jaf wrote:
Thanks for the compliment. Got lots of pics and happy to share.
For the diff I've had zero issues with the mounting design from a structural standpoint. It's been rock solid. The things that I have corrected since the original build is making enough room to mount a 1.8 Torsen diff, ensuring the mounting angle of the diff is 100% parallel with the transmission output, and providing a little more clearance for installation/removal.
I'll see if can update one of my posts to tell the story. Lots of lessons learned to share on that one.
I´m going 2002 1,8 Torsen (but started with a 1.6, which can be seen in the pics above, not much clearance to the front), and Bofi Racing poly bushings for the top .. I´ll probably go solid mount in the front, the worst that can happen is a cracked third member, which sounds unlikely .. If you haven´t had any problems with the weak 1,6 diff I guess a welded 1,8 should remain intact ...
Would love to see an update of your build thread!
One thing that has bothered my some over the years is the chart of miata uprights measurements and a-arm attachement points you posted in a excel screen shot a while back .. I tried to convert to metric (because living in Europe) and plot them in sketchup, but I couldnt get them to really match up .. I think there is something off with the rear part of the chart ..