Whats the ideal wot a/f for alcohol?

 

what kind of valve springs do you have?

 

 

i read somewhere its from 7.1 to 9.1

 

Stoich for Methanol is 6.5 A/F=1.00 Lambda

Stoich for Ethanol 9.0 A/F=1.00 Lambda

 

It depends greatly on what type & concentration of alcohol, but here is a list of the stoichiometric air-fuel ratio's for different fuels to give you something to look at now. Typically the ratio will be between 7.1 to 9.1 for alcohol. Also pre-ignition can be problem unless the mixture is kept well on the rich side. The reason for this is that if the mixture is on the weak side it burns slowly and can still be so doing when the exhaust valve has opened which then becomes overheated. This in turn ignites the next charge before the correct time, the whole process becoming a chain reaction causing even more rise in temperature and so it goes on until the piston holes and other damage then follows.

Gasoline: 14.7

Natural gas: 17.2

Propane: 15.5

Butyl Alcohol: 11.2

Ethanol: 9

Methanol: 6.4

Hydrogen: 34

Hexa-Decane: 15

Diesel: 14,6

 

There ya go

 

lol better than yours..
yea i know what stoich for methanol is.. like for gas it 14.7 and we like to run 12.8 wot, when i go to strap this on the dyno what do I want to run wot?

 

What type of Alcohol?
Ethanol,Methanol or what?

 

itll be methanol