RE: SPICA air boxes

["Ian Lomax" <sfalfisto@domain.elided>]

I always assumed those "nipples" were drain holes.  But then, I have
nothing to back that up...

Cheers,
Ian Lomax

> -----Original Message-----
> From: owner-alfa@domain.elided [mailto:owner-alfa@domain.elided] On 
> Behalf Of Joe Martin Cantrell
> Sent: Sunday, February 02, 2003 9:18 PM
> To: alfa-digest@domain.elided
> Subject: SPICA air boxes
> 
> 
> SPICA air boxes came in several different configurations.  
> Perhaps they 
> should have been painted "Italian Racing Red" to help people 
> recognize how 
> good they are; I'll bet the dull gray has predisposed many to junk 
> them.  But that's the artist talking.
> 
> For those who have not fully appreciated them, the SPICA 
> boxes feature cold 
> ram air intake into the inside of two air filters.  Air 
> passes out through 
> the filters to the outer plenum, where belled intake horns 
> lead into the 
> intake manifold.  I don't pretend to knowledge of all, but this is 
> obviously an extremely well thought-out system.  The one I 
> refer to, is off 
> about a 1972 Berlina.
> 
> This one has two nipples on its bottom, one between #1 and #2 
> intake horns, 
> one behind #4.  They are about 6mm diameter, and lead 
> directly into the 
> outer plenum which leads directly into the intake tubes.
> 
> Obviously, if there was a negative pressure in the outside 
> plenum,  they 
> allowed unfiltered air into the engine.  At high speed, ram 
> air might have 
> overwhelmed the unfiltered intake, but at low speeds, on 
> dusty roads, these 
> babies would have sucked sand.
> 
> Does anyone know what they might have been connected to?  The 
> front one 
> might have had a tube to the vapor separator, but I have no 
> idea what the 
> rear one could have lead to.
> 
> I plan to cap them, but if there's something I've overlooked, 
> please say 
> so.  Maybe there's another 50 hp in here.  Maybe 51.  Or not.
> 
> Cheers,
> Joe
> '72 Spider, PIR slut again in a month
> '72 Berlina.  Klaatu barada nicto.
> 2002 Eudora, which warns me against "don't pretend," 
> "nipples," "slut" and 
> "sucked."  Thank yew, software.  "Don't pretend??  There, 
> I've said it again.
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