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On My r33 GTR i had if my memory is correct 275/45/17 on the rear and 235/35/17 on the front

Are you sure??? That's a circumference of 84 inches on the rear and 73 inches on the front. The front would be performing many more revolutions than the rear at a given speed. attesa wouldn't like that at all. from another site:

"One of the common mistakes that people make is using different tyres (grip levels) and different sizes (your fronts and rears should be the same size, width and height) as any small changes will drastically affect how ATTESA interprets its input."

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Are you sure??? That's a circumference of 84 inches on the rear and 73 inches on the front. The front would be performing many more revolutions than the rear at a given speed. attesa wouldn't like that at all. from another site:

"One of the common mistakes that people make is using different tyres (grip levels) and different sizes (your fronts and rears should be the same size, width and height) as any small changes will drastically affect how ATTESA interprets its input."

I Know I was running a different size from front to rear I cant truly remeber but the rear was 275 and the front was smaller. it does work I will get the information to you

wonder what size/offset these rims are...

CIMG5500.jpg

All,

They are 18x11's all round, 45 offset or what ever a STD gtr offset is. They are a once off development wheel and were never put on the production line, this is the only set in existance.

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