[6pack] Moss SU Upgrade for TR6

[Jim Jones]

Alex:
 
I had this set up on my 72 TR6 (before I went to a Moss supercharger kit). I
will confirm that they are vents and it would be a good idea to run hoses from
them away from the manifold.
I know this to be the case because I had an incident with a clog in one carb
and fuel was spurting out of the vent all over the exhaust manifold. Quite
exciting! Because of that I would recommend against venting to the canister.
Better to have the fuel on the ground than a canister overflowing with it. I
routed my hose to the front of the driver side of the engine bay.
 
In case you're wondering about the Moss blower, yes it does provide better
power, but a very nice side benefit is the improved drivability provided by
the modern Holley carb. Start up is much easier, often without need of the
choke. Fuel enconomy is no worse than before the conversion. A very nice set
up and well engineered.
 
Jim Jones
Jeff City, MO
--- On Sun, 5/23/10, Alex <ambritts at bellsouth.net> wrote:


From: Alex <ambritts at bellsouth.net>
Subject: [6pack] Moss SU Upgrade for TR6
To: "*Six Pack" <6pack at autox.team.net>
Date: Sunday, May 23, 2010, 4:25 PM


Hello all,
A friend of mine just bought a 1970 TR6 that has the Moss SU upgrade. There
are two brass tubes (one ea carb) coming what appears to be out of the fuel
bowls. They are open to the air with nothing attached.

I was told they are over flow tubes and nothing needs to be attached. If you
put your fingers over the opening of each tube, the car will stall out. It
appears that they have a unction. If this is the case, I can only assume that
at the very least there should be some kind of filter mechanism.

Is anyone familiar with the Moss SU upgrade and what these tubes are for and
how they should be set up?

Side note - the car idles at about 1100, has a Pertonix coil and electronic
ignition.

Thanks,
Alex Manzo
72 TR6
59 TR3A
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