Race Tracking Your Supra - Information exchange

[TBK]

ALso, this track COOKED my PMU CR fronts. They crumbled when I removed them.

How many days/laps did the PMU CR fronts last? Overall thoughts? Very likely going to be my next pad

Sponsored

 

[Rizen]

More CMP photos from a new friend, someone @DC5UPRA supra brought along.

ALso, this track COOKED my PMU CR fronts. They crumbled when I removed them.

Car looks good.

CMP is very tough on brakes. I have been running CSG C21/C11s and they had no issues, I've run CMP twice this year. FWIW.

 

[DC5UPRA]

Car looks good.

CMP is very tough on brakes. I have been running CSG C21/C11s and they had no issues, I've run CMP twice this year. FWIW.

How much of the pad would you guess was used in a weekend?

 

[Rizen]

How much of the pad would you guess was used in a weekend?

My current C21s in the front have been on the car for 3 or 4 events, and I feel like the pad depth has barely changed. I haven't measured the depth, I should grab a set of brake pad calipers to actually chart it.

Wear starts off slow and then accelerates as the pad thins, though, I presume due to increased temperatures.

The pads will probably last me about three-quarters of a season, and I have been running eight to ten events a year. This year, I did six Gridlife weekends and the SCCA TT at NCM and CMP, and I will be running at Pitt Race (TT Nats).

 

[Evolution]

How many days/laps did the PMU CR fronts last? Overall thoughts? Very likely going to be my next pad

Skip the CR and go straight to the 999. Way better of a pad with no downsides to the CR.

 

[tomfree]

CMP is very tough on brakes. I have been running CSG C21/C11s and they had no issues, I've run CMP twice this year. FWIW.

Yep, Rizen is right. I've done endurance stuff here with Lemons in several different cars, time trials, and a couple of HPDEs. It's pretty brutal on brakes, regardless of the platform.

I'll assume you guys enjoyed the kink. It's a great equalizer, and a fantastic way to set up a pass for that next left. CMP is such a fun (and relatively forgiving) track to race on. Lots of opportunities to exercise your racecraft and set up a pass.

 

[DC5UPRA]

Skip the CR and go straight to the 999. Way better of a pad with no downsides to the CR.

That's the plan next, 999s.

 

[Rensuhlo]

I'll assume you guys enjoyed the kink. It's a great equalizer, and a fantastic way to set up a pass for that next left.

You could say that, lol

 

[i3igpete]

Skip the CR and go straight to the 999. Way better of a pad with no downsides to the CR.

The toyota engineering club team that campaigns the endurance gr corolla buys pmu 999s from Blackhawk Japan just like the rest of us

 

[Subydude]

CMP being my home track means I'm also going to say it's rough on brakes. If your car can do 20 minute sessions and not cook the pads at CMP then you've solved any brake problems you'll have going forward.

The wear rate is roughly double that of VIR or Road Atlanta.

I took my Supra to Charlotte Motor Speedway yesterday, and with the "new" chicane setup used for track nights I think it's close to CMP for brake wear. Lots of blasting down a short straight only to scrub off a ton of speed into a bus stop, then right back on the Roval. I had gotten wheels/tires from TireRack and evidently they don't use the same high adhesion wheel weights I do so the weights all melted on the front wheels after the first session. Luckily I had brought the stock wheels/tires so I swapped to those.

I honestly think CMS is a reasonable track to run now with the way it's setup. It used to be a snooze fest, but the chicanes really break up the Roval and make it more challenging. I'd done a champcar race there prior without the chicanes and it was considerably less fun vs CMP.

 

[Subydude]

Cross posting here for visibility.

https://www.supramkv.com/threads/fu...nics-internal-fault-error-at-track-day.32039/

Seemed like an odd issue. I was expecting it to complain about fuel starve or something, but a controller overheating was odd.

 

[DC5UPRA]

CMP being my home track means I'm also going to say it's rough on brakes. If your car can do 20 minute sessions and not cook the pads at CMP then you've solved any brake problems you'll have going forward.

The wear rate is roughly double that of VIR or Road Atlanta.

I took my Supra to Charlotte Motor Speedway yesterday, and with the "new" chicane setup used for track nights I think it's close to CMP for brake wear. Lots of blasting down a short straight only to scrub off a ton of speed into a bus stop, then right back on the Roval. I had gotten wheels/tires from TireRack and evidently they don't use the same high adhesion wheel weights I do so the weights all melted on the front wheels after the first session. Luckily I had brought the stock wheels/tires so I swapped to those.

I honestly think CMS is a reasonable track to run now with the way it's setup. It used to be a snooze fest, but the chicanes really break up the Roval and make it more challenging. I'd done a champcar race there prior without the chicanes and it was considerably less fun vs CMP.

Good to know. Haven't done CMS cuz I always heard it wasn't worth the risk (walls).

 

[Subydude]

Good to know. Haven't done CMS cuz I always heard it wasn't worth the risk (walls).

No different than NCM in my mind for walls. There are a few sections with basically zero runoff before a wall but it’s also generally not a place you should be out of control if you have any semblance of experience. NASCAR banking is always a hoot though, but can also be intimidating given the consequences of pushing too far there.

It‘s worth a track night to try and is more fun than Gateway (WWTR for the new name) or Nashville super speedway.

 

[Islindur]

Classic 992 crowd around here, they r all 1 class above me. Insanely fast car stock. And top drivers can land within 1s of officialy set track times in pro tests so yeah, some ppl are pretty fast

Im trying to get close to top of them by susp/aero mods while keeping 445whp (so bit worse p/w than 992) and staying in my class.
If i run full slicks and did 700whp then sure i'd be faster easily but thats 0 challenge, going for power wars, its like a shortcut (+this type of power places in class with stripped gt2rs so gl there). Trying to squeeze as much as possible from the chasis is more difficult but more rewarding imo.
For now season did kinda mess up coz 2day Lausitzring n Balaton are canceled... so a brake for now.

 

[razorlab]

700whp then sure i'd be faster easily but thats 0 challenge, going for power wars, its like a shortcut

If that was actually true then anyone going to a track day with a viper, ZL1 1LE, Z06, McLaren, etc would be fast. We all know that is very untrue.

Driving a powerful car fast takes time and skill.

Honestly, some days I miss a stock power Supra. You can just mash the gas without thinking/worrying about it.

Sponsored