3sge (3rd gen) Octane? Options

[czwalga]

3rd gen 3sge does anyone know the recommended octane? Or most likely RON since it's not a US engine? I've been bashing my brains in trying to figure out this problem and refuse to go to another race with it. After about 30 hard miles 5k RPM.... the engine starts cutting out lower and lower in the RPM range until I cant rev over 4k RPMS.

I've been running 87 octane, i'm thinking the knock sensor could be detecting something and slowly pulling timing.




If this is the case i'm an idiot, and created a lot of headache for a stupid easy fix.... just sucks cause there's no easy way to test it.

This post has been edited by czwalga: Jan 31, 2013 - 8:10 AM

[Rusty]

firstly czwalga got your pm sorry for the late reply. 100RON or as close as you can get to it 98, or 95 if nothing else available. I forget what our rating works out to be on the US octane rating or whats the closest over there.

any chance of getting a video of when its happening?

when did you notice it started doing it? was it after some work you've done?

[czwalga]

firstly czwalga got your pm sorry for the late reply. 100RON or as close as you can get to it 98, or 95 if nothing else available. I forget what our rating works out to be on the US octane rating or whats the closest over there.

any chance of getting a video of when its happening?

when did you notice it started doing it? was it after some work you've done?

I may be able to get a video tonight. Problem with the video was that i wasnt trying to make it happen as i was racing, i would just shift as soon as I felt it starting to cut. So its proably not that noticeable on the audio.



I ran an event last january, it was fine. Car pretty much sat until june... in which it start happening the 2nd day. 1st day was only about 40 racing miles but it didnt happen the 1st day at all that I noticed. Happened on the 2nd day which was like 100 racing miles.