timing vs a/f ratio

[rtviper]

I am making decent power in the rpm range I will use at the track with an a/f ratio of about 11.2. The timing is only 18 degrees in this range. If I want to add timing with the c16 will I need to revamp the a/f also. Should I only do it at the track a degree at a time and then make a pass or can I add 4 or 5 degrees and then make a pass using the same lbs of boost I used at 18 degrees and 11.2 a/f? I have a fast and no egt Thanks

 

[Louie L.]

If you make small changes in timing you will easily see how it effects the AF ratio. The AF ratio changes will not be drastic, but only then you will see if changes to the AF need to be made.

 

[bruce]

can I add 4 or 5 degrees and then make a pass using the same lbs of boost I used at 18 degrees and 11.2 a/f?

I go in 2d increments, and with a plug reading in addition to the data logging, for every change.