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RE: DCOE Carbs

To: "'MG Group'" <mgs@autox.team.net>
Subject: RE: DCOE Carbs
From: "J. Michael Roach" <mroach@sockets.net>
Date: Mon, 22 Jul 1996 11:23:29 -0500
Good points.

In this case, the DGV I'm looking at is the 32mm/36mm progressive =
downdraft.  I'm not looking to race, but i *am* looking to make *a lot* =
of noise!

This car (1975 Midget [1500cc Spitfire engine]) is not a daily driver =
for me, it's for fun.  I believe I can make this Triumph engine whirr, =
but I'm not sure which are the correct mods to make.

Am I right in starting with the carb (since my ZS is leaking badly, =
anyway)?

----------
From:   Bill Lattimer
Sent:   Monday, July 22, 1996 11:16 AM
To:     J. Michael Roach
Cc:     'MG Group'
Subject:        RE: DCOE Carbs


> if your Midget is stock, then a DCOE is WAY TOO much carb
> for the engine. You'll have no power below 3000 rpm, it will
> probably only do about 19MPG and will genrally give awfull
> performance.
>=20
I don't know that I completely agree with this, since no sizes are=20
mentioned.  With a 40 DCOE and the proper size chokes, a sidedraft can =
be=20
a very streetable, responsive carb from off-idle to the top end - albeit =

with ~20% loss in gas milage.  I have a 45 DCOE on a TWM manifold with=20
36MM chokes, and this works very, VERY well - it is MUCH more responsive =

than the stock SUs.  Many of the bad experiences with Webers on the=20
street are due to improper tuning; IMHO, setup with a rolling road dyno=20
is required to make this work.

Agreed that the downdraft is probably a better choice, tho.



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