Miata Mailing List: August 1993, Message #74
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   From: Mike Rother 
Subject: Re:  RE>Re: Snorkel to Pop-up (was Perf. Mods)
   Date: Tue, 10 Aug 1993 10:27:02 -0400


From: Al Jenab 
Subject: RE>Re: Snorkel to Pop-up (was Perf. Mods)

OK, OK, I've got an idea perhaps more sacreligious than pop up
snorkels.  How about cutting an NACA duct in the hood and
making a cold air ram box?  (Cringe in unison.)  I've got the
HKS intake, see.  I'd like to isolate it somehow from the
engine & exhaust manifold heat and force cold air in at the
same time.

I've been thinking about going to the junkyard and finding an
old hood, making the duct in it, and then fabricating an
aluminum box which encloses the intake on all sides (except the
top), and seals when the hood is closed.  I thought about it
while examining the engine housing of a plane I was riding in
the other day.  You could get more air volume than routing
tubing to the front grille (depending on the duct size) and it
would be cooler (no contact with engine compartment heat).  It
would also have little effect on the basic lines of the car
(unlike those 427 Cobra-esque hood scoops).  Well, am I nuts or
what?  -Al

I've thought about a hood-duct too.  The aire intake (stock or HKS
Power Flow) is just too hot.  Perhaps the new Miata ('94) will have
a rerouted intake?

Here's another option.  It is possible to run a straight snorkel off
the front of the airbox - ending with its opening just to the left
of the driver-side fan shroud.  This seems to be a much cooler area
- with considerable outside air coming over and around the radiator.