a good, cheap, bolt on, over the counter first upgrade is a vanette clutch. A new Daiken unit will cost about $90 retail. Designed to lug around 1400 odd kg, it has a higher clamping force - not sure of exact spec though.

Just spoke to steve newing from speedtech and said he used the same factory daiken nissan clutch for 11 years. The one with the beige coating. Now Im stumped on how this supposedly new pbr clutch is available for sale since I killed it so easily. Ill take steves word he should now after so many titles.
He said he picked up a bundle of them from the wreckers and used them with a cro-moly flywheel all that time.

the clutch should work,as the input shaft splines are the same,is that a 4 or 5 speed you've got.use the throwout bearing housing that came with the box,as this is longer on the 60 boxes.

Going for a centreforce clutch with a sunny e speed 60a but dont know which model to use. The site has listings for the b210 but not sure if it means 56a box instead of 60a?

[url=http://128bitencrypted.com/centerforce/2001catalog/centerforceresults.tpl?db=2001catalog.txt&eqmakedatarq=NISSAN-DATSUN&eqMODELdatarq=B-210&yeardata=1978]