S/C owners: collecting information

[LtNoogie]

KK, have you tried a tankful without the addditive? I believe that Yaris T-sport mentioned that he was able to stop using the octane booster. I don't understand why other than maybe the ECU was able to learn and adjust. Doesn't make sense to me.

[kurokoma-kun]

Originally Posted by LtNoogie

KK, have you tried a tankful without the addditive? I believe that Yaris T-sport mentioned that he was able to stop using the octane booster. I don't understand why other than maybe the ECU was able to learn and adjust. Doesn't make sense to me.

Yeah, I saw T-sport's comments and tried a tank without additive last week but the knocking returned.

It runs so well with the octane booster I almost don't mind the added expense, but seeing what others have said about the long-term effect on spark plugs does concern me.

[kurokoma-kun]

My ignition timing:
at idle ~5
out of boost ~30 (AFR 14s-15s)
under low boost ~15 (AFR 14s-15s)
at wot ~10, rarely + briefly single digits (AFR 11s-12s)

Originally Posted by camelll

KK do you have shell gas stations with 93? I have used that multiple tanks without octane booster and no knocking. I cannot get bp 93 as they don't have it here but bp 91 knocks like crazy without octane booster.

Well, BP near me are calling what they have 93 octane though sometimes I suspect we are all getting crap gas! Seems like lately I've read more posts about stalling and poor performance in other parts of the board than ever before. Hell I dunno </conspiracy theory> Annnnyway, have not tried Shell, I'll have to see if I can find it!

[PETERPOOP]

Originally Posted by kurokoma-kun

My ignition timing:
at idle ~5
out of boost ~30 (AFR 14s-15s)
under low boost ~15 (AFR 14s-15s)
at wot ~10, rarely + briefly single digits (AFR 11s-12s)

Originally Posted by camelll

I see single digits on timing anytime under boost regardless of a/f ratio. The only time I see above single digits is out of boost. If I am above single digits during boost it is real low teens. Out of boost and normal driving I see 30's + on timing and without boost getting on it I see high teens to low 20's.

Max boost is 8.

my IGN is 17 under WOT with AFR of 13-14
my IGN is 25-30 w/ NO boost & normal driving w/ AFR of 14.5-15.1
My IGN is 15 when under low boost and AFR is 14.5-15.1
My IGN is 5 when coasting/neutral with AFR of 15

*All of my numbers of IGN and AFR seem to match with your guys, besides my IGN under WOT. I am seeing 17 IGN timing and not the low teens like you guys..

Is that safe? Is that why I am generating "more" power?

Here's a link to a thread I made about it last night with a video clip of my gauge readings from above..

http://yarisworld.com/forums/showthread.php?t=16720