2020 Mazda MX-5 Miata (ND2) 1:33.585 at Harris Hill Raceway (H2R) - CCW
66
Published 2023-06-11
It took me a while to find a good time to mount them - been busy with life lately. And since they are brand new day 1 tires, I decided to give them a try with the tire pressure specified by Michelin, which is at 29psi cold.
I did around 3 laps in the morning with the Michelin-spec tire pressure, and the car feels very vague at the limit. The low tire pressure made the tires feel greasy all the time (seems they can hold a lot more slip angles than I'm used to), and combined with my current setting for XIDA coilovers, the Michelin-spec tire pressure makes the chassis significantly squishy and unpredictable due to the movements. It could be just me but honestly, I prefer the Cup2s with at least 35psi, and I usually set them to 38psi hot to prolong the life of the tire shoulders.
On the "new" (2nd track day) G-Loc brake pads, honestly, they are a step up the Porterfield R4. They are able to maintain decent torque for more laps. However, even though G-Loc acclaims them to uphold extreme temperatures, I can still make them fade on the 3/4th lap going 10/10ths. When these are done, I will go straight to G-Loc's most aggressive pads to see whether it's even possible to not have any fade with my current setup.
The hot climate definitely makes the engine power suffer, and also takes a toll on the driver. Hence the slow(er) lap times in this video. However, the experience remains very exciting and I can't wait to be back out there in the Miata!
Bonus content - If you watch closely, there's a tractor on the field besides the track doing some farm work :D
*Complete mod list below*
Car is stock except:
Tire - Michlin Pilot Sport Cup 2 215/45R17 (fresh set, day 1)
Suspension - Supermiata Xida Coilovers with OEM mounts and single adjustable
Brake - G-Loc R12 (front), G-Loc R10 (rear), Castrol SRF (fluid)
Power - GWR RoadsterSport SuperStreet Axle-back Exhaust, Motul 300V 5W30 (engine oil), Motul 75w90 (gear & diff oil)
Lap time recorded with Dual Electronics XGPS160.