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Donington (national) yesterday
#1266355
03/10/2011 12:14
03/10/2011 12:14
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DaveM
Unregistered
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DaveM
Unregistered
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Went to my first track day on Sunday, first ever time at a track in any form in fact Took a while to get any confidence, wheel nuts coming loose didn't help that but had some fun towards the end of the day as the track got quieter. Obligatory vids: my last run - brakes faded at the end http://www.youtube.com/watch?v=-EnUMaAPqvESome instruction from a m8 who went with us: http://www.youtube.com/watch?v=DPEXIapomBEWould have more video of my last go on track but I kept forgetting to stop the video and it over-writes older video The last run was about 6 laps, I'd come in earlier than that before as I was keeping my oil temp below 110 but as it was the last run of the day I let it creep up to 115. Brakes lost their effectiveness by the end of that run though, luckily at an easy place to run off. I'm assuming it was brake fade as they just didn't pull me up like they were doing before but still obviously had a fair bit of stopping power and I could complete my cool down lap without any drama. I'd really love to go back in November but I'm at bedford on the 12th, not in my car this time but my body couldn't take two days in a row
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Re: Donington (national) yesterday
[Re: ]
#1266358
03/10/2011 12:19
03/10/2011 12:19
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Joined: Aug 2009
Posts: 6,192 Bristol, UK
Hovedan
Forum is my life
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Forum is my life
Joined: Aug 2009
Posts: 6,192
Bristol, UK
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Excellent, another cherry popped! That first clip was only 2 laps, and where were you going at the end of that second lap Come along to Donny anyway, get plenty of passenger rides and top tips for future track days?!
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Re: Donington (national) yesterday
[Re: Hovedan]
#1266372
03/10/2011 12:49
03/10/2011 12:49
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DaveM
Unregistered
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DaveM
Unregistered
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That first clip was only 2 laps, and where were you going at the end of that second lap The app on the phone records 9x5 minute segments in a rolling reel (like log rollover), I clipped the video in moviemaker just as I went onto the straight as I was just cruising round to cool off then as I suspect the brakes had over heated. They were great right up until then though, full confidence to brake late from 100+ Sadly the previous laps were lost as I forgot to stop the video so I ended up with half an hour of video in the garage I'd been messing with some of the earlier laps and had 'kept' them, which I think just copies them so they don't get overwritten. I'll try another app (harrys laptimer) next time out which records HD, I didn't bother with it this time as I don't quite understand it and didn't need the distraction
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Re: Donington (national) yesterday
[Re: ]
#1266465
03/10/2011 18:32
03/10/2011 18:32
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DaveM
Unregistered
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DaveM
Unregistered
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Might see if FE allow people to turn up after lunch, it'll be a 5am start for bedford so don't fancy a 6am start on the Sunday too
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Re: Donington (national) yesterday
[Re: ]
#1266523
03/10/2011 21:13
03/10/2011 21:13
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johnnybravoturbo
Unregistered
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johnnybravoturbo
Unregistered
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Well done Dave, Glad it survived the torture. What front brakes were they if you dont mind me asking, I know the discs were 3g but were the pads carbotech?
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Re: Donington (national) yesterday
[Re: ]
#1266559
03/10/2011 22:28
03/10/2011 22:28
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DaveM
Unregistered
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DaveM
Unregistered
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Yes Carbotech XP-10s. I'd have thought they'd be more tolerant tbh but maybe I was on the brakes too long. Just looks like they overheated, after a cool down lap without touching them they were still smoking when I got in the pits Everything on the car worked fantastically though, balance was forgiving enough that even with a rescue brake mid-corner through craners when I stuffed up my line it behaved itself. Oil has dropped maybe 1mm on the dip stick and is still golden - good stuff considering the temps
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Re: Donington (national) yesterday
[Re: ]
#1266621
04/10/2011 01:07
04/10/2011 01:07
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DaveM
Unregistered
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DaveM
Unregistered
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You've got me thinking now, maybe I'll drop it in to John's sometime for a poke and a prod. I did notice there was a dollop of something dark and oily looking all round the inside of the alloy (a thin line in the middle of the wheel no more than an inch across). Just assumed it was some road crud that had melted. edit: noticed some stuff on the disk when putting some air in this morning, pad material I assume. http://img402.imageshack.us/img402/7930/img0073as.jpg
Last edited by DaveM; 04/10/2011 01:13.
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Re: Donington (national) yesterday
[Re: MattM]
#1266668
04/10/2011 09:52
04/10/2011 09:52
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DaveM
Unregistered
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DaveM
Unregistered
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What fluid are you using Dave? Castrol SRF, only a few weeks old. Pedal feel was normal, just braking effect reduced from high speed.
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Re: Donington (national) yesterday
[Re: ]
#1266674
04/10/2011 10:21
04/10/2011 10:21
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johnnybravoturbo
Unregistered
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johnnybravoturbo
Unregistered
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Everything on the car worked fantastically though, balance was forgiving enough that even with a rescue brake mid-corner through craners when I stuffed up my line it behaved itself.
Oil has dropped maybe 1mm on the dip stick and is still golden - good stuff considering the temps smile Told you to watch out for Craner didnt i Brakes are always difficult as you cant test them on the road and simulate the heat as you would on the track. I am running the DS2500 ferodo race pads with the same front discs and same fluid as you Dave so will report after i do Donny next month. Dan- with your driving brakes arent needed As for the black substance it sounds like a cv boot has gone,this may have caused your brakes on one side to overheat as well mate.
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Re: Donington (national) yesterday
[Re: ]
#1266737
04/10/2011 14:07
04/10/2011 14:07
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Marco20ValveT
Unregistered
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Marco20ValveT
Unregistered
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that brake fade must of left a funky smell in your car glad you had run oof!!
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Re: Donington (national) yesterday
[Re: ]
#1266739
04/10/2011 14:08
04/10/2011 14:08
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proccy
Unregistered
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proccy
Unregistered
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booked yet gwar?
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Re: Donington (national) yesterday
[Re: ]
#1266741
04/10/2011 14:09
04/10/2011 14:09
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Marco20ValveT
Unregistered
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Marco20ValveT
Unregistered
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Re: Donington (national) yesterday
[Re: ]
#1266742
04/10/2011 14:13
04/10/2011 14:13
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proccy
Unregistered
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proccy
Unregistered
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Is that gormless grin yes or no?
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Re: Donington (national) yesterday
[Re: ]
#1266745
04/10/2011 14:18
04/10/2011 14:18
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Marco20ValveT
Unregistered
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Marco20ValveT
Unregistered
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Re: Donington (national) yesterday
[Re: ]
#1266749
04/10/2011 14:21
04/10/2011 14:21
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proccy
Unregistered
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proccy
Unregistered
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Cabbage gwar - see you there
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Re: Donington (national) yesterday
[Re: ]
#1266951
04/10/2011 23:12
04/10/2011 23:12
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johnnybravoturbo
Unregistered
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johnnybravoturbo
Unregistered
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His Mrs wont allow him to leave her for a sunday mate.
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Re: Donington (national) yesterday
[Re: ]
#1266955
04/10/2011 23:18
04/10/2011 23:18
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Marco20ValveT
Unregistered
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Marco20ValveT
Unregistered
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Ha says the man who is bringing his mrs!!!
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Re: Donington (national) yesterday
[Re: Ecrab]
#1267001
05/10/2011 00:56
05/10/2011 00:56
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Joined: Aug 2009
Posts: 6,192 Bristol, UK
Hovedan
Forum is my life
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Forum is my life
Joined: Aug 2009
Posts: 6,192
Bristol, UK
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F**k me, I run carbotechs and 3G discs on my 20vt, and they've never let me down like that at any track day I've done (lots!), I've done near half hour sessions on them. Yes, they smoke for a good 20 minutes afterwards, but they have never stopped working You've got cooling ducts though, haven't you Dan? Yes I've got Citreon brake ducts that help for sure, but like Dave I also use castrol srf so everything else is very similar. And whatever John says, I do use the brakes, very hard and very late So I'd take a closer look Dave, you should have a good performing setup there?!
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Re: Donington (national) yesterday
[Re: ]
#1267182
05/10/2011 13:58
05/10/2011 13:58
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DaveM
Unregistered
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DaveM
Unregistered
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The ducts sound like a good idea, but reading around the subject I came across 'green fade', basically sudden pad fade on new pads that aren't bedded in. I did the usual 70-30 and 80-10 stops as advised but the box suggested XP10's and 12's could require a 2nd bedding in where they are driven until they fade. Obviously I couldn't do that on the road. I guess I did that now
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