Cold weather-my a/f leans out too

[CHEVROLADE]

I Have No Idea What My A/f Ratio Is??i Guess Its Perfect Cause Its Still Runnin Strong.

[farmtruc]

I Have No Idea What My A/f Ratio Is??i Guess Its Perfect Cause Its Still Runnin Strong.

You guys that don't check it scare me lol! Get it checked.

[Sleaper]

Of course this afternoon with the warmer temps and running straight meth, my AFR runs back down into the mid 10's! I guess that's better than the alternative!!

[PurpleMinivan]

Ahhhh.... maybe someday i can get SD tuned.?.?.

[GasGuzzler]

Funny how people ignored me when I said cooler air is denser...LOL

I'm denser at night than at noon.

Hahahaha

[Sleaper]

I didn't ingnore you. I agree that colder air is denser, but I didn't have this problem when I first switched over to the SD tune. It was only after I had it retuned for meth that the colder weather caused it to lean out. Not to mention, it doesn't lean out the entire time. It starts off ok then spikes to high 11's low 12's and then comes back down to mid 11's after a second or two. Just seems kinda weird. I have no doubt that you know your s**t!

[GasGuzzler]

Hahaha

Doubt, please, doubt.

LOL

[ducky]

You just wanna come down for a retune, lol.

I did a couple this evening even thoguh its not too cold out and it stayed right you put it the first time. 11.2ish. But ill be down in dec to get a retune and talk to you about that custom grind cam we need to get on order asap. My truck is already boring me..

[-HIC-]

Of course this afternoon with the warmer temps and running straight meth, my AFR runs back down into the mid 10's! I guess that's better than the alternative!!

Actually this is not really true. Running to rich can cause cylinder wash then comes ring damage.
B

[ducky]

Actually this is not really true. Running to rich can cause cylinder wash then comes ring damage.
B

lol the alternative being leaning out an going kaboom