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Re: Overdrives

To: "griffco" <griffco@griffco.ca>
Subject: Re: Overdrives
From: mporter@zianet.com
Date: Fri, 28 Feb 2003 20:42:00 -0700
griffco writes: 

> Reading an old motor book - World Cars 1976 - I found reference to a marque
> PAYKAN made in Iran. 
> 
> It noted that it had optional Laycock overdrive.   What are the chances of
> those being the same as Spitfire overdrives?  And what are the chances of
> finding some of those in Middle East wrecking yards? ;-)

> The PAYKAN had a 4 cyl 1725cc, 64 HP motor with 5 crankshaft bearings, Zenith
> Stromberg 150 CD horizontal carb.

It's quite possible that the very earliest PAYKANs (circa 1967) had a d-type 
overdrive--original licensure for the design came from British Talbot. But, 
as time went by, more and more of the design was original and according to 
one website, by the late `70s, 98% percent of the parts were built in Iran.
> 
> Also noted that a Leyland Triumph Chicane, of South Africa had an optional
> Laycock-de-Normanville overdrive.

The Chicane was, effectively, a 2500TC, with a carbureted PI-spec engine. 
The overdrive was first offered in 1973, so it is likely a J-type. 

Cheers. 

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