Bill,
I had one of the Cannon manifolds for a short time and was very
dissatisfied with its design. It may work well for track purposes when
the pedal is mostly to the metal. But for street use it concerns me.
Here's the problem:
The 4 tubes get routed together to match the Weber's 2 ports. This
means that the outer ones end up being longer than the inside two. The
result is too much fuel going to the inside cylinders of too little fuel
to the outside two. In the "too rich" scenario, the inside cylinders
get "washed down" and the result is ring wear and a rebuild.
So If you do build a manifold for a single DCOE, be sure to take into
consideration the balance of the tubes.
Joe
Bill Miller wrote:
>
> List -
>
> I am in the process of making an intake manifold for a single Weber
> sidedraft. As the price for the carb from the importer is <$250, I figure I
> can make a good stainless steel intake for it and not spend *too* much for
> the whole package. My question for the list is if anyone has one of these
> on a street or race spit, I would be interest in the runner length. My
> experiments say that runner length (length from car to intake ports) really
> affect the performance. (high vs. mid RPM performance) I know a lot of
> other items enter into the equation (cam, etc.) I am just interested in
> what other people have come up with. If you have one let me know - 1)
> runner length, 2) street or race, 3) approx. diameter of runners.
>
> Thanks in advance,
>
> Bill
--
"If you can't excel with talent, triumph with effort."
-- Dave Weinbaum in National Enquirer
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