Quote:
Originally Posted by nico_rsx
Hi,
Tire pressure question:
I bought some RE71R, and I'd like to know what HOT tire pressure are you running (those who run RE71R)?
My car is 100% stock for now. Size is 225/45/17 on RPF1.
Second question: The only thing I can play with to influence under/oversteer is tire pressure. On my RSX I would adjust the front pressure to have max grip without rolling on the side, and adjust the rear tire to remove some traction to have less understeer. I'm guessing the same apply for the BRZ; play with the rear pressure.
But on my RSX I found something strange. On my RS3 tires, I had to increase pressure to remove grip in the rear, but with the Dunlop Direzza ZII, that didn't work, instead I had to decrease pressure to remove grip in the rear.
How do the RE71 behave? Do I have to increase or decrease rear pressure to induce oversteer? Right now with the OEM tire I have good balance on corner entry, but understeer mid-corner, and sometimes also in exit.
Thanks
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Suggest starting at 32 front, 30 rear and playing with it until you find the sweet spot. With the RE71R in CS spec on my RS 1.0 I found 29 front / 27 rear to give even temperatures across the full surface of the tires but things change a little in DS spec.