<VV> CO Question

[Bill H.]

                                                                B"H

What I can say, is that the exhaust was definitely "cleaner" in the sense that there was almost no smell that your nose could detect, with the cat installed.

My car does have a Pertronix ignition.  I use .048 main jets in the carbs and the car runs fine, no hesitation or "backfiring."  There is no pinging either, although I turn on the water injection when I'm doing highway driving and/or when the engine warms up.  The water injection system is energized with a vacuum switch that turns the pump on when the accelerator is depressed, and off when it's released.  I have had success with using methanol-based washer fluid in this system.   There's a central nozzle feeding the intake, located opposte the PCV port in the air tube connecting the air cleaner to the carbs.






--- On Wed, 3/10/10, shortle <shortle556 at earthlink.net> wrote:

> From: shortle <shortle556 at earthlink.net>
> Subject: Re: <VV> CO Question
> To: "Harry Yarnell" <hyarnell1 at earthlink.net>, "Bill H." <gojoe283 at yahoo.com>, virtualvairs at corvair.org
> Date: Wednesday, March 10, 2010, 11:14 AM
> In '75 when cats first showed up the
> thinking was electronic ignitions would keep cars from
> misfiring. I remember my 1975 Volvo had a cat converter, an
> EGR system, and a smog pump. All this stuck on a 2 litre 4
> cylinder push rod motor with an automatic transmission w/
> AC. Performance was certainly not very impressive as I
> recall.
> Timothy Shortle of Durango Colorado
> currently enjoying Fountain Hills,AZ
> 
> 
> -----Original Message-----
> >From: Harry Yarnell <hyarnell1 at earthlink.net>
> >Sent: Mar 10, 2010 9:07 AM
> >To: "Bill H." <gojoe283 at yahoo.com>,
> virtualvairs at corvair.org
> >Subject: Re: <VV> CO Question
> >
> >I'm not sure how much unburned exhaust a cat can clean
> before it gets 
> >clogged. Usually they're on vehicles that have enough
> controls or are more 
> >efficient than the corvair for a 'complete' burn. I
> know a misfiring 
> >cylinder will plug a cat in time.
> >
> >Harry Yarnell
> >Perryman Garage and Orphanage
> >hyarnell1 at earthlink.net
> >----- Original Message ----- 
> >From: "Bill H." <gojoe283 at yahoo.com>
> >To: <virtualvairs at corvair.org>
> >Sent: Wednesday, March 10, 2010 10:57 AM
> >Subject: Re: <VV> CO Question
> >
> >
> >>             
>                
>                
>      B"H
> >>
> >> Thanks everyone who responded to my CO
> question.  I replaced the modified 
> >> tailpipe contraption with a 90 degree elbow,
> routing the exhaust back to 
> >> the side of the car, as with stock.
> >>
> >> So far, I had 0 pmm the entire trip to work today,
> so all those who 
> >> advised me to keep the stock configuration, thank
> you; you were correct.
> >>
> >> However, with the universal cat converter removed,
> the exhaust stinks like 
> >> it used to with all the older cars (which if
> course is normal).  That cat 
> >> really does work!  Too bad there doesn't
> appear to be enough room in the 
> >> Unipack exhaust to install it anywhere easily.
> >>
> >> Thanks again...Bill Hershkowitz 69 Monza 110 PG
> >>
> >>
> >>
> >>
> >>
> >>
> >>
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