| To: | "Jim Muller" <jimmuller@rcn.com>, <spitfires@autox.team.net> |
|---|---|
| Subject: | RE: 1500 engine rebuild |
| From: | "de Brebisson, Cyrille (Calculator Division)" <cyrille@hp.com> |
| Date: | Tue, 2 Jan 2007 08:25:54 -0700 |
Hello, > I'm thinking of changing the pistons from the dished out type that have a > 7.5 to 1 compression ratio to the flat type that have a 9.0 to 1 ratio. Do > you think this is a good idea? I rebuild mine with 9:1 pistons and it works great on any gas... Modern gas have good pre-detonation characteristics that allows to run much higher compression ratios than 9:1 on standard regular... Cyrille. === This list supported in part by The Vintage Triumph Register === http://www.vtr.org |
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