Putting a 440 gearbox into a 480 - how I got on.

[heavend]

Had no choice but try - and it worked OK. The final dif ratio seems fractionally higher (it's a box from a 2l 440, going into a 1.7 480) which I feel is an advantage, as the car was a bit buzzy with revs on motorways.
The speedo pickup was the only hurdle - the 480 is electronic and the 440 mechanical - i.e. cable driven. Without the electronic pickup connected you get no speedo/odometer or info centre operation that needs speed or distance to calculate - e.g. miles per gallon. I remember someone asking if they could be converted, and the simple answer is no, because of the different arrangements within the 'box. I have come up with a simple solution that uses an external encoder and the original sensor to get full operation of the speedo functions. I would be prepared to email a picture or supply it as a kit to anyone who needed to go down this path to keep their 480 on the road.

[Ettore Bugatti]

I thought the B20F had the same diff ratio's as the B18Xs. Only the turbo had a gear ratio which is 10% lower.

Please, show us the pics.

[heavend]

You might be quite right regarding the diff. ratio. Please note that I wrote that it seems lower revving at motorway speed. I would have liked to have known for sure before I started, as it was one of my concerns. Haynes book no help.
I can't do pictures at the moment, (cameras & card readers stolen in a burglary last week) but if you supply your email address I'll forward them once they've been replaced.

[shimon340]

hi

I'd be interested in some pics of the speedo solution you came up with

[heavend]

I've had my camera replaced, so can do. Please supply your email address & I'll forward some pictures. I find it's a bit of a pain to get pix onto this forum..