Quick update on the 915 upgrades. After a lucky turn of events (didn't have to tear down the 3.6 after all) I was able to complete the upgrades today. I am in awe!! Gone is the squealing noise when pushing the lever too far into 2nd. This was definitely the loose stack on the main shaft starting to interfere. Even before the upgrade the transmission shifted fine. For good measure we flipped the synchros and installed a brand-new 3rd/4th operating sleeve. The dog teeth on everything were perfect. The synchro profiles were still symmetric with minimal wear, no bald spots.
The Wevo stuff sure makes a world of a difference in how the shifts feel. I first test-drove the car with the internal gate shift installed only. The gates weren't as restrictive as what other predicted. I've heard people comparing the feel to that of and old Ferrari with the gates on the shifter cover and that you have to develop new muscle memory. Not true IMHO, it felt pretty transparent to me.
Today we dropped in the Wevo shifter and coupler and replaced the tunnel bushing. All I can say is WOW. The shifts are now super-predictable and everything feels great. I really like the definition of 3rd/4th. No more sloppiness. Does it shift like a modern gearbox? No, I can still feel the synchros because it's a 915. And I like that. I usually allow time for them to do its job before fully pushing into the next gear. But the precision and location of 3rd/4th plane is awesome. And no I get much more feedback from the transmission during the shifting process. And last but not least it looks cool, too:
And after getting all the dog hair vacuumed out.....
