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Blown86 Regular Location: Perth Registered: July 2002	Re: Ethanol fuel and turbo engines... Tue, 25 October 2005 14:47 kingmick wrote on Mon, 24 October 2005 07:00 ment to add for the ones out there that think avgas kills o2 sensors and fouls plugs.do you think us race guys are going to risk $80-120k engines on avgas if it suffed o2 sensors and fouled plugs.on a 2.3litre turbo v6 making well over 800hp{circuit racing} and using 1800cc injectors i have never fouled a plug or lost an o2 sensor,or have i on the chev's etc etc. with a carby yes but not injected. avgas stuffs cat converters. The discussion is about using avgas on the street. The operating parameters of a mega dollar race motor and the average high peformance motor used on the street are completely different!! It's a well documented fact that lead in fuel stuffs oxygen sensors as used in road cars. Normally the oxygen sensor slowly dies due to a gradual build up of lead on the sensor. That can be a catch because the sensor slowly degrades and supplies erroneous readings whilst appearing to work properly. IIRC an example is using avgas with the standard Toyota type oxygen sensor you'll stuff the sensor in around 50 hours running. I've seen this more than once. You can buy a lead tolerant sensor from Bosch for big dollars and other 'almost' lead tolerant sensors. Of course lead fouls plugs! Once again, it may not be as common in a race motor running WOT most of the time as it is in a street motor. Fouling usually occurs when idling a lot and/or running rich. I've seen it happen on race motors, street motors and in aircraft many many times. Things have improved a bit since they brought out 100LL avgas, I believe they cut the lead content by about 60% compared to the old avgas 100/130. [Report message to a moderator]

	Subject	Poster	Date
	Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 08:12
	Re: Ethanol fuel and turbo engines...	oldcorollas	Sun, 23 October 2005 08:22
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 08:58
	Re: Ethanol fuel and turbo engines...	oldcorollas	Sun, 23 October 2005 09:02
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 09:31
	Re: Ethanol fuel and turbo engines...	Big Rob	Sun, 23 October 2005 09:22
	Re: Ethanol fuel and turbo engines...	kingmick	Sun, 23 October 2005 09:43
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 09:52
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 10:05
	Re: Ethanol fuel and turbo engines...	oldcorollas	Sun, 23 October 2005 10:12
	Re: Ethanol fuel and turbo engines...	jeffro RA28	Sun, 23 October 2005 09:47
	Re: Ethanol fuel and turbo engines...	jeffro RA28	Sun, 23 October 2005 09:56
	Re: Ethanol fuel and turbo engines...	kingmick	Sun, 23 October 2005 09:57
	Re: Ethanol fuel and turbo engines...	hurricane	Sun, 23 October 2005 10:05
	Re: Ethanol fuel and turbo engines...	kingmick	Sun, 23 October 2005 10:05
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 10:15
	Re: Ethanol fuel and turbo engines...	jeffro RA28	Sun, 23 October 2005 10:12
	Re: Ethanol fuel and turbo engines...	oldcorollas	Sun, 23 October 2005 10:16
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 10:19
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 10:25
	Re: Ethanol fuel and turbo engines...	jeffro RA28	Sun, 23 October 2005 10:19
	Re: Ethanol fuel and turbo engines...	jeffro RA28	Sun, 23 October 2005 10:32
	Re: Ethanol fuel and turbo engines...	love ke70	Sun, 23 October 2005 10:45
	Re: Ethanol fuel and turbo engines...	jeffro RA28	Sun, 23 October 2005 11:29
	Re: Ethanol fuel and turbo engines...	love ke70	Sun, 23 October 2005 11:33
	Re: Ethanol fuel and turbo engines...	billmchenry	Sun, 23 October 2005 10:46
	Re: Ethanol fuel and turbo engines...	Big Rob	Sun, 23 October 2005 12:30
	Re: Ethanol fuel and turbo engines...	thechuckster	Sun, 23 October 2005 13:36
	Re: Ethanol fuel and turbo engines...	Blown86	Sun, 23 October 2005 13:40
	Re: Ethanol fuel and turbo engines...	kingmick	Sun, 23 October 2005 21:55
	Re: Ethanol fuel and turbo engines...	hurricane	Sun, 23 October 2005 22:49
	Re: Ethanol fuel and turbo engines...	kingmick	Sun, 23 October 2005 23:00
	Re: Ethanol fuel and turbo engines...	Blown86	Tue, 25 October 2005 14:47
	Re: Ethanol fuel and turbo engines...	jeffro RA28	Mon, 24 October 2005 11:30
	Re: Ethanol fuel and turbo engines...	hurricane	Tue, 25 October 2005 22:22
	Re: Ethanol fuel and turbo engines...	RAV-GT4	Wed, 26 October 2005 04:07
	Re: Ethanol fuel and turbo engines...	kingmick	Wed, 26 October 2005 10:48
	Re: Ethanol fuel and turbo engines...	Blown86	Wed, 26 October 2005 15:01
	Re: Ethanol fuel and turbo engines...	sxr01r	Thu, 27 October 2005 13:18
	Re: Ethanol fuel and turbo engines...	oldcorollas	Thu, 27 October 2005 13:25
	Re: Ethanol fuel and turbo engines...	oldcorollas	Thu, 27 October 2005 13:29
	Re: Ethanol fuel and turbo engines...	oldcorollas	Thu, 27 October 2005 13:31

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