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    Smaller, Lighter and Wider is Better

    Smaller, lighter Thank you Olestra. Yes you are correct, also the smaller OD with the lower profile tires enables more practical use of 5th gear at max power, at least at the end of the straight at Lime Rock. 5th was too high and now it is perfect for about 125mph and 4th works for the turn...
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    Smaller, Lighter and Wider is Better

    BFG R1 G Force I should have said G-Force R1
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    Smaller, Lighter and Wider is Better

    Correction/details My rims are 18" not 17". Kosei K1 TS, 18x7.5, 52.5 offset, weight 16 lbs. Tires for road racing track G-Force P225/40ZR18. Works very well, front pressure 41, rear 38 hot.
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    Do TPMS have batteries?

    It will cost you My five year old batteries on this redundant system have started to fail. Also had to replace a control unit of some kind. Very expensive and not covered by extended warranty as "batteries" are not covered!
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    Smaller, Lighter and Wider is Better

    17" rims with the right offset and tires are a great improvement. Car is lower, unsprung weight is less, ratios are more usable. (155 MPH in 6th is not much use is it?) Terrific performance in 4th and 5th. Handling is improved. These are my findings, how about yours?
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