Basic Air Filter swap for the E9X M3. I chose the aFe Pro Dry S for both increased flow & filtration. No significant power change expected. I prefer dry filters to oiled ones for simplicity. The car was new to me at ~25,000 miles, and wasn’t sure when, if ever, this had been done. Requires:…
Off the bat, new wheels for the M3. The stock wheels are a very hefty 19×9 & 19×10, and with the current FS allowance, we are allowed to go up or down 1″ in wheel diameter. Obviously, 18s are the way to go here, and the ARC8s are a very good looking, similar to OEM…
Decided the previous color, charcoal mist, was a little too dark & too blue in certain lighting. This time went with a more hyper silver/silver look, decided that would be more neutral than the previous color. They look good, much better than before, and I think look much better on the white. I coated them…
Went ahead and installed the ST43s today to wear in at the 4/15, 4/22, 4/29, and 5/27 autox events in the Evo. I had leftover titanium shims (!) from Girodisc that I added with them. These are from the soft-brake fiasco in 2016. The shims didn’t sit flush with the back of the S/S brake…
A number of projects lined up for the offseason: The largest of which was upgrading the evo’s brakes to Evo X Brembos, which use a much larger rotor (320mm to 350mm). The caliper, pistons, etc. remain largely the same but the braking is vastly improved by this swap. I went with the same DBA5000s &…
Finally got the RaceFab wet sump installed. The Racefab wet sump is a heavily modified stock Evo oil pan. The wet sump comes with built in baffles, trap doors, and 2-2.5 extra quarts of capacity, making the total about 6-6.5 qts. It should help oil pressures in high-g right hand turns, which is more commonly…
Having removed the front bumper in order to access the oil cooler, I decided it would be a good time to also swap in STM’s lightweight front crash beam. This was an easy 5.5lbs of savings directly off the very front of the car, while still providing decent protection up front. Since there are a…
For one of the final pieces of the evo’s track prep, I decided it would be prudent to install an oil cooler, to keep the oil in it’s optimal temp range during these hot lapping sessions. After doing some research, I decided to go with a Setrab oil cooler, one of the top names in…
Part 2 of the new wheels – OEM X GSR wheels to use as track wheels. I would be running the 265 width for SCCA autocross, but the limit for AWDs in street and most enthusiast classes for track were 255s. The X GSR wheels ended up being a good compromise that would be relatively…
The other required part of swapping to the Evo X brakes was upsizing to 18″ wheels. There was pretty much only one set of wheels I wanted, which was the CE28N in 18×9.5. After much research, it seemed the only offset that would really work well would be the 18×9.5 +34. The +28 would be…
QL Motorsport & Car Journal 