<VV> OBD-II for Corvair to make Corvairs less "aromatic" ?

[Charles Lee]

Thanks for the excellent ideas - I would never have thought of a generic 
catalytic converter.

The EFI/DIS lend themselves nicely to other (digital) electronic auxiliary 
solutions, such as Ken Campbell externally setting the high speed mixture at 
speed, or the "Innovate" system to digitally control (or at least monitor) 
air flow dynamically, among other "engine-ious" solutions.

I have a great book on fuel injection by Bosch to go along with Bob Helt's 
carb book both full of fun facts that lead to thinking about improving the 
Corvair's air-quality-quotient, plus make them eminently more reliable in 
the process.

Maybe electronic controls like Mike Mauro's air flow meters are just what 
are needed to continually monitor the wide range of operating conditions 
that drive the Corvair ?

Has anyone used Arduino DIY circuit boards to design your own controls ? 
They are completely programmable and may provide an interesting solution ?

I'm still trying to NOT asphyxiate myself while getting mine to run well 
enough to drive, and figure now's the time to investigate my options ?

Thanks for the insights !
Charlie

----- Original Message ----- 
From: "Dale Dewald" <dkdewald at pasty.net>
To: <virtualvairs at corvair.org>
Sent: Saturday, October 09, 2010 9:17 PM
Subject: Re: <VV> OBD-II for Corvair to make Corvairs less "aromatic" ?


> At 17:09 10/09/2010 -0400, Charlie wrote:
>
>>I have heard on VV that Corvairs (and other air-cooled engines) are not 
>>good
>>candidates for meeting air quality requirements due to the high
>>temperatures, (and poor construction tolerances ?)
>
> It is not so much the operating temperature, but the wide range of
> operating temperatures that occur between idle, coast, cruise,
> acceleration, etc for an engine that is, for all practical purposes,
> "warmed up."  This necessitates rather loose tolerances--by design--to
> account for thermal expansion of the various parts.
>
>>It seems like you have done a lot of research and we might all benefit 
>>from
>>this to make Corvairs less "aromatic" ?
>>
>>I can smell "classic" cars when they drive by me, and know that my Corvair
>>(also a 1967 Monza 110 PG) also does, and would like to remedy that.
>
> Beyond making adjustments to the carburetor jetting, you might consider
> installing a universal fit catalytic converter in the exhaust system.
>
> Dale Dewald
> Hancock, MI
>
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