IAT JB4 Tune temps

[StingerAsshley]

Hey everybody I have a quick questions so I recently had an issue where launch control on Map 2 started to give a jerky feeling when shifting from 1st to 2nd gear and lose power. Is something wrong with my transmission perhaps? On my stinger I have Injen intakes, MBRP catbacks, & jb4 fuel wires. I also had another question as to the AIT temperature Vs. ambient temp. Jb4 app read: ambient was 63F & AIT was around 100+ is this bad?

 

[Spaceme17]

Hey everybody I have a quick questions so I recently had an issue where launch control on Map 2 started to give a jerky feeling when shifting from 1st to 2nd gear and lose power. Is something wrong with my transmission perhaps? On my stinger I have Injen intakes, MBRP catbacks, & jb4 fuel wires. I also had another question as to the AIT temperature Vs. ambient temp. Jb4 app read: ambient was 63F & AIT was around 100+ is this bad?

Can't help you with the JB4 questions. You should post this along with more detail in the JB4 Tuning sub forum.

As to ambient temps versus intake air temps (IAT's) you are seeing, this is normal for a turbo (or supercharged car). Compressing air causes it to heat up. Compress it more, it heats more. And you are running more boost using the JB4 so the charge air will heat up more. If you want more consistency and lower IAT's you will need to upgrade your intercooler. Going from 63F to 100F is not too bad. Lots of factory boosted cars will go much higher on IAT's (150 or 160 or higher). The main problem is that the ECM will pull timing and/or limit boost so you lose power.

As an example, I had a 2013 Ford Focus ST. On factory intercooler and boost, the IAT's would approach 160 on a full throttle acceleration. I later upgraded to an aftermarket intercooler and after that (and with higher boost levels) the IAT's never got above 100 and power was more consistent.

 

[Terry@BMS]

IAT is going to vary based on how long the car has been sitting idling and how warm things are.

 

[Kato_the_kia_stinger]

And WMI fixes this! Lol