RedWS6 00

As the title says, I removed the baffles today. Previous WOT runs I was about 12.9 - 13.1. Today I'm at 11.9-12.1. No PCM changes were done. If the AFR got a little leaner I could expect, but getting richer, has got me baffled (excuse the pun)

Would any one expect it to get richer? and why? just trying to get an understanding.

My MAF is reading about the same. 27lb/min @ 4400rpm. infact pretty much the same in second gear.

IAT Temperatures are about the same.

Tripintaz

is your Cat Overtemp disabled?

RedWS6 00

Yes it is, running no cats so I disabled the over temp.

Tripintaz

i would try to recalibrate the O2 sensor. Dont think there is anyway a change to ram air would effect AFR that much or if any at all. is your maf sealed good?

RedWS6 00

One thing I noticed is that at WOT the LTFT's read +6. But looking at the whole LTFT logged map nothing is about +1 or below -1. Everything is pretty much spot on.
Perhaps it was just an oddity on that run, will do another run shortly and see if my AFR is back to 13:1 or still near 12:1.
In the past since my last change it has been running 12.8 to 13.1 at WOT constantly, no drift. As soon as I remove the baffles it dropped. If you use 13 AFR and work out the +6 Fuel trim you get 12.22 which is pretty close to what I'm seeing on the wideband. I think I need to find out why my fuel trim went to +6 at WOT when all other cells are very near zero.