Am I being shnookered?

[lonerider560]

What do you think of this dyno? I am asking because I have never seen an A/F this straight. My question I guess is can the A/F graph be fudged?

[claydbal]

some folks tune for an afr like 13.2 across the board. im wondering tho, the tune didnt change,the lines look the same, but humidity changed and made more power. doesnt look like a tune as much as a comparison for how humidity changes power??

had you had the bike tuned previous to this?

[oh1deuce]

It looks straight because the 0 to 20 graph is so small. Some show a larger size with a lot more detail.

[MaineUltraClassic]

Originally Posted by lonerider560

What do you think of this dyno? I am asking because I have never seen an A/F this straight. My question I guess is can the A/F graph be fudged?

With the range set to 0-20, any line will look straight. Have him narrow the range down to 12-15, then you'll see how straight it looks.

That is an old trick............open the range to make the line look flat and people think the AFR is perfect.

Steve