[TR] Need SU HS6 Part Measurement or the part itself

[Rick]

Bill,

 

Give Paltech a ring. The part you need is off of a TR6, and Jeff will set up
the entire linkage for you and test it in his shop. However, in fitting HS6s
to a TR3A, you should use the TR4A intake manifold (and exhaust manifold, as
they fit together). The TR3A intake manifold throat is too short and the
ports are clumsily made; in comparison, the TR4A manifold is a fluid
dynamicist's dream. HS6 carburetors have a shorter throat than the H series,
expecting to see the longer manifold length. You will have to adapt the TR4A
dual exhaust manifold to fit your existing single down-pipe as well. You're
looking at several hundred bucks to complete the conversion, but will
appreciate the upgrade in performance.

 

Rick in Seattle

1960 TR3A

1970 BSA 441 Victor Special

1975 Norton 850 Commando Mk 3