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tyre width vs HP
I am currently running 17x255 rear and 235 front - Bridgestone wet/dry track tyre.
They are due for changing. I am considering going to 275 rear, 255 front. I could always use a bit extra grip  But there must be a trade off vs the amount of rubber on the track compared to how much HP you run. My engine is stock, except for the mods listed below. I know guys are running up to 315 rear, but probably with a lot more HP than mine. It would seem obvious, if I was only running 200 HP, the car would seem to be carrying too much rubber to utilise it effectively.
Also , does the ideal formula change in the wet, or is it same for both?
So my Q really is, am I likely to be carrying to much rubber for the car by going to 275/255.
Thanks
Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-)
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