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Date:         Wed, 16 Sep 2009 00:45:56 -0400
Reply-To:     Kim Brennan <kimbrennan@MAC.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Kim Brennan <kimbrennan@MAC.COM>
Subject:      Re: 2.1 heads
Comments: To: Ian Allan <ian.allan@BMTS.COM>
In-Reply-To:  <CBB1C252-FB50-4C82-8533-80C77A61E7AF@bmts.com>
Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes


Detonation is caused by having too volatile fuel. Your friend would
need to go to a higher octane fuel (higher octane fuel resists
detonation.) If he is still having issues and is already using a
premium fuel, then something else is the issue.




On Sep 15, 2009, at 11:04 PM, Ian Allan wrote:


> I have a friend who purchased a van with a Go Westy 2.4 engine. The
> engine has suffered from detonation issues among other things. Any
> ideas as to practical machining processes to REDUCE the compression
> ratio?
>
> Ian
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