Chuck:
The area at the base of the center of the windshield is actually a high
pressure area when the car is moving, and is a good place to get high pressure
air. If you louver that part of the hood, I suspect that the flow through the
louvers may well be 0 or even reversed because of this high pressure area.
You may recall GM using an option called "Cowl Induction" on their
muscle cars of the late 60s/early 70s. This was a bulge on top of the rear
portion of the hood, that allowed this high pressure area to feed the
carburetor. It was very effective, even though it was counter intuitive. Naive
hot rodders thought that a scoop should point forward into the oncoming air,
and not "backwards". I don't know why it isn't used any more, other than the
possibility that it makes the styling of the hood look a bit odd.
Cheers,
Vance
-----Original Message-----
From: owner-6pack@autox.team.net [mailto:owner-6pack@autox.team.net]On
Behalf Of Chuck Arnold
Sent: Thursday, January 15, 2004 4:42 PM
To: Fot@autox.team.net
Cc: 6pack@autox.team.net
Subject: RE Louvered Hood
This brings up a topic I have not seen discussed. I would like to tap
the collected wisdom of the lists:
I have triple Webbers on a TR6. It is under rebuild [it is winter after
all]. One of the modifications I have made is to add a two sheet
aluminum baffle under the carbs to both shield them from the exhaust
pipes, and to provide a place for colder air. I have added a vent to
the grill and a 3" pipe to push air to the front edge of the carbs on
top of the baffle. Now the question:
Will adding louvers over the carb intakes help suck cool air through the
vent? Would I achieve the same thing by just keeping the hood open an
inch [I was thinking of doing this and do have the safety catches in
hand. An engineer friend said that would do no good because of the
"dead area" at the base of the windshield].
Would appreciate any comments.
Chuck "Triosan" Arnold
-----Original Message-----
From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net] On
Behalf Of Bill Sohl
Sent: Thursday, January 15, 2004 3:13 PM
To: Herald948@aol.com; "Randy B. Williams"; fot@autox.team.net
Subject: Re: TR 3 Louvered Hood
Randy,
Andy is correct. In searching for a place to do
louvers, check out your local speed shop for
a recommended shop. The hot rod crowd uses
louvered panels quite a bit.
Ironically as to your search, I do have a louvered TR-3
hood that I obtained about 15 years ago. It's not
for sale. The louvers on the hood were clearly done
after the hood was manufactured.
Cheers,
Bill Sohl
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