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indro: Mina sõitsin Toyo 205/50/R15 rehvidega viimasel Opentrackil soojalt 2.5 barise rõhuga ja see rehvidele küll hästi ei mõjunud.
Mustri laiuses umbes 1/3 peal tekkis siuke sügavam vagu ja esirehvid kulusid veel ebaühtlaselt ka.

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I received the following info as a response to an email I sent to Toyo. I was wanting advice on tyre pressures for the R888's on my Clio. This is straight from Toyo's Technical and Motorsport manager, so straight from the horses mouth.

Hope this is helpful to everyone.

SET UP ADVICE FOR THE TOYO PROXES R888

The R888 has a semi race construction (very stiff) and a race tread compound. The optimum tread temperature range is between 85C and 95C measured using a probe type pyrometer, and ideally a maximum difference across the tread of 9C. The maximum hot pressure we recommend is 40psi. Camber angles up to 5 degrees are permissible but the final setting will depend on tread temperatures. It is advisable to have as much positive castor as practical as castor induces a beneficial camber change during cornering. I recommend that the tyres be put through a heat cycle before hard use, this will scrub them in and remove any mold release agent.

The pressures you use will initially depend on the weight of the car, too little pressure on a heavy car can lead to over deflection of the tyre and subsequent failure.

Below are some basic settings:

VEHICLE WEIGHT COLD PRESSURE HOT PRESSURE
Very Light < 800kg 17 - 22 psi 22 - 29 psi
Light 800kg - 1000kg 20 - 26 psi 24 - 32 psi
Heavy 1000kg - 1400kg 23 - 27 psi 28 - 40 psi
Very Heavy > 1400kg 27 - 35 psi 37 - 40 psi

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