Mailing List flyrotary@lancaironline.net Message #21460
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Static MAP readings?
Date: Thu, 5 May 2005 17:43:29 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
Interesting.  When I purchased my 2900 TWM webber (4 injectors) they had 50mm (2") and larger throats available.
 
Ed A
----- Original Message -----
Sent: Thursday, May 05, 2005 5:17 PM
Subject: [FlyRotary] Re: Static MAP readings?

It’s a TB made by TWM induction; http://www.twminduction.com/

 

BTW; Rusty, what diameter barrels on your TB?  Mine are 44 mm, which could be great for automotive street or racing), where idle transition and throttle response are more important.  For aircraft I do believe that a bit larger would be better. 

 

Hi Al,

 

I've measured mine a number of times, and I recall that they're essentially 1-5/8, which of course works out to about 41mm.  The TWM site only lists 40 and 42 for the 2900 series, so I'm not sure exactly which one I have.  I got it from Atkins originally, with the wrap over manifold, so I got whatever he was sending out.  

 

Rusty

 

 

 

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