Webers just sound so much better :-)
In addition, unlike SUs, they are "set and forget" - they don't drift out
of tune, and they are less prone to wear problems. If they are set up
correctly, they are wonderful.
Mike
-----Original Message-----
From: Neil Cotty <neilc@tradesrv.com.au>
To: MG Mailing List (E-mail) <mgs@autox.team.net>
Date: Monday, November 23, 1998 10:01 PM
Subject: SU's vs Webers when converting a rubbernose
>Hi all,
>
>I've read quite a bit lately on SU's, Webers etc and I'm not sure why there
>are so many people out there with rubbernose cars converting to a Weber
when
>they could convert to SU's. As far as I'm aware a single Weber *may* have
an
>advantage at very high RPM's (3-5 bhp according to the Special Tuning
manual
>with other mods) but SU's have the advantage lower down, producing more
>torque - at least thats what I hear from many racers and the books I've
>read - but essentially overall performance is similar - power band is
>different. If you own a single carbed B why not replace them with dual SU's
>instead of a single Weber? They leave more space in the engine bay thanks
to
>the smaller intake, and are more 'original' than webers. They also look
>quite pleasant! I'm not bagging Webers (I'd love a pair of sidedraft DCOE's
>and a xflow head!) I'm just genuinely wondering why Webers are chosen
before
>SU's. Is it a supply issue or one of 'perception', as Webers are really
seen
>as performance carburettors..
>
>I'd like to hear some comments on this rubbernose issue. The Weber route is
>chosen far more often than the SU when changing from single carbs to
>increase performance (*without* other engine mods!! not talking about head
>work, headers etc) - I'd think you'd get similar performance by going to
>dual HS4 SU's on a std car. I've never experienced a late model rubbernose
>so I can't appreciate how 'impaired' they actually are. My GT is no
>bahnstormer even as std with 94hp, in good nick with dual carbs, a lot more
>has to be done to improve it's performance! Heck even my A eats it for
>breakfast! <G> Yes, it really does.
>
>Cheers,
>Neil.
>--
>Neil Cotty - Sydney, Australia
>1970 MG B GT / 1959 MG A 1600 Mk1
>
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