Closed vs Open Combustion Chamber - Fuel wieght.

[RedMist]

As a progression from Acesnipers thread, I was thinking of the attempt to keep fuel in suspension and wondered if fuel weight was a significant factor in determining wither or not to run a closed combustion chamber.
Avgas is significantly lighter than petrol, I would speculate that this is because it is madeup of shorter chain hydcarbons, again speculating, this should ensure a better fuel distribution through the charge and enable the fuel to carry further without puddling on the cylinder walls.
I wondered if anyone has any ideas on the speculation.

[RedMist]

My logic is flawed in regards to short chain hydrocarbons and density. But its most certainly a lighter weight fuel with higher octane rating.

[Mr Revhead]

you boffin you.

maybe a thread on what closed/open chamber means maybe a better starting point! im sure a lot here would find it interesting.

[RedMist]

Already there my fellow boffin friend....
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