Great work, Karl. I just had to run out the garage to re-measure mine, even
though the carb is off the engine now. I'll make a small amendment to my
original 3/4" and say that it is maybe 7/8", but certainly not 1 5/8". Mine just
doesn't visually seem like the same offset as in Paul's pics. Even looking at
the top of his air filter to the top of the valve cover it seems that they are
nearly level. My air filter definitely stood up higher.
Dave Moag has sent in his estimate of 1 1/4" for his Cannon manifold offset. It
would appear that the Cannon may have slightly less droop than the Pierce but
more than mine. If I can get a confirmation from other Cannon users, I'll settle
on the Pierce on get one on order. Ouch! $159.
Many thanks, Karl, for your extra effort.
Vic W.
"Karl J. Schmitt" wrote:
>
> Vic, just went out to the garage and measured the off set more carefully.
>
> Using a small 9" torpedo level, with one end resting on the machined top of
> the block, adjacent to #3 cylinder, and angled out and back towards the
> firewall, so that it is located over the #4 intake port (siamesed #3 & #4).
> Then, at 7" out from the cast aluminum valve cover I measure a drop of
> 1.5/8" (1.625"). And my measurement is accurate within 1/16", or better.
>
> The manifold is a Pierce with casting number 15-1952 embossed on it.
>
> I have the "6-clip" air filter you refer to.
>
> The pic you are referring to is for a DUAL CARB SET UP. The pic I am
> looking at shows a single carb on what can be described as a simple
> "U"-shaped manifold.
>
> Now go to http://www.teglerizer.com/triumphstuff/bs_engine.htm
>
> In my notes there was a n underscore "_" between the /bs_engine.
>
> Now here is shown the "drooping manifold".
> Also, note the siamesed ports, 1&2, 3&4.
>
> Let me know if all this helps. Also, my Weber equipped engine runs a lot
> better than it did with the Single Stromberg.
>
> Thankyou, Karl J. Schmitt kjschmitt@jcn.net
>
> -----Original Message-----
> From: Vic Whitmore [mailto:vicwhit@home.com]
> Sent: Wednesday, August 30, 2000 7:10 PM
> To: Karl J. Schmitt
> Subject: Re: Weber installation
>
> Hi, Karl. Thanks for the feedback. I have looked at Pierce, and even called
> them. The guy said there wasn't much difference between his and Cannon.
> Maybe
> there is more than one version of the Cannon.
>
> >From your description of the air filter, it sounds like yours is very
> similar to
> mine, if not the same. It is a stock Weber filter assembly that uses 6 clips
> to
> hold the top chrome piece on.
>
> On your next message, you say that the offset is about 1 1/2". I just need
> to
> know how/where you measured this. I measured mine from the top of the intake
> tube (AFTER the flange on the engine end), to where the tube flattens out
> back
> into the horizontal again.
>
> I really hope that your measurement follows this because that really would
> help
> to understand why mine does not work. Mine offset is only 3/4". If I had
> another
> 1/2" it may fit with a clearance similar to yours.
>
> Here is Paul Tegler's web page with his DGV jetting:
> http://www.teglerizer.com/dcoe/dcoedata.htm#The DGV numbers
>
> Note that the pic of the DGV has a manifold with only two ports. This isn't
> for
> a 1500 as far as I know. The 1500 has separate inlets for each cylinder. I
> never
> have asked Paul about this pic.
>
> Good luck, and thanks again.
>
> Vic W.
>
> "Karl J. Schmitt" wrote:
> >
> > Vic, I have an early 80's Spitfire with a Weber DGV kit as supplied by the
> > Roadster Factory some 6 - 8 years ago. Included was a manifold and
> filter
> > ( about 1.7/8" high) and the assembly fits just fine. Not much clearance
> > under the bonnet, but enough. Best as I remember it, about 1/4" or so to
> > spare. I also have a custom exhaust gas header, also purchased from TRF.
> > Most of the manifolds are built by Pierce Manifolds in Gilroy, CA .
> > www.piercemanifolds.com Not sure of the "S" in manifolds.
> >
> > As to operation, mine works just fine, with an occasional stutter when
> first
> > accelerating.
> >
> > I suggest you take a real close look at your installation.
> >
> > Now, I am interested in the jet set up suggested by Paul Tegler. Can you
> > send them to me.
> >
> > Thank you, Karl J. Schmitt kjschmitt@jcn.net
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