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02-11-2014, 06:38 PM
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#1 |
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S5, Sport On, DSC M-track
 
Join Date: Jun 2008
Location: Scotland
Posts: 1,159
Casino cash: $20658  |
Wear on slicks
I was running with pirelli slicks yesterday that had only done couple of track days. Started to get some vibration and the front left and the outer edge have raised ridges evenly spread around the wheels across approx 2-3 inches of the width of the tyre from the outside. Swapped front around and the ridges developed again on front left. I was running about 28psi and -3.5 degrees camber. Anyone seen this before.
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02-11-2014, 07:35 PM
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#2 |
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CSL Register Uber-poster!
 
Join Date: Apr 2008
Location: Shaboogling
Posts: 7,198
Casino cash: $28466 |
Slicks make you feel every single inch of the road Derek .. Pick up any shit and you'll feel it .. Over brake and flat spot em and you'll feel it.
Wouldn't worry about vibration, difficult to really see in the pics, tyres look a little lumpy and that you've picked up a fair bit of rubber on the shoulders
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 CSL Register Lifestyle Coach and Social Secretary Last edited by DazBlackCSL; 02-11-2014 at 07:38 PM. |
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02-11-2014, 07:47 PM
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#3 |
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S5, Sport On, DSC M-track
Join Date: Jun 2008
Location: Scotland
Posts: 1,159
Casino cash: $20658 |
It's the two edges in the middle of pics that are the outer edges of the wheels. the ridges are quite big and are equidistant around the edges. It's like mini speed humps all around the outer edge of tyres never seen this before.
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02-11-2014, 08:30 PM
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#4 |
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CSL Register Uber-poster!
Join Date: Apr 2008
Location: Uk
Posts: 14,646
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if i were to guess, and it is a guess, id say you need way more neg camber
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02-11-2014, 08:51 PM
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#5 |
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S5 - Full Throttle
Join Date: Apr 2014
Posts: 388
Casino cash: $9894 |
I have to say I'm amazed you can use slicks on a standard road car, I'd have thought it's break all sorts of things. Madness.
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02-11-2014, 08:57 PM
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#6 | |
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S5, Sport On, DSC M-track
Join Date: Jun 2008
Location: Scotland
Posts: 1,159
Casino cash: $20658 |
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02-11-2014, 09:01 PM
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#7 |
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S6, Sport On, Traction Off
Join Date: Jun 2008
Location: Aberdeenshire
Posts: 1,946
Casino cash: $25356  |
What sort of times were you setting with the slicks Derek?
I spent all Tues PM there testing in the rain.
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 Paul. Ooooft!!! 15yrs in the CSL and still loving it  "shine on you crazy diamond" 
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02-11-2014, 09:06 PM
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#8 | |
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CSL Register Uber-poster!
Join Date: Apr 2008
Location: Uk
Posts: 14,646
Casino cash: $43909 |
Quote:
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02-11-2014, 09:08 PM
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#9 |
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S5, Sport On, DSC M-track
Join Date: Jun 2008
Location: Scotland
Posts: 1,159
Casino cash: $20658 |
Best was 60.7 done 60.2 on same tyres last month car is about 5mph slower on main straight than Csl it's just under a sec slower than best Csl time
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02-11-2014, 09:09 PM
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#10 | |
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S5, Sport On, DSC M-track
Join Date: Jun 2008
Location: Scotland
Posts: 1,159
Casino cash: $20658 |
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Linear Mode
