Remember, the overdrive units were made by LayCock De Normanville. A separate company that made overdrive units fitted to hundreds of different vehicles throughout history. They had a variety of ratios available for the choosing. Triumph chose several ratios for various model cars, with one for the Spitfire typically. 21% as I recall, though I'm not certain of it. Triumph was not above using one of the other ratio units in a Spitfire if that was what fell to hand in assembling it. Seems to me the 28% was the most common alternative unit.
Now, with several decades passing, many overdrives from cars such as Volvo and such have been fitted to Spitfires, further muddying the waters regarding the particular ratio of a unit in hand, or mounted on a given car. >>> "James Carruthers" <[EMAIL PROTECTED]> 04/03/04 12:12PM >>> Can someone clear up what are the proper ratios for the d & j type overdrives? I have the figure of 0.8 - but the Haynes manual gives me odd numbers that I don't understand. It also has the MkIV in there twice - both as D-types - but the MkIV also had a J-type at the end of its life - which isnt mentioned. Can someone give me some definite figures? ----------------------------------------------------- The information contained in this communication may be confidential, is intended only for the use of the recipient named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication, or any of its contents, is strictly prohibited. If you have received this communication in error, please re-send this communication to the sender and delete the original message and any copy of it from your computer system. Thank you. ----------------------------------------------------- <<<<GWIASIG 0.07>>>> *** http://www.team.net/the-local *** Your messages not reaching the list? Check out http://www.team.net/posting.html *** unsubscribe/change address requests to [EMAIL PROTECTED] or try *** http://www.team.net/cgi-bin/majorcool *** http://www.team.net/mailman/listinfo *** Archives at http://www.team.net/archive *** Edit your replies!
