good question....
i'm about to put my l20b stroker back together.......
estimated compression ratio 10.5:1 (583.5cc swept volume, 42cc head, 10.5cc pistons, 9 cc gasket
i'm also worried that even with a re-graphed dizzy (max 36deg advance) it will ping and anoy the crap out of me.......
i'm hoping 98 optimax will do the trick.
dunc.
>From: "Tony Bryant" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: <[EMAIL PROTECTED]>
>Subject: Re: 10.5:1 compression ratio
>Date: Thu, 22 Nov 2001 11:11:33 +1300
>
>I run my 10.5:1 L17 on 96 unleaded without detectable knocking.
>
>----- Original Message -----
>From: "Justin Friedrichs" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Thursday, November 22, 2001 10:48 AM
>Subject: 10.5:1 compression ratio
>
>
> >
> > Morning Listers,
> > Would a race 10.5:1 CR L18 motor be able to run on 98 octane premo
> > unleaded??
> > Just for interest what CR is it necessary for a donk to run on
> > AVGAS??
>
>
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