Need help interpreting Dyno AFR
#2
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I am sure people with more expertise will be on soon. But that does look good but might be a bit rich which is safer, normally as the load on the engine increases (boost goes up) then more fuel is added that is why the fraph dips like it does. If you have a graph showing boost the dip in AFR should be close to where the boost rises. Here's what mine was like last time on the rollers;
http://i41.photobucket.com/albums/e2...erfplotAFR.jpg
Good luck m8
http://i41.photobucket.com/albums/e2...erfplotAFR.jpg
Good luck m8
#3
Cheers - so the lower the number the richer the fuelling ?
Main reason for asking is I was about 10bhp down on the last time it was on the rollers, no changes to the car. The guy at the RR said it was running richer at the top end than before. Out of interest what would cause that to happen ?
Glad it's on the safer side though....means I can go ahead with a few little tweaks I have in mind and squeeze a bit more out
Thanks again - anymore help much appreciated..
Pete
Main reason for asking is I was about 10bhp down on the last time it was on the rollers, no changes to the car. The guy at the RR said it was running richer at the top end than before. Out of interest what would cause that to happen ?
Glad it's on the safer side though....means I can go ahead with a few little tweaks I have in mind and squeeze a bit more out
Thanks again - anymore help much appreciated..
Pete
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