I have a set of 42DCOE's on my street TR-4. I am using a Kastner 'D' can
with about 10:1 compression. The engine really screams at high RPM's, but
tends to pop and sputter a bit when driving around town.
The manifold which came with these carbs has the carbs located at a 14
degree angle up from horizontal. I've been told by a friend that according
to some of the manuals, Weber carbs should be mounted at no more than a 5
degree angle up from horizontal. In fact, my friend modified his manifold
to get his carburetors down to exactly horizontal, and this seems to work
well.
Does anyone have any experience with the mounting location of Weber carbs?
If the 5 degree recommendation is correct, then why do the kits all seem
to come with a manifold which puts them up at 14 degrees? Modifying the
manifold can be a pretty major task. By the way, my friend says that when
mounted at too high an angle, fuel tends to drip into the manifold from the
force of gravity (he calls it 'Post Nasal Drip'). At high engine speeds
the extra fuel gets consumed, but at low RPM's the engine is overfueled.
I'd appreciate any thoughts or experience from the group.
-----Original Message-----
From: R. John Lye [SMTP:rjl6n@server1.mail.virginia.edu]
Sent: Monday, June 05, 2000 11:52 AM
To: Carsten Conrads
Cc: Matthew Wilder; fot@autox.team.net
Subject: Re: Need Weber tuning suggestions
At 06:23 PM 6/5/00 +0200, Carsten Conrads wrote:
>The best are 45 DCOE, but 40 DCOE runs it also.
Actually, as I've been told, the 42DCOE's are even better (but they
have not been made for a while, so they are harder to find).
John Lye
rjl6n@Virginia.edu
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