MSCAI vs AEMCAi air straighteners at different orientations??

[Trader]

Ok,

Why is Mazda using the air straighteners at a different orientation than the AEM instructions. They are the exact same intake except for the filter?

The Mazda has the straighteners so they are not parallel with the MAF sensor. The AEM shows them parallel.

I noticed when the straighteners were not parallel the STFT and LTFT would be alot more random and give non consistant readings. When I switched to having them parallel it helped. Although my LTFT are still high +7 to +10.

MSCAI & AEM instructions below

 

[Silver Ecstasy]

Have you tried resetting the ECU between each change and taking her easy for the first couple hundred miles between changing the straighteners?

 

[Trader]

Have you tried resetting the ECU between each change and taking her easy for the first couple hundred miles between changing the straighteners?

YES

 

[Silver Ecstasy]

OK, well I can't imagine why they set this orientation up the way they did, and none of us are certified Mazda technicians either. So..whatever answer you're looking for won't be found on here, other than a lot of uneducated speculation.

 

[Trader]

I guess I am curious to see what other peoples experiences are with the straighteners in different orientations. I assume I am not the only one that followed Mazda's instructions and installed the straighteners skewed.

 

[Silver Ecstasy]

I also installed them per MS's instructions. I haven't had any issues so far.

 

[Trader]

I also installed them per MS's instructions. I haven't had any issues so far.

So you have them skewed? Are your fuel trims stable? I had better luck with them straight.

 

[Mid_Life_Crisis]

Here's some of that uneducated speculation.
That sensor is not just detecting air quantity. It also has a temp sensor in there. Any object with air blowing across it tends to cool. Is it possible that this leads to inaccurate temp readings and the unit is deliberately skewed to put vanes in a position to block direct airflow across the thermal probe, thereby limiting that effect while still creating a smoother general airflow?