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From: notes@isucs1.UUCP
Newsgroups: net.auto
Subject: Re: octane
Message-ID: <309@isucs1.UUCP>
Date: Sun, 17-Mar-85 02:00:14 EST
Article-I.D.: isucs1.309
Posted: Sun Mar 17 02:00:14 1985
Date-Received: Thu, 21-Mar-85 04:32:34 EST
Sender: notes@isucs1.UUCP
Organization: Iowa State University
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Nf-ID: #R:ucla-cs:-417100:isucs1:3100020:000:841
Nf-From: isucs1!drew    Mar 16 15:42:00 1985



   That "ping ping" you here is called detonation. If it continues for very
long, it will blow the ring lands right off your pistons. There are several
ways to prevent this. First, you could take it to a qualified auto mech and 
have him retard the timing. Second, you could start paying for the kind of
gas the engine needs. Or, you could lower the compression ratio in your en-
gine. This can be done by changing the pisons (if you can find them) to those
that give you less compression, or, I have heard that putting two head gaskets
on each head will lower the compression ratio. I have never tried this but
I suppose it would work.

   There is also water/methenol injection, the water is vaporized into the
the air/fule mixture where it raises the flash point thus preventing deton-
ation.


                                   Drew