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Discussion in 'Projects/Progress Threads' started by Northloopcup, Mar 30, 2018.
Not that loud
Good! No cats anywhere in the system so I wasn’t sure!
glad you had a good day boys..all was spot on..the weather,company pit girls
well, this is what happened with my first set of cup 2's, when i ran them at lower pressures (32 front /30 back - hot).
so, i'd keep a close watch on those sidewalls.
michelin asked me to sent them back, so they could take a closer look. later they got back to me and said that i probably ran them at too low a pressure. combined with a bit of 'kerb hopping' that could be the cause of the damage.
since yesterday, i've got that second set under the car. michelin sent them to me under warranty. so i got them for free and i'll wear them out, but never am i going to buy them again. replaced the first set with yoko AD08R's. they lasted longer, had equal amounts of grip, car felt even more stable at the back under heavy braking, didn't come off the rim as the cup 2's and are less expensive as well. the cup 2 is just a tiny bit better when it's damp/wettish.
(i'm on stock engine and stock suspension.)
The problem with the pressures Michelin recommend are based on the Megane Rs, so the Clio is never going to heat them up in the same way. From cold pressures to hot I was getting a consistent 3psi increase, which from experience means the tyres are being worked correctly. There was no way I was going to get them up towards 34/36psi going off my pressure measurements after 5-6 laps, then straight back out. This was for a 1hr 30min session as well.
The ambient temperature yesterday was 28 degrees c and the track temp would certainly have been hotter. I’ll try and measure the pressures today as they will be true cold pressures now.
I’m also on stock engine and suspension with the exception of h&r lowering springs.
I can’t help but feel the kerb hopping and a bad batch played a part in your tyres failing.
A very nice chap on Facebook had taken this pic of FKU on track at FCS and sent it on to me!
Nice to see you getting out in the car on track and getting some use of it Mark!
Cheers Tom. 3rd time I’ve driven it this year........
Do you have WhatsApp mate? Or are you on iPhone?
@peter finally checked the cold tyre pressures today. 23psi front and 25psi rear. Tyres must’ve still been warm from the drive up to the show when I checked them.
Was that an espace down the pit straight
PM on route
Yep afraid so! Sounds like you caught me on video just after I out braked myself down the Dunlop straight!! Lol
need's someone to photoshop the 'espace' out
for a screen grab, that's bang on
cheers mate. i have a trackday planned next monday. going to start with the (hot) pressures provided by michelin. then see how the car behaves and adjust accordingly. just a bit wary to go too low, after my first experience with the tyre.
Keep us posted on how you get on mate. Always good to share opinions/notes/experiences.
As said in the text, why track an espace?! Lol
yeah. will do.