Calgary - random talk thread
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From: a
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From: Calgary, Alberta
nope, I didn't notice it;
I wouldn't say it's not worth the time;
when you're pushing a boosted car, and you're going to regularly run a gasoline that is vastly different from what it was set up for then yes;
but with small changes (as in ALL the canadian pump gas), your ECM does already compensate for the small variation in octane rating.
87-89-91-94
as I've understood it so far, a naturally aspirated (<10:1 compression) engine simply doesn't make enough heat to worry about knock, or the ECM's ability to compensate in pump gasoline differences.
now with boosted engines you can quickly make too much heat for lower octane gasoline - which in turn necessitates a "minimum" octane gasoline to use;
with respect to E85 (85% ethanol, 15% gasoline) the fuel tables need to be vastly changed from that of regular gas - you need to run much richer with the E85 ~ which could be out of spec for the CC rating, and available duty cycle of the injector used.
does that sound sensible?
I wouldn't say it's not worth the time;
when you're pushing a boosted car, and you're going to regularly run a gasoline that is vastly different from what it was set up for then yes;
but with small changes (as in ALL the canadian pump gas), your ECM does already compensate for the small variation in octane rating.
87-89-91-94
as I've understood it so far, a naturally aspirated (<10:1 compression) engine simply doesn't make enough heat to worry about knock, or the ECM's ability to compensate in pump gasoline differences.
now with boosted engines you can quickly make too much heat for lower octane gasoline - which in turn necessitates a "minimum" octane gasoline to use;
with respect to E85 (85% ethanol, 15% gasoline) the fuel tables need to be vastly changed from that of regular gas - you need to run much richer with the E85 ~ which could be out of spec for the CC rating, and available duty cycle of the injector used.
does that sound sensible?
and we all know how well i took care of my car. the 2.4's are very picky motors.
i'll tell you one thing. i had to run 2 differen't gas octane depending on the time of year. winter time i couldn't run 91 because it would misfire, but on 87 it would run perfectly fine. summer time 87 it would misfire but on 91 it would run fine.
and we all know how well i took care of my car. the 2.4's are very picky motors.
and we all know how well i took care of my car. the 2.4's are very picky motors.
as to 87 seeming to misfire in summer versus winter - I'm guessing the anti-freeze additives added during winter solved your issue, but it came right back when the additive was removed for "summer blend" gas...
knocking on 91, simply makes no sense to me...
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From: Calgary, Alberta
I would suspect there was something specific to your car - they are engineered to run fine on either gas year round;
as to 87 seeming to misfire in summer versus winter - I'm guessing the anti-freeze additives added during winter solved your issue, but it came right back when the additive was removed for "summer blend" gas...
knocking on 91, simply makes no sense to me...
as to 87 seeming to misfire in summer versus winter - I'm guessing the anti-freeze additives added during winter solved your issue, but it came right back when the additive was removed for "summer blend" gas...
knocking on 91, simply makes no sense to me...
all i know is what happened and what fixed it
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lol im so glad you all ghey.......... makes for interesting reads.......
steve this is what cowboys do when they think someone is ghey.....
Cowboy Way ( Big Cheif ) - YouTube
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steve this is what cowboys do when they think someone is ghey.....
Cowboy Way ( Big Cheif ) - YouTube
subsitute pale face naked woman for light in the loafers steve after a couple of drinks........
Thread Starter
Senior Member
Joined: 02-21-07
Posts: 16,180
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From: Calgary, Alberta
Thread Starter
Senior Member
Joined: 02-21-07
Posts: 16,180
Likes: 1
From: Calgary, Alberta