Tire & Wheel Forum sponsored by The Tire Rack
|11-21-2007, 01:55 AM||#1|
Join Date: Aug 2006
Location: Berkeley, CAVehicle:
Tire & wheel dilemma
I am currently running 18X8 Rota Torques on my 03 WRX, with Kumho Ecsta SPT tires; size 235, 40. The rest of my suspension is stock, for now.
Lately I have been participating in more Autox and track days.
I realize that high performance / competition tires are expensive in the 18" size. The 18" wheels are also heavy.
I am considering a few options
1) use my OEM 16x6.5 wheels for autox/track use
I would squeeze a 225 Falken RT615, michelin pilot sport cup, or other sticky tire on there
this combination would provide a greater bang for the buck than the kumho SPTs I currently run on the rotas combined with a weight savings.
2) trade my 18" rotas for some 17x7.5 or 17X8 rotas
This would lighten up the 4 corners of the car a little bit
I could also run a 235 or 245+ tire, but at a slightly higher cost and weight
I would most likely end up with the RT615s on a 17" wheel, instead of a better tire such as the pilot cups or ecsta v710s on the 16"
My question is:
Will I miss the width of a 235+ tire if I go with the OEM 16" wheels & run a 225 tire?
Will the 17" diameter provide an advantage over the 16"?
I am not concerned with the effect aftermarket wheels have on the SCCA/ NASA classification of my car.
Also, what effect does a changing wheel diameter have on a suspension setup?
If I had lowering springs or coilovers, would a change from 16" to 18" wheels in between events have a negative effect on the setup?
If other info is needed to help answer my question please let me know.
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Last edited by CaliforniaDistraught; 11-21-2007 at 02:02 AM.
|11-21-2007, 06:11 AM||#2|
Join Date: Mar 2002Vehicle:
we have an Uncle
.....17 x 8........245/40 or 255/40 will almost certainly be the cheapest/easiest/lightest combination....there are several good, light 17 x 8 wheels that are available
....but the stock suspension is pure garbage and you will see that once you start to upgrade it
Last edited by Uncle Scotty; 11-21-2007 at 06:33 AM.
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