AK
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Registered: 5th Jul 00
Location: Aberdeen City
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seen anything like this before 
http://www.trackscotland.co.uk/forums/viewtopic.php?t=1152&postdays=0&postorder=asc&start=45
Obv i'm not sure on the pressure it was running, but it doesnt look tucked under like normal (softer walled) tyres. It just looks squished!
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BluKoo
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Registered: 8th Apr 02
Location: Stonehaven (Scotland)
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I assume we're looking at the front?
I can't really see much. Not a great pic.
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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rear O/S
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BluKoo
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Registered: 8th Apr 02
Location: Stonehaven (Scotland)
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Ah, i see it now 
Thats a bit nuts. There must be a shit load of grip in those tyres.
[Edited on 20-05-2009 by BluKoo]
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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the car will have a bit of downforce (rear wing looks bent, not sure if its supposed to be like that, or its just getting bent by the force) but not that much to just squish the car down on the tyres.
The other factor i suppose is the cornering force, but I thought that would have caused the tyre to try and tuck, fold under itself.
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BluKoo
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Registered: 8th Apr 02
Location: Stonehaven (Scotland)
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Oh yeah. I was assuming the car was braking, but obvisouly not. No brake lights.
Is the the bottom of duffus dip?
Judging by the ride height at the back, there is a lot of downforce acting upon the car.
[Edited on 20-05-2009 by BluKoo]
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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yikes 
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ed
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Registered: 10th Sep 03
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Bit more air needed in them?
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ed
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Registered: 10th Sep 03
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Plus if he's coming out of a corner (he is right?) then he'll be on the gas shifting weight onto the back axle.
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birchieboy
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Registered: 18th Jan 06
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mite have the incorrect width wheel to tyre?
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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the 2nd one is just not enough air i think...
1st - i dunno - grip deforming it!!
birchie - they arent fashion victims looking for the 'euro' look if thats what you mean.
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Daimo B
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Registered: 20th Mar 00
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Adam, check out fairing shots from MotoGP.
Tyre technology squashed the outside ofthe rubber down, putting more rubber ont he tarmac.
Similar type of compound that compresses under load?
Like a Drag cars rear wheels under acceleration.
I know of it on a bike, dunno about cars though.....
But then again I never get why "tuners" use super low profile tyres, and "Racers" usse a thicker sidewall.... Myabe for this exact reason?
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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drag cars are a different thing all together - wrinkle wall tyres. They are designed to get out of shape and act like a spring
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alan-g-w
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Registered: 9th Nov 07
Location: Glasgow
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I was just talking about this today to my mate that was at Khill on sunday there. He said he went up to a car that had just come off the track or something and he could actually mould the tyres (888's) with his fingers!
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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yup... they get very very soft when they are hot
Out slicks are worse! When you're out on track the amount of shit they pickup (bury into them) if you stray of the clean lines is amazing. Then it all flies out later on... clatter bang in the arches/floor etc.
Our R32 normally has black skid marks all over it after events. Bits of flying rubber scudding off it
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