Geesh, I take an afternoon off from e-mail and look what I missed: Herald
questions asked and answered! :-)
There isn't much left for me to add, I guess, except to point out that there
are a couple "flavors" of stock Herald 1200 engine. The earlier version put
out a whopping 39-40hp and the later "12/50" engine a mind-boggling 48-51hp
(Hey, it is about 25% increase), both from the same single Solex. Simply
bolting dual SU HS2s on the earlier engine will gain you maybe 5-7 hp at the
possible expense of some low-end torque. Still a worthwhile and quick boost.
Doing the same thing on the "12/50" engine (which already uses the Spitfire
camshaft), and milling the head and possibly doing a few other little
massage-type operations, brings you pretty close to the 1147 Spitfire's
63-67hp.
As everyone else has noted, the best "driver's" car would start with the
later chassis from GA80001 or GB1/GD1 and future. This chassis will also
allow an OD gearbox to be dropped in behind the engine of your choice
(including a 1296 or 1493 if so inclined). OR, if you're less concerned with
major Motorway speeds, you might be very happy with a relatively stock engine
complete with Solex B30PSE1 carburetor.
--Andy (not quite up to Bill Davies' total Herald count...YET! I've only nine
or so at the moment, and only about 15-16 total over the years....)
Andrew Mace, Vice President, Member Services
and 10/Herald/Vitesse (Sports 6) Vehicle Consultant
The Vintage Triumph Register <www.vtr.org>
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