Is there a way to speed up throttle response on my 07 nb w/ 4.8 its all stock.(for now).

 

Getting a good tune on the transmission will help a lot with what you might perceive as throttle response. They react slowly because stock transmission tunes take forever to shift. That could probably be perceived as lazy throttle response...

 

and the PE delay in the tune, if they still do that.

 

anything 06+ has horrible lag in the throttle body, 05 and 06 side by side is night and day difference if you watch them,ive been waiting on a fix since ive had my truck.

 

So do you tune the trans the way you do the engine tune?

 

I didn't know there was actually lag... Do you mean anything with the electronic throttle body? I believe GM switched over to the e-TBs around 05-06, not sure exactly when though.

 

a ported throttle body helps as well

 

My 04 is DBW and there isn't any perceivable amount of throttle lag. My truck is a manual too, so any lag would be more apparent I'd think since it isn't masked by the workings of an auto tranny.

Sometimes letting off the throttle causes the engine to hang a bit, but I think that is cause the truck isn't tuned yet and probably is some goofy parameter in the stock tune.

 

the lag is night and day comparing cable and wire, i hate the new trucks cause of the lag
dodges are the worst

 

I know the late 90s S10s had a RPM hang which made it impossible to motor down. Who knows how many other vehicles that function is in...

Funny how GM puts all this crap in and justify it too, but its just a nuisance for people who actually drive their vehicles...