<VV> Kamm Back and Exhaust Fumes - Quick test

[Bill H.]

                                      B"H

This topic is very interesting, I find.  I've ordered
a Monza pencil resonator exhuast tip which I plan to
install after the stock muffler after it arrives (G-d
willing) on my LM coupe.

I think I will exit the exhuast out the rear of the
car instead of the side, since there's more inches of
length available..

Now, I also have a battery powered Kidde CO detector
inside the car which measures real-time PPM via a
digital display.  It will be interesting to see if CO
goes up when the heater is on and the windows are up
with this exhuast configuration.

With the completely stock exhuast, CO can go up to
around 30-50 ppm after startup.  The car sits in the
garage at night and I open the garage door, start her
up, back her out of the driveway.  I open the car door
to get out and close the garage door (auto door opener
has been busted for a few years already!).  Perhaps
exhuast from the startup gets in from the open door,
and sometimes I'll take one of my kids to the subway
(passenger door gets opened after the car is outside
warming up).

If I turn the heater on, ppm goes down quickly to 0. 
That's good, but I also roll the driver's window down
a bit and may even open the crotch cooler on my side
for a few minutes till the CO goes down to 0 even more
quickly (to be expected).

I don't think any other car of the Sixties would give
any better results, I think the CO comes from exhaust
entering the car from the door being openeed, or the
car being started from inside the garage.  The side
exahust may make this worse, since exhaust stays
inside the garage (even with the garage door wide
open).

When I put the car away at night, the house would
stink from the exhuast (garage is built into the
house) but I solved that in an interesting way:  Took
a length of PVC pipe (around 5 feet) with a 90 degree
elbow and a short length of pipe on the other end of
the elbow which fits into the exhaust pipe.  Slide the
PVC thingy into the exhuast pipe and drive the car
into the garage.  The PVC acts like an extension,
keeping the fumes away from the garage, problem
solved, family stopped complaining!  It doesn't work
in reverse (when backing the car out); the pipe gets
knocked out of place by the reverse motion of the car.
 Maybe a couple of small wheels on the end of the pipe
would fix that.  (Yeah, let the neighbors think I'm
more nuts than they did before!).

Regards to all...Bill Hershkowitz 69 Monza Coupe 110
PG



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