[Zmagnette] Stub stacks

Kelvin Dodd doddk at mossmotors.com
Fri Nov 15 11:26:00 MST 2013

The point is that if you smooth out the air flow at the transition from filter plate to carburetor throat, more air can pass since there is less effective constriction caused by the edge affected air flow.

On this note. Once you do have your MG engines tuned up and happy. Moss has been working on a cold air intake with integral ram pipe design that was recently approved for production.

This was primarily developed for the MGA and MGB, but would probably fit nicely on a Magnette.  I’ll get more information to the list when the project is finalized.


From: zmagnette-bounces at autox.team.net [mailto:zmagnette-bounces at autox.team.net] On Behalf Of Wayne & Isabel Hardy
Sent: Friday, November 15, 2013 9:16 AM
To: Michael Anderson; List for the Z Magnette Group - North America
Subject: Re: [Zmagnette] Stub stacks

Well funny thing is that several automotive engineers and motor builders have done a lot of work with flow benches and the like, (D. Vizard for one) and have shown that these properly built Velocity stacks will INCREASE flow into the carb mouth..ie allow MORE air in, not just smooth it out. I don’t have my flow measuring devices any more, but don’t question what the engineering elves like David Vizard say on this matter.

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