lean and rich

[Shannen Durphey]

Mike Jensen wrote
> 
> DIY_EFI Digest        Tuesday, August 24 1999        Volume 04 : Number 486
> 
> In this issue:
> 
>         lean & rich
>         Prom Carriers
> 
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> DIY_EFI or DIY_EFI-Digest mailing lists.
> 
> ----------------------------------------------------------------------
> 
> Date: Tue, 24 Aug 1999 08:35:57 -0400
> From: "Jensen, Mike" <MJensen at etcusa.com>
> Subject: lean & rich
> 
> This may sound like a very silly question, but when it is said that an
> engine is running lean it means that it is getting excess air for the
> amount of fuel that it is getting , and vice versa for a rich burning
> engine (excess fuel for the amount of air that it is getting)
Yes. Lean and rich are relative terms.  Lean can mean "so much air
that the mixture won't burn" or "just enough extra air to melt a
piston".  14.7:1 air:gasoline ratio provides most complete
combustion.  Lean and rich increase and decrease the amount of air
from there, respectively.
Shannen
> 
> Michael H. Jensen
> Mechanical Designer
> Environmental Tectonics Corp.
> 125 Jamesway
> Southampton Pa. 18966
> Phone (215) 355-9100 Ext. 276
> Email mjensen at etcusa.com <mailto:mjensen at etcusa.com>
> 
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