[W126 Coupe] optimum air to fuel ratio

[Shayegan, Richard]

There's more fuel but less air right? I know leaner = more power for
2-strokes, I know in Indy the driver's lean em out as far as they can
(I've even seen a blown engine on the last lap as the driver tried to
lean it out further to get more power), and a guy I know who builds race
cars says leaner=more power, but then everywhere I read says 13.5 is
ideal for power. Is it just that 14.7 is overlean?

Here's an example of the conflicting evidence
http://www.kennebell.net/faq/faq-answers11%286%29.htm

It says in answer to the third question 13.5 is ideal for power, but it
takes high octane to run lean. Then it says want more power run higher
octane and go leaner (I'm paraphrasing). This is a link Jim Nowak gave
as evidence that 13.5 is better than 14.7, so it makes me think it's
credible.
Richard

-----Original Message-----
From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Dan Landiss
Sent: Thursday, August 25, 2005 4:44 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] optimum air to fuel ratio

Shayegan, Richard wrote:

>As far as I always knew, leaner = more power
>
Somebody lied to you.

>how can 13.5 give more power than 14.7?
>  
>
Because there is more fuel.

 
--
Never argue with a dragon, for you are crunchy and taste good with
ketchup.



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