delete

 

 

If no changes in the tune, the cold air will lean your mix. Colder air means more performance when tuned correctly.

 

its a bone stock ls turbo on 8psi tuned by Rated R

 

A engine will always preform better with colder air. Colder air = higher density, basically meaning for every set amount of air the oxygen contents is higher in the colder air (as the molecules are closer together). Generally speaking you heat something up it expands. You cool something down it contracts.

 

^+1

 

The colder the temp, the more air your turbo is pushing as rich7777 said, the air is more dense. You'll see a difference in power if you dyno your car mid-afternoon as opposed to early morning, later evening cause the air's denser.

 

yea but tires dont like to hook up as much on cold streets..


i wouldnt be surprised if you see your afr lean out a few tenths, for your setup as long as it stays below 12.5 or so i think you are good

 

your IAT correction should aid in the fuel correction if set right.