[V8] Tires and Wheels

Fri Jan 16 13:15:17 EST 2004

Not necessarily.  If you have 17" wheels, you want the overall tire diameter to be close (or equal) to the factory diameter.  Since the wheel diameter is larger, there has to be less sidewall.  For the speedo (and wheelwell gap) to be correct using a 17" wheel, there is only one size sidewall that will work (~102mm).  That corresponds to roughly 50% of 205mm (if you use relatively skinny 205/50-17), 45% of 225mm (if you use 225/45-17), or 40% of 255mm (if you use the fat and cool looking 255/40-17).   

Your 245/45s have only 98mm sidewall.   Remember that if you replaced the 245/40s with 255/40s on your 17" wheels, there will be more sidewall, and therefore an overall increase in tire diameter (and a corresponding decrease in wheelwell gap) over the 245/40s on there now.

You have essentially 3 choices in tire size, each with different widths.  The overall outside diameter stays the same.

-Dave.

> -----Original Message-----
> From: jpb3wvu at frontiernet.net [mailto:jpb3wvu at frontiernet.net]
> Sent: Friday, January 16, 2004 12:58 PM
> To: Coleman, David
> Cc: v8 at audifans.com
> Subject: RE: [V8] Tires and Wheels
> 
> 
> Dave,
> Thanks for the clarification, that certainly makes more sense 
> than just
> a simple measurement value (ie. 40 mm or whatever) that I had 
> perceived
> as being what the "profile" number suggested.  To that end I 
> still feel
> that the 40 series tire leaves too much "gap" in the wheelwell, and if
> I am understanding correctly the 45 profile should be no problem
> becuase it is still less than the stock width/profile ratio?
> 
> John B
> 
> 
> Quoting "Coleman, David" <David.Coleman at blackrock.com>:
> 
> > FYI, 40 series can certainly be the correct height, if the tire's
> > width is right.  "40" refers to the height as a percentage of the
> > width.  For example, the V8's stock wheel/tire height w/ 215-60/15s
> > is closely equalled with a 255-40/17.  245's would appear shorter
> > because they are (40% of 245 is less than 40% of 255).
> >
> > -DaveC.
> >
> > > These are the Wheels I have on the V8 in the summer, bought
> > > them from a
> > > guy in Montreal who had them on his UrS6.  He said they 
> were stock.
> > > Also mine are 40mm offset which does not require a 
> spacer, at least
> > > with 40 series tires.  IMO 40 series tires are way too thin
> > > for the car
> > > unless it's lowered, there is too much space in the wheelwell.  I
> > have
> > > the stck wheels on now b/c the 40 series tires are 
> toasted, I would
> > > like to know if anyone has an idea if I were to go to a 45 or
> > > even a 50
> > > series tire on the 17" Boleros with stock suspension would there
> > bee
> > > any clearance issues? Again, I currently have 245/40 17 on the
> > wheels
> > > but they look too small and offer an unforgiving ride.  i
> > > don't know if
> > > it was the Yoko AVS sports that did it or the profile wheel/combo
> > but
> > > it was very nervous on uneven/rough pavement.  Thanks for any
> > insight,
> > >
> > > John Burns
> > >
> > >
> > > Quoting William Gutierrez <lundabo at msn.com>:
> > >
> > > > These may not be the 40 series tires, but here are the Boleros.
> > > > http://www.audiv8.com/german/gallery/drivers/ph_rear.jpg
> > > >
> > > > Cheers.
> > > >
> > > > Bill Gutierrez
> > > >
> > > >
> > > > >From: "Korn, Bob" <Bob.Korn at Fike.com>
> > > > >To: "'David Head'" <v8q at bellsouth.net>, sfevold at wwdb.org
> > > > >CC: v8 at audifans.com
> > > > >Subject: RE: [V8] Tires and Wheels
> > > > >Date: Fri, 16 Jan 2004 07:35:22 -0600
> > > > >
> > > > >Do you have a picture of this combination posted anywhere?
> > Sounds
> > > > nice.
> > > > >
> > > > >Bob
> > > > >90 V8Q 135K Pearl
> > > > >
> > > > >-----Original Message-----
> > > > >From: David Head [mailto:v8q at bellsouth.net]
> > > > >Sent: Friday, January 16, 2004 5:38 AM
> > > > >To: sfevold at wwdb.org
> > > > >Cc: v8 at audifans.com
> > > > >Subject: Re: [V8] Tires and Wheels
> > > > >
> > > > >
> > > > >I'm running 245/40 ZR 17 Kumhos on 35mm 17x8 Boleros 
> with plenty
> > of
> > > > room
> > > > >on both sides. I know someone out the is running 255s but I'm
> > not
> > > > sure
> > > > >of the offset.
> > > > >
> > > > >SFevold wrote:
> > > > >
> > > > > >Keep in mind when you lower your car you'll be limited to
> > 235/45
> > > > 17
> > > > > >tires, I think 245s will rub.  And your more likely to run
> > into
> > > > > >alignment issues with a lowered car.
> > > > > >
> > > > > >The combination has major curb appeal though.
> > > > > >
> > > > > >Steve
> > > > > >90 V8Q 174K Lago Blue
> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
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