|
By having the spark plug fire a couple of degrees sooner, you give the mixture more time to burn, thus burning more completely, thus releasing more energy, thus creating more power. One of the limiting factors in how much advance you can use is knock. This is one of the places octane comes into play. Lower octane fuels burn more quickly and limit the amount of advance you can dial in. But our motors are designed to run regular 87 octane, and since 17 degrees is within spec for the motor, you shouldn't need to go to higher octane, unless you've done something else to the motor like running higher compression.
from sr20de list.
__________________
1998 PRIMERA GX 10.1 CR Chile.
|