[Fot] Cold Air intake on a Spitfire

[BillDentin at aol.com]

In a message dated 11/07/2013 11:49:43 AM Central Standard Time, 
tony at tonydrews.com writes:


> I don't see any other responses, so I'll jump in with partial info - 
> I can't help with "one hose or two hoses".  However, the closed box / 
> open box...  If you do a closed box and it manages to build up 
> pressure, it will change the fuel mixture in the carbs.  Most folks 
> get cold air to the carbs but have the cold air box / plenum open at 
> the back so pressure doesn't build.  I did something of the sort on my 
> TR-4, but don't have any real way to measure whether it does any good or not.
> 
Amici...

Our Tornado Thunder Bolt had a gorgeous and very British engine bay, which 
included a cold air box ducted to get air to the carbs.  But, as Tony points 
out, it too did not work for crap until Bob Wismer and I drilled holes in 
the back of it to allow air to flow cleanly through.

Bill Dentinger