Cat...

[Kevin Vannorsdel]

Application is a 300HP Chevy Crate motor on a 4x4.

Interesting comment---  this cat has a tube for air injection ...   what if I
pump air into the thing?

________________________________________________
  Kevin Vannorsdel     IBM Arm Electronics Development
    408-256-6492                Tie 276-6492     kv at us.ibm.com



owner-diy_efi at efi332.eng.ohio-state.edu on 08/17/98 09:00:44 PM
Please respond to diy_efi at efi332.eng.ohio-state.edu
To: diy_efi at efi332.eng.ohio-state.edu
cc:
Subject: Re: carprom software


Hi Kevin
Oddly I have found fuel leaking into
cat doesn't faze it.

I believe with no O2 content there is no
burning in the kat.

However Cats only work around STOICH.
So if you are running a rich AFR they
do nothing.

Make sure you are working around 14.7 to 1

:peter

Ps what was your application and cal

At 11:08 AM 8/18/98 -0400, you wrote:
>
> Anyone have any experience with how much a good catalytic convertor will
reduce
>exhaust HC numbers?
>
>Also-  I assume that too much HC will cause pre-mature cat failure...  don't
>want that either.  Any comments on this?
>
>I currently am at 1300PPM  HC at idle and need to get down to 150 or so to
pass
>emissions.   Some more chip work is sure to help but curious to check if
anyone
>had any comments about the cat effictiveness/failure.
>
>Thanks!!
>
>________________________________________________
>  Kevin Vannorsdel     IBM Arm Electronics Development
>    408-256-6492                Tie 276-6492     kv at us.ibm.com
>
>