Need help a possible plugged kitty

[Jim Green]

--- David Conner <conner at cfm.Ohio-State.edu> wrote:
> Jim,
> I'm not sure where your O2 bungs are, but it may be
> easier to tap into the
> sniffer tube.  In my cars the sniffer tube is near
> the top of the engine
> above the turbo whereas the 02 bung is under the
> car.

Yea, um I don't have one of those.  It wasn't a
priority when doing the header:)

> Scott M has info on testing backpressure on his
> website.  IIRC he says an
> old cat read 6 psi back pressure and a test pipe
> read 3 psi
>
> The two cars I tested, both with old cats, were in
> the 5-6 psi range.

Thanks, those are good values to go by.  I would hope
my 3" exhaust gives only 2-3 psi of back pressure.
I'll post what I find tonight.

Jim

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