Post by
deviousKA »
https://forums.nicoclub.com/deviouska-u9381.html
Thu Jun 30, 2005 6:45 am
You can gain a little performance NA by adjusting your base timing. KA24e stock base timing is 15 degrees, if your distributor is indexed properly you should be able to get a maximum of 18/19 degrees base by adjusting your distributor fully clockwise. With premium gas you should not get any detonation at all, and your idle will not be affected, and you will get an increase in performance all across the board.
Just for sohc reference, with ~10.5:1 CR you can go 18 degrees base with premium fuel and should not have any detonation. If your running stock compression ratio you should not have any problems at all. Thats what i used to run when i had the stock system on mine.
Currently with my sohc i am running ~22degrees timing at an idle of 1100rpm, with a very aggressive timing map across the board.
So in other words, grab your timing light, a 12mm tool, and go for it. Keep an keen ear when under low rpm high load conditions, as long as your exhaust is not extremely loud you should be able to hear any detonation.