Re: Alfa Spica vs Ferrari Webbers

["Thomas Moll" <moltek@domain.elided>]

Yes the US spec Alfas with Spica was down on HP compared to the carbureted
Euro spec Alfas. But it is not a direct comparison since the European cars
had different cams with more lift and different distributor advance curve. I
would love to get the opportunity to dyno test three 74 Alfas, one a
completely stock US spec car, one a completely stock Euro car and the last
one US spec but with re-curved distributor and Euro cams. I bet there would
be very little difference, possible with a slight low end torque advantage
to the carbureted car and a slight top end advantage to the Spica car with
Euro cams and distributor due to the fact that the auxiliary venturi of the
carbs restrict the airflow more than the spica throttle bodies.

Thomas Moll
Seattle, WA
Saving up for a mobile engine dyno...


----- Original Message -----
From: "Brian Shorey" <bshorey@domain.elided>
To: "'Paul Misencik'" <paul@domain.elided>; "'Alfa Digest'"
<alfa-digest@domain.elided>
Sent: Saturday, March 01, 2003 8:45 PM
Subject: RE: Alfa Spica vs Ferrari Webbers


> What I meant to say was that it was (imo) done primarily for emissions
> reasons, and perhaps secondarily for performance reasons, as possibly
> meeting emissions with carbs would have resulted in even lower
> performance than the Spica system.
>
> The Spica Alfas of the 70's were down on HP from the carbed Euro Alfas
> of the same era.  If pure performance was the goal, then Alfa got more
> out of the carbed Euro cars.
>
> I think they were looking at how to get the best performance under the
> emissions constraints they were being saddled with, which is a lot
> different than saying they switched to the Spica system purely for
> performance reasons.
>
> bs
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