Cortina Mk2 - 5 speed box
Posted 29 June 2008 - 03:33
Posted 29 June 2008 - 11:33
There was a Hewland conversion, I think, to make the early Ford 4-speed into a 5-speed, but it was a fragile thing as far as I remember.
Posted 30 June 2008 - 10:07
Following excellent reports on the Hewland 5-speed gearbox I ordered one in Febuary 1963, for my Cosworth F.J. engined Lotus 7 and took delivery a month later ................... further details from Hewland Engineering, 9A North Town Road, Maidenhead.
Posted 30 June 2008 - 10:26
Posted 30 June 2008 - 13:58
Bob Martin broke it, it didn't last long at all.
Posted 30 June 2008 - 15:12
Posted 30 June 2008 - 15:22
Lotus made a new gear casing to put the 5 speed gear clusters from the Austin Maxi for the post '73 Elan +2 130/5 and the 'New' Elite/Eclat
Posted 30 June 2008 - 21:47
Posted 01 July 2008 - 16:05
The final mention in this section goes to a component rather than a specially modified car. In 1966/67, "Hewland Engineering Ltd." of Maidenhead, produced a five speed Cortina gearbox - later to be built and sold by C.T.Wooler ( Engineers ) of Wembley.
The box was developed for race use and resulted from a demand from Cortina, Cortina Lotus and Lotus Elan drivers who used their cars for motorsport. They found that the gap between second and third on the standard box made life a little awkward when coupled to their tuned and often "peaky" engines.
Using the original cast-iron gearbox casing, the Hewland engineers went about the task of fitting five gears whilst retaining the format of a three shaft, constant mesh box. Space within the casing only allowed for a face-dog, non-synchromesh gear engagement system to be used. The lack of synchromesh is compensated by the extremely close ratios of the gears and provided an astoundingly fast gearchange, ideally suited to racing. Hewland used helical gears ( A first for Hewland ) as a compromise between the much needed strength for competition and a reasonably quiet operation for everyday road use. C.T.Wooler used light alloy casings in production (Including bellhousing and tailshaft housing ) and developed their own remote control assembly, also in light alloy.
I found this on a website on Cortinas.
Posted 01 July 2008 - 17:55
Posted 03 July 2008 - 09:00
Posted 31 July 2008 - 08:00
Posted 31 July 2008 - 11:38
That Hewland cluster was pretty fragile I think and, even when used on smaller-engined Anglias, was a full rebuild after every race?