I think I am having iat enrichment issues. I used Aaron cakes write up and basemap with the GM Iat. Been dialing in the car in the evenings and late at night while it's still around 80* outside. This morning was the first cool morning I've had. At normal crusing I am way richer then where I've been dialing too and into boost I'm dropping down into the low 10s at 5lbs. Anyone have a known good iat enrichment curve I can look at? Or any input?

 

If your fuel injector characteristics (deadtime, voltage error) are wrong, this will cause strange problems like this. You can have it tuned perfectly at one temperature but it will go rich when cold or lean when hot, or vice-versa. This is because the IAT multiplier only affects the pulsewidth minus the deadtime, which should be the "true" pulsewidth if everything is correct.

Half the reason to buy Injector Dynamics injectors is for the injector data, so you don't chase your tail trying to fix issues that end up being having the injector characteristics wrong.

The IAT curve is based on density changes with temperature, not enrichment with temperature.

 

Thanks for that. I have since reached out to Deatschwerks to see if I can get the information I need from them on my injectors.