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Low octane motor ideas 140-160

posted by  JohnH on  Wed Dec 21 15:32 CST 2011
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last visit: Mon Oct 6 00:29 CST 2014
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Hi,
I'm entered in a long distance rally event where the quality of fuel is an unknown. In similar past events, people have been advised that for places it can be as low as 80 Octane. To me, this dictates building a pretty low compression motor - maybe 8:1 - but I still want some oomph for the competitive sections.
Any ideas on how to do this, within the constraints of a 2 litre B20 motor? I don't think we will be allowed to bore/stroke the motor, which makes it a bit challenging.
Regards
JohnH
--
JohnH, Sydney, Australia






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