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The Terminator
Engine/Tuning
Help ordering custom Diamond Piston
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<blockquote data-quote="SlowSVT" data-source="post: 14117721" data-attributes="member: 20202"><p>I would not be overly upset with 8.15:1. If it was 10:1 I would not be happy about that at all especially on a PD FI car. I've got CP's with a 23cc dish which equates to 8.5:1 on a Boss block. I made the mistake of ordering the pistons before I started working on the heads and noted how the larger bore allowed for unshrouding the valves which opened up the chamber volume. Something tells me when I cc the heads I'm gunna be in the same boat as you and am likely to be closer to 8:1. On an FI engine that is not necessarily a bad thing as your engine running 20 lbs on 91 confirms. What's with the 17 degrees? Your engine has more knock protection than a 45 year old Lesbian can't you push it closer to 40 and let the gizmos handle the detonation suppression? :-D</p></blockquote><p></p>
[QUOTE="SlowSVT, post: 14117721, member: 20202"] I would not be overly upset with 8.15:1. If it was 10:1 I would not be happy about that at all especially on a PD FI car. I've got CP's with a 23cc dish which equates to 8.5:1 on a Boss block. I made the mistake of ordering the pistons before I started working on the heads and noted how the larger bore allowed for unshrouding the valves which opened up the chamber volume. Something tells me when I cc the heads I'm gunna be in the same boat as you and am likely to be closer to 8:1. On an FI engine that is not necessarily a bad thing as your engine running 20 lbs on 91 confirms. What's with the 17 degrees? Your engine has more knock protection than a 45 year old Lesbian can't you push it closer to 40 and let the gizmos handle the detonation suppression? :-D [/QUOTE]
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Help ordering custom Diamond Piston
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