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FIA regs

Subject: FIA regs
From: "Jack W. Drews" <>
Date: Mon, 09 Jan 2006 20:00:46 -0600
Thanks to all who responded to my question about FIA regulations.

I have a customer who is asking about the regulations concerning 
Webers and two inch SU's.

Christian Marx sent me a copy of the FIA homologation papers for his 
TR4. The papers state that dual Weber 45 DCOE carburetors are an 
optional feature recognized by FIA.

I haven't heard any mention of 2" SU's. I am skeptical about the 
benefits of running the two inch carburetors, and Richard Taylor 
confirms that the low rpm performance is not as good as would be 
expected.Current SCCA regulations allow two inch SU's on Triumphs, 
but I don't know in what year that came into being.

uncle jack 

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