Slow Car Fast
July 17, 2010 - Okay, there's that done.
The black bumper was painted, then sanded down again and painted again. I learned a huge amount about sanding on compound curves, surface prep, paint gun setup and the general unforgiveness of shiny black paint. But now I'm in pretty good shape to paint the MG. Not that I'll remember any of this when it comes time to paint! I also made a trip back to Canada for a week or so.
But now it's time to get cracking. I have to drop a differential off at the drivetrain shop for work, so I figured I'd bring the Camaro and MG axles in for their diff swap at the same time. I don't know how to set up a rear end and I'm happy to let someone else do it for me. So I jacked up the Camaro and had at it with the tools. An hour later, the rear end was free in the driveway.
Note the very large boards underneath the jackstands, this car is not going to sink into the gravel, fall off the stands and kill me.
entry 353 - tags: Camaro, differential, rear axle, paint
July 17, 2010 - Here's a peek at the differential from the Camaro.
In 1998, the Z28 came with a Positraction differential. In 1999, that was changed to a Torsen. This is a Posi, although I do have to admit to resorting to Google to make sure I wasn't looking at some sort of Phantom Grip nastiness.
Miatas used Torsens from 1994, and it's a great differential. Very easy to drive. But the V8 cars we've been building at Flyin' Miata have been using a differential from a Cadillac CTS-V, and I've been very impressed with their ability to lay down power. The theoretical increase in turn-in understeer hasn't been a problem. I'm pretty sure it's a very similar Positraction to this one. So I'm happy that my donor came with this unit.
entry 354 - tags: differential, rear axle
August 4, 2010 - More welding.
It's hot and dirty work doing the fabrication and welding in the engine bay and under the car, but I'm gradually getting through it. The engine bay is almost completely paneled now, but I still have to do some finishing. Then it's underneath to finish up some frame rail work.
I did pick up the rear axle from the driveline shop today, though. All new bearings, all set up with the Positraction rear. All I need to do is stick the axles in, mount the brakes and voila, that's done. It wasn't a cheap visit to the driveline shop, but at least I know everything's done right and I shouldn't have to do anything to it for a long, long time.
entry 359 - tags: axle, differential, fabrication