"dont get bigger tires... it will throw off your speedo", i beg to differ Options

[lagos]

so, for years ive always had people say to stay with low profile tires, because anything bigger will throw off your speedo. im sure we've all seen the online calculators and countless threads. ive even had tirerack call me back and try to convince me to change my order from 225-45-17s to 205-40-17s because of this..lol ...

well anyway, i just wanted to say that all that, is mostly a myth. i recently got a gps for my car. my speedo is dead on with the mph reported by the gps. i was a bit shocked because i expected it to be off by at least 1-3mph. so go ahead, get bigger tires and enjoy the ride quality..your speedo will be just fine

This post has been edited by lagos: May 24, 2007 - 9:25 PM

[GTS13]

The MPH difference isn't what would bother me, it's the fact that you engine was designed to rotate a certain circumference and increasing that circumference could possibly decrease your acceleration. You may not notice the small difference with you GT but I know for a fact that I would most certainly notice with my ST until I do some engine mods to increase the numbers I put out, but even then depending on the wheel and tire size and the engine mods I could just end up running like stock and where's the fun in that?

Edit!
While I won't remove what I stated earlier because it's good stuff. I forgot that I have 215/45/17s and uhh...it's pretty close to stock. The 225s are going to be a little taller though.

This post has been edited by GTS13: May 25, 2007 - 12:48 PM