[Diy_efi] Timing Advance Curve?

[Mike]

This was covered in in several posts recently by a couple of posters,

Its possible to contrive fuels to be either fast or slow burn at
either high or low octane, there is no causal relationship.

In fact a porsch tuner commented to me some time ago that the higher
octane fuels seem to burn faster,

Also there is no causal link between octane and energy levels, you
can have high octane - such as methanol with abysmally low (50%)
energy level of petrol and the opposite can also be arranged.

In summary, at the pump there is no direct causal relationship
between higher octane and burn rate, people seem to report different
perceptions - there is a faq on this as posted initially by Brian,

rgds

mike



At 02:02 PM 12/20/02 -0700, you wrote:
>
>Ok--so you're saying that flame speed, burn rates are identical between
>low octane and high octane fuels, correct ?
>
>Lyndon.
>
>
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