[Spridgets] Octane Averaging

[corvallis at peoplepc.com]

http://en.wikipedia.org/wiki/Octane_rating
There'll be a test on Friday.
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-----Original Message-----
From: spridgets-bounces at autox.team.net
[mailto:spridgets-bounces at autox.team.net] On Behalf Of Mark J Bradakis
Sent: Tuesday, December 04, 2012 6:24 PM
To: Bob Spruck
Cc: spridgets at autox.team.net
Subject: Re: [Spridgets] Octane Averaging

Bob Spruck wrote:
> If I mix equal amounts of 110 and 100 octane race gas, will it average
> out to 105? 110 is too much, 100 is too little, 105 is just right in my
> 11:1 engine. Seems logical to me but I thought I better ask.
>
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Actually it isn't quite linear.  It would be more like 4 gallons of 100 
and 2 of 110
would do it.  I thought I had a reference handy, can't seem to find it.

mjb.
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