I think that skimming block/head will always raise CR, not lower it.
Paul
PAsgeirsson@juno.com
On Mon, 10 May 1999 09:35:28 PDT "andy webster" <trunkie@hotmail.com>
writes:
>Larry,
>Was yor block/head skimmed? Otherwise the greater combustion chamber
>volume
>will have lowered your compression ratio thus reducing the tendency to
>ping
>and/or diesel
>Andy
>
>>From: "Larry Miller" <millerls@ado13.com>
>>Reply-To: "Larry Miller" <millerls@ado13.com>
>>To: "Toby Atwater" <tob@taltec.net>, "Sprite Mailing List"
>><spridgets@autox.team.net>
>>Subject: Re: speaking of fuel....
>>Date: Mon, 10 May 1999 07:58:32 -0700
>>
>>I've run my rebuilt 948 (1098 head with hardened seats) on all grades
>and
>>can't tell the difference. No pings or dieseling.
>>
>>Larry Miller
>>----- Original Message -----
>>From: Toby Atwater <tob@taltec.net>
>>To: Sprite Mailing List <spridgets@autox.team.net>
>>Sent: 09 May, 1999 8:14 PM
>>Subject: speaking of fuel....
>>
>>
>> > quick question....
>> >
>> > I just realized, I have no idea what these cars run on.... I
>bought 3
>> > gallons of 97 "supreme" octane petrol, but I have no clue if that
>is
>> > necessary. What spridegts were designed to run leaded fuel? any?
>all? as
>>I
>> > understand it... the A series engine runs about 8.5 :1
>compression, what
>> > octane should I run to prevent detonation?
>> >
>> > I could always just experiment and try 87 octane and see if it
>> > pings/pinks/detonates/knocks ...
>> >
>> > As always, thanks for your help...
>> >
>> > Toby
>> > Toby Atwater, Santa Barbara, CA, tob@taltec.net
>> > 1969 Austin Healey Sprite, mk 4 ?? octane
>> > 1971 FJ-40 Toyota Land Cruiser designed to run off sugar cane
>alcohol.
>>(back
>> > in the day)
>> >
>> >
>>
>>
>
>
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