engine pinging
Intermediate
Joined: Feb 2014
Posts: 33
Likes: 0
From: Iowa
Not to hijack but since we are talking fuel as the result of ping... Ethanol bumps the octane so it that the correct choice High Octane with Ethonol or a lower octane without ethonol...
Also ?? on the low end... when I try to jump back on the gash when in to high of a gear when slowing down I get some ping and clanks etc... it that what you are refering two?
Also ?? on the low end... when I try to jump back on the gash when in to high of a gear when slowing down I get some ping and clanks etc... it that what you are refering two?
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
octane rating is octane rating- whether lead, ethanol or whichever additive packages current or past.
wikipedia will be a better source if you want to read up- but octane does not mean "more power" higher octane allows the motor to be tuned for more power- allowing more advanced ignition timing and/ or higher compression ratios than otherwise.
octane is the ability of the fuel to resist combustion from compression ( like a diesel ) and better controlled burn rate in the combustion chamber
mike
wikipedia will be a better source if you want to read up- but octane does not mean "more power" higher octane allows the motor to be tuned for more power- allowing more advanced ignition timing and/ or higher compression ratios than otherwise.
octane is the ability of the fuel to resist combustion from compression ( like a diesel ) and better controlled burn rate in the combustion chamber
mike
Last edited by mkguitar; Jun 9, 2014 at 02:34 PM.
Tourer
Joined: Apr 2013
Posts: 310
Likes: 1
From: Arizona
My shark seems to have a little ping to her ever since I switched to AMS oil from Mobile 1. My plugs are mocha though. AZ only has 91 octane and I have tried Lucas booster and no change.
Last edited by Trak350; Jun 9, 2014 at 03:33 PM.
Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
Ethanol adds octane and burns cooler....It's not the cause of your detonation. It's warmer out, which means the engine's running hotter. OP's bike is a 2005, and I'd bet he's got some crud in his combustion chambers (as a 9 year old bike will have) that's effectively bumped his compression ratio.
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Outstanding HDF Member
Joined: Jan 2007
Posts: 2,598
Likes: 19
From: Naples FL / Pine TWP PA
Not to hijack but since we are talking fuel as the result of ping... Ethanol bumps the octane so it that the correct choice High Octane with Ethonol or a lower octane without ethonol...
Also ?? on the low end... when I try to jump back on the gash when in to high of a gear when slowing down I get some ping and clanks etc... it that what you are refering two?
Also ?? on the low end... when I try to jump back on the gash when in to high of a gear when slowing down I get some ping and clanks etc... it that what you are refering two?
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Road Master
Joined: May 2009
Posts: 992
Likes: 2
From: TN
octane rating is octane rating- whether lead, ethanol or whichever additive packages current or past.
wikipedia will be a better source if you want to read up- but octane does not mean "more power" higher octane allows the motor to be tuned for more power- allowing more advanced ignition timing and/ or higher compression ratios than otherwise.
octane is the ability of the fuel to resist combustion from compression ( like a diesel ) and better controlled burn rate in the combustion chamber
mike
wikipedia will be a better source if you want to read up- but octane does not mean "more power" higher octane allows the motor to be tuned for more power- allowing more advanced ignition timing and/ or higher compression ratios than otherwise.
octane is the ability of the fuel to resist combustion from compression ( like a diesel ) and better controlled burn rate in the combustion chamber
mike