Did a 270 mile trip yesterday which puts me about 1000 miles driven total. I'll have to measure my alignment again but there's a couple things I'm going to need to change based on the tire wear I'm starting to see.
For reference I'm running
these tires in 225/45R17 at 24 psi all around.
After an hour of driving on new concrete interstates I could see buildup (possible graining) on the inner edge of the front tires and closer to the outer edge of the rear tires. I say graining but it could've just been stuff getting stuck to the tires rather than the tire wearing but it wasn't across the entire width of the tires. When ever I stopped at other points on the drive I didn't see buildup on the tires at all, I think it was just due to the new concrete on the interstate I had been driving.
Tire spec starts at 10/32". I measured tread at the inner/outer sipping grooves of all 4 tires. Side to side was consistent so I'll just list front/rear tire measurements.
Front
inner edge: 5mm (6.3/32")
outer edge: 7mm (8.8/32")
Rear
inner edge: 6mm (7.6/32")
outer edge: 6mm (7.6/32")
All measurement points were nearly dead on the mm lines so that's why I list it that way.
My initial alignment followed the DF suggested numbers and I know my front tires have more negative camber (top inward) than the rears. I'll be starting with measuring what I've got and checking front toe. My rear tires have some negative camber since I have BC coilovers and no camber bolts but with the even wear I'm happy to leave untouched. If everything is still where I set it, the rear has slight toe in as DF suggested.
A couple other notes for now:
I filled up in South Hill, VA, drove to Richmond, VA. Drove back to South Hill, VA and filled up again at the same pump. Alway running premium due to the supercharger. Took 6.5 gallons for 156 miles, letting the pump cutoff normally while clicked and hands off the handle. 24 mpg for that 156 miles. Track frame, hood, side panels, engine cover, no passenger to Richmond, did have a passenger on the way back to South Hill. Ran the speed limit which is 70 for most of the way and drops for a few miles and then also a few miles of 45 mph roads.
I'm still getting a pending P0300 code (random misfire) but it doesn't get another cylinder specific code. My new exhaust header keeps changing colors every drive, I took this before driving yesterday. Passenger side cylinder (I think this is #1?) has the ZZP logo which does change how the pipe heats. Spark plugs are new, coil packs are original, I didn't dive deeper than the valve cover doing the timing tensioner. I wonder if the different heat in cylinder #1 exhaust is indicating that's the random misfire cylinder. I've considered replace coil packs but they aren't real cheap and it seems to be running well.