How to find the right octane

[abmi0000]

im not saying that a 13:1 engine will need less octane than a 10.5:1 but it just might depending on the dynamic compression and how the engine is setup... static compression ratio is just one indicator...

this kind of makes my point though because this shiz gets complicated fast... so the easiest way is just to monitor fuel consumption

Difficult to drive consistantly through a number of tanks since there is no telling how many taxis will be using the road at the same time as I do :=):

 

[moranor@axis]

well its the only simple way i can think of doing it testing over more tanks and taking an average with a certain boost should eliminate the taxi problem and give you more consistent readings...