitivity depending on how you drive. This takes a good long drive though for it to change. I hate the by-wire pedal. The delay bothers me so much.

 

a CAI and tune will make your throttle repsonse so much better

 

Like you said, weight is a killer especially unsprung weight...that's why your 2500 seems sluggish.


Sounds like you're giving it enough throttle to kick out of overdrive...that and you're giving it more throttle would explain the increased SOTP feel .

 

I have noticed the same thing on mine too...if im already rolling and then accelerate sometimes, it kinda takes off unexpectedly. It just happens at random though for me.

 

yeah your 2500 weighs 1000lbs more then a 1/2

 

Hrm. I seem to remember there only being a 400-500lb difference when I had both on the scales (empty from dropping stuff off at a landfill). 1,000 would more explain the sluggishness. However, my memory sucks.

 

What I am wondering is if any of the aftermarket tuners will make the throttle apply quicker. The throttle application sucks in stock form...castrates a lot of motor.

 

The decellerate lag will get you killed...