Manifold cylinder filling compensation through valve adjustment

[CTRLFRK]

Manifold cylinder filling compensation through valve adjustment.

hondata excerpt.png

Has anyone tried compensating for the greater filling of cylinder 2 and 3 by adjusting the valve clearance on the intake side to help average the air that all cylinders see?

An example would be
Cylinder 1 and 4 would be .25mm,
Cylinder 2 would be .21mm
Cylinder 3 would be .23mm

Would this help all cylinders get consistent filling?

[Hondata]

No, don't set the valve lash to anything other than factory specifications. The changes you have will not make much difference to cylinder filling.

I would reduce the ignition timing slightly on those cylinders. What knock counts do you get over what time period, and what is the knock control?

[CTRLFRK]

I am not getting any knock counts. That was an excerpt from your help file. My suggested valve clearances were still within the suggested range from Honda. I did however have my logic reversed for the cylinders, flip what I said for Cylinder 1/4 and 2/3. My objective was to get as consistent afr between all cylinders as possible. It was just an idea to achieve a little greater accuracy.