tire size

fuji4me · #1 11-01-2007, 04:50 PM

Hey All,

Have a nice set of 225/60/R16's offered to me, anyone try to fit these? I have the stock 225/50/16's on the 92 SVX right now. The 60 series tire looks like it would be WAY tall??
Thanks, Marte

immortal_suby · #2 11-01-2007, 06:53 PM

225/60's will rub the plastic fenderliner in the rear on hard turns.

svxfiles · #3 11-01-2007, 07:17 PM

Quote:

Originally Posted by immortal_suby

225/60's will rub the plastic fenderliner in the rear on hard turns.

AND be harder on your transmission, and throw off your speedometer.

porschekiller · #4 11-01-2007, 07:32 PM

i fit 255/50wr16s on my svx no problem. the 225/60vr16 will help eliminate the understeer with 2100lbs on the nose, the same as an outback. i've seen 245/55wr16 toyo proxes t1r fit perfectly.

Quote:

Originally Posted by svxfiles

AND be harder on your transmission, and throw off your speedometer.

TomsSVX · #5 11-01-2007, 07:56 PM

im still confused as to why you are convinced a taller sidewall alone will help eliminate understeer?? If anything it would increase as tire roll will increase.

Tom

Psychosis5150 · #6 11-01-2007, 09:45 PM

Gotta say I agree completely with Tom on this one! Here is a link to a tire size calculator. http://www.wickedbodies.net/Tire-Size-Calculator.htm. You can plug in different sizes at the top to compare diameters, tread width, and speedometer difference. They wont help you too much on fender clearances, but you can get a good idea what might fit when changing rim and/or tire sizes.

fuji4me · #7 11-02-2007, 09:47 AM

thanks for the replies. It looks tight at the back, possibly a problem if there are passengers in the back. I think I'll mount one and have a closer look.
Marte

SVXRide · #8 11-02-2007, 10:17 AM

Quote:

Originally Posted by fuji4me

thanks for the replies. It looks tight at the back, possibly a problem if there are passengers in the back. I think I'll mount one and have a closer look.
Marte

Marte,
why waste the time mounting a tire? They really won't work, for all the reasons already mentioned.
-Bill

porschekiller · #9 11-02-2007, 10:26 AM

it's not the size, but the make that increase tire roll. (i.e. NASCAR & F1 on 15's) (i've also found that tires lower than a 195/50, 215/45, 235/40, 265/35) sidewall dont have enough roll for optimum handling.) a 245/50zr17 pirelli pzero would have less roll than a 225/50VR16 all season tire. granted, a 225/60vr16 isnt an ideal size, but get them in a bridgestone RE750 summer tire and you'll find a comfortably stiff sidewall. 225/60 was also the profile on mustang GTs and BMW 5 serires for alot of years. only in the SVX's case does the weight dictate a higher load capacity. hypothetically, if you got all that weight on one front tire late braking in a corner the 225/50-16 or 225/40-18 are as good as nothing.

Quote:

Originally Posted by TomsSVX

im still confused as to why you are convinced a taller sidewall alone will help eliminate understeer?? If anything it would increase as tire roll will increase.

Tom

porschekiller · #10 11-02-2007, 10:40 AM

width times % profile, times 2, divided by 25.4, plus wheel diameter. tire width in inches: width divided by 25.4. ex. (225x60%x2)/25.4+16. if you're using the same wheel, then just width times profile and then divide by another profile will give you same height with different width. 60% or .60 is the same.

Quote:

Originally Posted by Psychosis5150

Gotta say I agree completely with Tom on this one! Here is a link to a tire size calculator. http://www.wickedbodies.net/Tire-Size-Calculator.htm. You can plug in different sizes at the top to compare diameters, tread width, and speedometer difference. They wont help you too much on fender clearances, but you can get a good idea what might fit when changing rim and/or tire sizes.