Gee, it’s been over a year since I’ve posted anything in the Garage section.
My latest modification has refreshed the car with more zip.
Last week, with fantastic and much appreciated help from Reggie & Guy, my NC had a 4.1 diff fitted to drive it out of corners a little quicker.
I managed to pick up a second hand crown wheel and pinion out of an automatic NC. Guy gave me his old diff which was sent off with the CW & P to a diff specialist to have it setup properly. Then with the help of Reggie & Guy, we pulled out the old diff and fitted the new one. My old diff goes back into Guy’s “rotatable pool” of spares.
Even with Reggie’s hoist, there’s a fair bit of work in the swap as you need to disconnect the rear suspension to remove the drive shafts. It took around four hours, not counting a trip to pick up another hub carrier as the bushes in my old one were broken.
It’s going to take a little time to get used to the higher revs in each gear. 6th now is around 350rpm more than the old 3.6 diff was at the same speed and at the moment I find myself wanting to change up to the imaginary 7th gear.
All in all, this is a worthwhile modification for the NC. By finding an auto diff and getting the CW & P set into your old housing, the cost is about half that of buying a complete 4.1 second hand diff.
It worked well at the Clubs skid pan day propelling the NC to a win against all comers in the “non-competitive” slalom knock out event at the end of the day.
