quick FI question #2
advance, CR, cylinder pressure, and octane are all ***** to turn with an FI setup.
More often, a higher pressure ratio will put a turbo/blower into a more efficient range of operation (ie lower temps after compressing the air). Being able to run at those pressures will often reduce the safe advance/CR you can run for a low octane number.
lower charge temp goes a long way
And it's easier to make things live on pump fuel with a lower CR.
More often, a higher pressure ratio will put a turbo/blower into a more efficient range of operation (ie lower temps after compressing the air). Being able to run at those pressures will often reduce the safe advance/CR you can run for a low octane number.
lower charge temp goes a long way
And it's easier to make things live on pump fuel with a lower CR. 
