afr basics

[DOUGGN]

It there a thread or site that anyone has seen that gives the basics on air fuel ratio and how to tune with afr gauge? Looking for a tutorial for a beginner.

thanks for the help.

 

[earlbrown]

https://www.google.com/search?q=tune+with+afr+gauge

 

[Paul Lohr]

Getting a feel for the variables affecting the combustion process helped me a bunch.

I view tuning the air/fuel ratio as part of combustion optimization. Do we also want to look at spark timing?

Innovate Motorsports has some decent reading on the subject.
http://www.innovatemotorsports.com/resources/efi-central.php

This article discusses basics of the combustion process relative to air/fuel ratio.
http://www.innovatemotorsports.com/resources/rich.php

Finally, this article explains the unmentioned reasons for richening the mixture (amongst other topics). It is written relative to carbureted aircraft engines. It is a very good article...I have not found certain revealing bits anywhere else.
http://www.gami.com/articles/bttfpart1.php

 

[DOUGGN]

Thanks for the help so far - I will check those out. I spent a little time searching the site for buick specific tuning but didn't have much luck. I thought someone out there may have written/seen something relating to this.