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Hi all,

Can anyone assist with a continuing problem I am encountering with massive judder and squeel seemingly from the front left of my car. After a warm up lap it starts at turn 6 and gets progressively worse whereupon it's useless to persist. I can put up with the squeeling, but the judder is not good.

My brake set up is AP Racing with Ferodo Racing pads (2 very shortened track days old). I am about to take it in to be looked at (again) by my mechanic who suggest changing to a new pad compound (hawks). I never had this problem prior to changing the pads ( don't know what the prior pads were)

Thanks in advance.

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The shuddering can be tyres, can be pad deposits on the rotors, can be warped rotors, From memory you are running the old GT Spec 6 pot APs, i would personally guess its pad deposits if its not there at high speeds when cold.

Hey Roy,

I am running 4 spot AP's. After the first incident at Sandown I took the car back to the mechanic thinking the pads were scrubbing on the alloy hat when hot, but i was told there was plenty of clearance, even though the aluminium hat is scored. I did a track day at Phillip Is after this without incident then Sandown and the same happens.

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