> Is it vintage legal to have a modified air cleaner to route cold
> outside air into the carbs (from ducting fitted to the removed
> headlights) as an
> alternative to putting in the heat baffles between the carbs and exhaust
> manifold? (Perhaps the first question should be whether this
> really is a good idea
> to improve power output)
On a related subject, does anyone know of float chamber lids that will fit
SU HS6 carbs, but have an external bowl vent (ala H6 carbs) ?
Stock TR4A HS6 carbs have the vents built into the lids such that it's
difficult to add a hose to them, but IMO connecting the vent to the air box
is a necessity for running a fresh air intake. Otherwise, any pressure
difference between the top of the float chamber and the air box will affect
the fuel flow and hence mixture. I could probably create something with
JB Weld, but if they already exist ...
(Thanks to Jack for pointing out this shortcoming in my planned street
setup.)
And no, I won't be passing anyone on a race course (only off of one) <g>
Randall
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