air fuel ratio


air fuel ratio

Postby leafar » Mon Sep 10, 2007 9:16 am

i am converting my car to methonal the car on gas (c16) the air fuel was 12.0 now that it is going to be meth. i dont know where it should be.


Re: air fuel ratio

Postby Marvindjojo » Mon Sep 10, 2007 10:40 am

stoichiometry for methanol is approximately 6.5:1


Re: air fuel ratio

Postby drjekl » Mon Sep 10, 2007 6:24 pm

12.0 under c16 = .81lambda
5.2 under meth = .81 lambda.

i would use that as a target but watch Exhaust Gas Temps dont get to high say around 850degc is high, if so go lower in AFR/lambda. have seen a meth engine run .70lambda. <i>Edited by: drjekl at: 9/10/07 6:27 pm


Re: air fuel ratio

Postby buttle » Wed Sep 12, 2007 2:27 pm

is this car turboed or n\a? it makes abig diff. believe me let me know


Re: air fuel ratio

Postby leafar » Wed Sep 12, 2007 9:08 pm



methanol afr's

Postby crispeed » Thu Sep 13, 2007 5:31 am

Is it intercooled?


Re: methanol afr's

Postby leafar » Thu Sep 13, 2007 9:59 am

no the car is not using an intercooler and it is a 4 cylinder engine

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