fordsareslow Posted January 24, 2007 Report Share Posted January 24, 2007 What is everyone seeing in their IAT's in the cold weather? When the weather was in the upper 20's last week, I was seeing mid-low 50* IAT's even with the motor warm. Also, has anyone adjusted thier tune for the cold weather? When I was loging a run with HPT I was seeing 9*KR at WOT. Quote Link to comment Share on other sites More sharing options...
Holty Posted January 24, 2007 Report Share Posted January 24, 2007 i'm seeing approx 60*IAT's with ambient temp at approx 30* no tune changes for weather Quote Link to comment Share on other sites More sharing options...
.justin. Posted January 24, 2007 Report Share Posted January 24, 2007 What is everyone seeing in their IAT's in the cold weather? When the weather was in the upper 20's last week, I was seeing mid-low 50* IAT's even with the motor warm. Also, has anyone adjusted thier tune for the cold weather? When I was loging a run with HPT I was seeing 9*KR at WOT. 9* of KR is definitely NOT good. Do you knock like that in warmer weather? What AFR were you at when this occured? Quote Link to comment Share on other sites More sharing options...
fordsareslow Posted January 24, 2007 Author Report Share Posted January 24, 2007 No, I don't get any KR in warmer weather. I haven't hooked up my wideband yet so I'm not sure of the AFR. I'm going to try to get it installed this weekend. Quote Link to comment Share on other sites More sharing options...
Black2003SS Posted January 24, 2007 Report Share Posted January 24, 2007 What injector duty cycle nwo compared to summer weather? Colder air = more air going in which means more fuel required (I'm sure you know this). If you were tapped out on injector in warm weather, you may be lacking fuel now. Although, I would guess that the change should only maybe effect it with 2-3* KR, not 9...your problem could something else altogether. Fuel pressure ok? Quote Link to comment Share on other sites More sharing options...
Krambo Posted January 24, 2007 Report Share Posted January 24, 2007 I see a difference with the oxygenated fuels in the winter and the 10% ethanol blends. It drives me nuts actually but I have not adjusted my fueling to compensate. I fill up a different stations and all are different. Quote Link to comment Share on other sites More sharing options...
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