hey how are you guys doing, my question is are there any 2005 4.8 underdrive pulleys out there for my truck and what would be the pros/cons of getting them. also if i bypassed my ac altogether would there be a big hp or tourque diff? please help me out,

 

i'm taking off the a/c belt if i go to the track this weekend. i'll post up my results

 

AC draw pretty much no HP if its not on, it's free spinning, basically like tuning an idler pulley.

 

The a/c pulley free spinning has almost no drag. If you made a run with it on and then one with it off you may see an increase but it won't be from the belt being removed. It will be from the loss in weight due to burning 2 quarts of gas making a pass and coming back down the return road.

 

ok mr. experts...

 

If you don't belive me, pull the belt and give the pully a spin. That will be how much drag there is on the motor, even is the AC is turned on, cuz the pcm unlocks the AC cluch at WOT no matter what.

 

Did not know that...nice to know.

 

yeah, i've figured it out by now. just being sarcastic. lighten up man have a

 

yea I didn't notice anything with mine removed. My belt was cracked when I did the cam swap so I just left it off, but I will put it back on when I put in my new motor.