I went for a Dynorun some time ago.
The guy asked me to put higher octane in beforehand.
I'm assuming this was to get a better HP 'score', and that I'd have to put the same, more expensive fuel in from then on.

.... Just curious.

As I always just put the cheap stuff in.
When I go for my long overdue next dyno session I'll be putting the cheap stuff in, as I'm not worried about my HP on the dyno just the correct A/F bit.

Question: If using PC, would there be any HP gain from tuning a bike to run higher octane fuel - compared to a bike tuned to run on the cheap stuff?

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