[alfa] (akfa) Shankle Quadra flow

["George Schweikle" <schweikg@xxxxxxxxxxxxx>]

Digesti,

If you believe the different length and diameter of the Quadra flow air
intake tubes is beneficial, the way around the hotter engine bay air issue
is thus: Use the Shankle intake tubes and air filter backing plates, and
build a cold air box using the backing plates as the engine side of the air
box. A hardware store clothes dryer vent fitting can be used as a transition
piece at the front, allowing a flexible air hose routed to behind the grille
area where a generic round K & N air filter is attached.

I used 1 in. Aluminum angle and sheet, and pop riveted the box together with
the angles on the inside. Dimensions are 5 1/2 x 5 1/2 x 15. It should
really be sortened to 13 in. long to eliminate slight interference with the
underneath of the the hood at the outside front of the box. I also removed
the original sheet metal air channel near the radiator mount to allow room
for the rectangular air hose.

I like to think I have the best of both stock and Shankle air induction. The
shorter and larger intake tubes move the power peak to a higher RPM that is
more suitable to the autocross use for my 76 Spider (right, Jim Steck?).
With a little polishing, the cold air box even looks good....

George Schweikle
Lexington, KY
76 Spider
91 Spider Veloce


> Stacy
> good observation!  A lot of Quadraflows in our garages...
> And it's "Shankle TM Sport Quadraflow".
> The original claim of "average 7 horsepower increase over the stock Alfa
air
> filter", according to the Alfa Ricambi manual, has always been questioned.
> The theoretical increase in flow is offset by the hotter engine bay air at
> the intake, as opposed to the fresh cool air rammed into the spica airbox.
> The solution?  K&N filters for the Spica box.  Proven beneficial?  I think
> not.
>
> The only *proven* advantages to the Quadraflows are:
> 1 - they look good!
> 2 - they sound great!  The intake sound is addicting.
>
> So enjoy the Quadraflow during the cold season, or all year if you don't
> race.
>
> Jorge Mazlumian
> 73 GTV with Spica airbox (for now)
> Shankle Sport Quadraflow in the garage, hardly used (for sale).
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