Harley, don't be mistaken, the car is very usable as it is and could easily be used every day . The exhaust is the first thing I'd change, it could do with a second silencer.

The LNA box is one of the lowest geared versions of the G-type box so there are plenty of better possibilities. It's very hard to know which box would be best without trying them. The closer ratios of a 5sp would be an advantage, the BMW engine is 'peakier' than most car engines, and has a definite step up in power at around 5000rpm, so closer ratios would give optimum acceleration.
It would be nice to have a much higher top gear for economy, but if I got it too high it might turn out that it wouldn't pull top, so end up worse.
But this is just nit picking in search of perfection, it's really not bad as it is.

The input shaft is standard LNA, as is the whole box, unfortunately the spline pattern limits me to using the 2CV/LNA clutch.

sweet as tits

How about this clutch from MECA

It's reinforced, more rigid, i don't know if it will make a difference, but i bought one;)

Harley

Harley,
do you know which part's reinforced?
Maybe the price, as it doesn't look much different from any standard plate I've seen...

ken

Hmm, doesn't look too special, let me know if it's any more impressive in the flesh.

If nothing uprated enough can be found on the shelf there are two possibilities I considered.
Modifying the flywheel to take the clutch from a bigger engine and fitting it with the splined center from the 2CV friction plate.
Making a twin plate clutch using a standard pressure plate with two friction plates sandwiching a 'floating' steel plate.

What about this?

http://www.ecas2cvparts.co.uk/-c-2_197.html

'Clutch friction plate only, sintered metal, paddle type. See important notes.

Only used on racing 2cv, because sometimes at higher revs. the gearbox can be prone to leak at the input shaft, this friction material will stand oil without breaking up.

This plate will cause very quick wear on flywheel face and clutch cover plate face.'

Not sure that's exactly what I need. I'm not sure of the advantages of 'paddle' clutches, but I think the requirements for a racing clutch, and one which has to deal with a lot of torque, are not necessarily the same.

Joolz,
would machining a small amount off the surface to which the pressure plate is bolted have any benefit?
I'd have thought that compressing the springs more would giving extra 'grip' on the driven plate.
You'd have to be careful not to overdo it though, otherwise there might not be enough movement available to disengage the clutch...

ken

( p.s. Or even change/pack the springs if it was a coil spring clutch, as I've just remembered how the wet multiplate clutches on motorcycles were set up and adjusted? )

The 'paddlestyle' clutch should have a bit more pressure on the frictionplate, never tested it myself, but heard others about it. Also this old type clutch is a bit harder to regulate; it's more on/of, new (diafragm) clutch is smoother. Also the old ones need a bit more legpower to oprerate

greetzzzzzzzzz

Rusty

Changing to an old style clutch with stronger springs had occurred to me. The standard pedal is so light compared to other cars, it wouldn't be a problem if it was a bit heavier. But I think a diaphragm type is preferably if possible.

I haven't looked to see what uprated versions are available yet, it's not a priority at the moment. For the time being I think I'll just make sure that I have a spare friction plate to hand just in case, and if changing it becomes regular enough to annoy me, then I'll look for something stronger.

I have got three gear boxes on the floor for my convertion to Bmw power.. On the one with a scrol on the input shaft if I lock one disc and turn the input shaft 21 turns the other disc will turn 8 full turns in 4th..On one box if I do the same the free disc will turn 7.5 turns this is off a 2cv so is probably doing 72 mph at 5770 revs .. On the third box which is a 4 speed big discs 3 lots of 2 studs on the output shaft the free disc turns 10 full turns so can some one tell me what engine revs my beemer will be reving at 72 mph