What's the big differences with the camshaft change?
And the dizzy? Is it just to get away from the EI? Or are the advance
curves drastically different?
I'm running a pertronix on the stock ('77) dizzy.
I know, I know, read every page of mgbexperience, teglerizer and
ntsource and all will be clear.
I'm hoping for an executive summary. :-)
smarc wrote:
>One of the reasons I decided to go with a single Weber DGV on my 80 B was
>that I was informed that unless I was changing the camshaft as well, there
>wasn't much reason to have the dual carbs.
>
>I've since decided that I'm not happy with the performance, and will go to
>the dual SU setup, but will be pulling the engine for a complete overhaul
>also, so changing the camshaft is a non-issue at that point!
>
>So, I'm now curious as to how much difference I might see by going to the
>dual SU's, all else (cam, disty, pistons, etc) being the same?
>--
>-----------------------------------------------------------
>Marc Siegel, Charm Net, LLC. eMail: smarc@abs.net
>Baltimore, MD http://www.charm.net voice: 410/361-8160
>
>-----Original Message-----
>From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On Behalf Of
>Barney Gaylord
>Sent: Wednesday, August 28, 2002 10:02 AM
>To: Taylor, Todd S; 'mgs@autox.team.net'
>Subject: Re: 70 carbs on a 80 B..
>
>At 08:17 AM 8/28/02 -0400, Taylor, Todd S wrote:
>
>>Has anybody ever installed 70 B carbs (dual SU's ) on a 80 B??? ....
>>
>
>Yes. Well actually it was a 76 B, but prretty much the same. Got the full
>tech session with 64 photos and notes right here:
>http://www.chicagolandmgclub.com/photos/carbswap_zs2su
>
>>If so, what do you need?? Carbs, manifold anything else that has to be
>>changed????
>>
>
>Complete carburetor set, manual choke cable, heat shield, intake and
>exhaust manifolds, and the exhaust head pipe from the earlier car, and a
>few other small bits. If you use the late model distributor the vacuum has
>to be tapped from the intake manifold, not from the carbutor. If you
>change to the earlier distributor (recommended) the vacuum gets tapped from
>the venturi on the rear carburetor.
>
>>Anybody have a 70 - 71 SU carb set and a manifold for sale??
>>
>
>Not I, but keep asking. The whole conversion set pops up occasionally
>after someone converts to a cross flow head (or a side draft Weber and
>headers).
>
>>Do you have to change the exhaust manifold too????
>>
>
>Yup.
>
>>Or am I better off using a single webber?
>>
>
>No way. The single Weber downdraft carb might be considered an upgrade
>from the single Z-S carb, especially if you toss the catalytic converter
>and the restrictive exhaust manifold in the process. But the twin SU's
>have a good edge over any of them.
>
>Barney Gaylord
>1958 MGA with an attitude
>http://www.ntsource.com/~barneymg
>
--
Paul Root
'77B
proot@attbi.com
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