zoomerang2
Member
- :
- 2012 Madza2 Touring
Well, that makes sense... my limited experience is with a wideband in the downpipe...A delay of approx 500 RPM is typical for a tailpipe sniffer AFR probe. Put it in the header and you'll get closer to 1:1.
You can really chase your tail if you go strictly by the RPM on the tailpipe probe when tuning. Have to account for the delay for the gases to make it out all the way out the tailpipe.
But it does revive the question of why the change happens at such different speeds in the two different runs. Could it be related to which gear the runs were done in? I would have assumed the two runs were done in the same gear though.