Originally Posted by
Riketsu
Thanks for that reply Grinder! Exactly what I was looking for!
So, going into more specific...
For a .12 engine... up to what relative humidity (50%, 60%, ..etc) should I start adding shims and in what increment? (0.05mm, 0.1mm)
Thanks!
I would go up .1mm from stock for 70% humidity or more. Sometimes I have gone up .2mm if it is very hot, and humid. This applies to .21 engines as well. The best thing to do is track test if possible to see what is working best for that day with your engine. If you can keep track of the weather data, you can get back to that correct setting easier in the future.