running same size tires front and rear (bad idea?)

[EviLRome0]

i just got a deal on some 235/40/17 falken rt615's with 6/32's tread left. right now i have 215/45/17 and 234/40/ 17 on the car using 17x7 wheels.

is it bad to use the same tire size front and rear? i was thinking it would be ok if i ran a higher tire pressure on the front then rear to offset the traction/over steer issues.

[slngsht]

The local SCCA instructor (and he is really good) gave me some advice... he said use the same tires all around and use suspension / air pressure to tune.

Obviously I didn't listen, since I have a need to put some power down.

[WestTexasS2K]

Shouldnt be and issue. I dont think you will even have to raise tire pressure. Mojito is running 255s on the front and 275 on the rear. It could easily be 255s on all four.

[RDROCKT]

I have been running the same size tires front and rear on my Se7ens for as long as I have had them. The ability to rotate the tires and the cost advantages are important to me.

Runnnig RT615 tires, I have found that 20# front and rear is good for street use. I might go to a slightly lower pressure for track use.

If the tires will fit under your fenders, go for it.

[Boxologist]

non issue if the tyres fit. will make tyre maintenance easier as rotating them is easier than taking hem to be flipped. optimally u know what size works for the front and the rear, but mazdais right, u can fine tune the behavior.

so is cheap and so iz dem tyres!

[EviLRome0]

thanks for the input guys!