AF ratio's
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AF ratio's
Ok,
I hear a lot about the AF ratios that they should be between 11 and 12 what is exactly right?
Are these in metric, so 12 kgs of air to 1 kg of gas?
Please explain.
regards,
Rogier
I hear a lot about the AF ratios that they should be between 11 and 12 what is exactly right?
Are these in metric, so 12 kgs of air to 1 kg of gas?
Please explain.
regards,
Rogier
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Re: AF ratio's
Originally posted by skim41
I hear a lot about the AF ratios that they should be between 11 and 12 what is exactly right?
I hear a lot about the AF ratios that they should be between 11 and 12 what is exactly right?
Originally posted by skim41
Are these in metric, so 12 kgs of air to 1 kg of gas?
Are these in metric, so 12 kgs of air to 1 kg of gas?
Example:
12 kg air : 1 kg fuel = 12:1
12 g air : 1 g fuel = 12:1
12 mg air : 1 mg fuel = 12:1
12 pounds air : 1 pound fuel = 12:1
12 oz air : 1 oz fuel = 12:1
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Originally posted by mwatson184
I thought it was a mol ration not a mass ratio?
-Marques
I thought it was a mol ration not a mass ratio?
-Marques
Mol
Definition: [n] the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the System International d'Unites
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ok thanks for that, but is the ratio for each car different? rx7 I mean than. I got a 3rd gen, and going to a t78 with mild streetport. open exhaust, and well everything on it.
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Originally posted by skim41
ok thanks for that, but is the ratio for each car different? rx7 I mean than. I got a 3rd gen, and going to a t78 with mild streetport. open exhaust, and well everything on it.
ok thanks for that, but is the ratio for each car different? rx7 I mean than. I got a 3rd gen, and going to a t78 with mild streetport. open exhaust, and well everything on it.
2) Every type and brand of gasoline is slightly different.
3) I assume you are attempting to tune the engine by reading a display from an air-fuel ratio gauge. The gauge may not be calibrated properly, and will give different readings depending on where you place the O2 sensor. You will not ever have a totally reliable reading unless you use special laboratory equipment.
4) Not very many people have the EXACT setup you have, and even if they did your engine would still act differently. See DCrosby's 4th post about this subject here:
https://www.rx7club.com/showthread.p...hreadid=220817
Engine tuning is performed by adjusting trends, not specific numbers.
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