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Well, yesterday was my first trackday. Totally stock except xpell and modesta coating.
Everything positive still stands. But the doubts, the trust issues, the feeling of inconsistency that I wrote about before are all gone.
Right of the bat, even in my rookie hands, everything fell into place. The car is a beast, fast, dependable, controllable, predictable, an extension of your body. A joy to drive !
But it does need a track to shine, to do what it does best.
- Perceived lack of punch in the upper rev range ?
Forget about it, it just rips, and sings, and screams angrily, and makes the hairs on your body stand up. It needed a trackday to open up. Even afterwards driving home sedately on the public road, the engine felt more alive, more raw than before.
- Inconsistency of the backend / RWS ?
Haven't noticed it on track. It just felt natural, telepathic, albeit quite a bit sharper than my previous C2.
Tyres do seem difficult to manage though, they overheat so quickly. Magic windows seemed to be lap 3 in a session and then quickly it drops off, starting to slip and slide in the corners, loosing braking grip and become very nervous in the braking zone, leaving you with a 3 - 4 second per lap deficit (on a relatively short +/- 4 km lap with relatively slow top speeds little above 200 kph, but a lot of hard braking zones into relatively slow curves).
But I only got to register 1.5 sessions with the track precision app (which doesn't seem to work very well, intermittent video and telemetry dropouts) before my smartphone memory was full, so not enough data to really draw definite conclusions from.
In conclusion:
Not only does the car shine on track, even with my limited skills, it makes ME shine, makes ME enjoy. It's a ME car, a true drivers car.
The PSM allows for ample slip angles before intervening and I don't think it will even keep you from spinning out if you commit big driving errors.
I really look forward to more trackdays, so I can learn more about the car, about driving it and becoming a better driver with it.
But my god, you are not getting your money's worth if you don't track it.
YMMV
Couple of questions.
Which tires was the car delivered with? Cups 2's or the Dunlap's?
How many miles or kilometers on the car before you tracked it? Your posts implies that after tracking its performance on the regular roads was more lively.
I'll go Occam's Razor on this one and agree with you guys on Tyre Temp.
I started off cold 1.9 front and 2.1 rear, and dropped .5 - .6 bar during the the day. I'd guess from very limited experience 2.0 - 2.3 hot is the window. Beyond that they start to feel greasy, braking zones get longer and very nervous, rear stepping out at corner entry and exit.
Car delivered with MPSC2. Plus 5000km on the clock before first trackday. Car sure felt more aggressive, more raw after the trackday. Have to say a few days later running an errant, I didn't feel that again, so it might have been a psych thing ?!
Originally Posted by DIM4
did you come in after warm-up to lower the tire pressure?
The things you describe are typically to much pressure in the tyres.
Originally Posted by 928cs
+1
What were your tyres pressure when hot?
Originally Posted by Daggie
I was there as well (with bccars's manual sister-car). The track (Zolder) is known to be heavy on the brakes and tires. It is definitely pressure related, as I experienced something similar. My issues were less noticeable as I was still dialling her in.
Originally Posted by Nick
Couple of questions.
Which tires was the car delivered with? Cups 2's or the Dunlap's?
How many miles or kilometers on the car before you tracked it? Your posts implies that after tracking its performance on the regular roads was more lively.
I'll go Occam's Razor on this one and agree with you guys on Tyre Temp.
I started off cold 1.9 front and 2.1 rear, and dropped .5 - .6 bar during the the day. I'd guess from very limited experience 2.0 - 2.3 hot is the window. Beyond that they start to feel greasy, braking zones get longer and very nervous, rear stepping out at corner entry and exit.
Car delivered with MPSC2. Plus 5000km on the clock before first trackday. Car sure felt more aggressive, more raw after the trackday. Have to say a few days later running an errant, I didn't feel that again, so it might have been a psych thing ?!
2.3-2.7 bar (33-39 psi) is the right window according to Michelin.
Also, they advise to start from 2.0 to 2.4 bar (29-35 psi) when cold.
10-13-2017, 03:36 PM
