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Re: Gasoline Octane Rating?
Posted by Simon S (more from Simon S) on Tue, 15 Jul 2014 07:55:35
In Reply to: Gasoline Octane Rating?, Bill Homer
[Profile/Gallery]
, Tue, 15 Jul 2014 06:29:19
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Bill probably hit it on the head. Normally aspirated engines don't need the high octane at altitude - since it effectively lowers their compression. No such luck in an pressure based fuel system in a turbo. However, the lower air pressure does drastically affect low end torque, and so I'm not surprised if it perturbs the idle a bit.
posted by 67.189.7...
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