How to check if tires will fit ???

reading when you change the size of your tires and wheels. ...
www.miata.net/garage/tirecalc.html
"Peter" wrote in message

>
> 1994 Buick Regal, existing tires are 205/70R -15
>
> A friend has offered me a set of tires and rims (good condition)
>
> Bolt pattern is the same only thing they are size
>
> 225/75 -15
>
> Can they be used on this car.....
>
> are there reference charts to see which tires sizes can be
> used.
>
> Thanks in advance !!
>
> Peter
 >> Stay informed about: How to check if tires will fit ??? 

Try tirerack.com
"jrl" wrote in message

> reading when you change the size of your tires and wheels. ...
> www.miata.net/garage/tirecalc.html
> "Peter" wrote in message
>
>>
>> 1994 Buick Regal, existing tires are 205/70R -15
>>
>> A friend has offered me a set of tires and rims (good condition)
>>
>> Bolt pattern is the same only thing they are size
>>
>> 225/75 -15
>>
>> Can they be used on this car.....
>>
>> are there reference charts to see which tires sizes can be
>> used.
>>
>> Thanks in advance !!
>>
>> Peter
>
>



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 >> Stay informed about: How to check if tires will fit ??? 

"Peter" wrote in message

>
> 1994 Buick Regal, existing tires are 205/70R -15
>
> A friend has offered me a set of tires and rims (good condition)
>
> Bolt pattern is the same only thing they are size
>
> 225/75 -15
>

Yes there are references on the web, but the thing you care about is the
height of the tire. Change height and you throw off your speedometer.
Stand the 75's up next to the 70's. How do they compare in height? If they
are the same height, then put them on.

--

-Mike-
mmarlowREMOVE.DeleteThis@alltel.net
 >> Stay informed about: How to check if tires will fit ??? 

Peter,

You should not have any problem with the 225/75-15s fitting the
wheel well, but you WILL have a speedo issue. Those 225s will make
your speedo and odometer run about 15% slow. It will also throw off
transmission shift points and converter lockup.

No good way to fix it either, since that size tire is not on the
factory list of tire sizes for that car, thus the ECM does not have a
calibration to correct the difference in frequency coming from the VSS
in the transaxle. The VSS in the 4T60E is not gear driven but is a
magnetic sensor triggered by a cogged reluctor ring mounted on the
differential carrier in the transaxle.

Regards,
Bill Bowen
Sacramento, CA

Peter wrote:

>
>1994 Buick Regal, existing tires are 205/70R -15
>
>A friend has offered me a set of tires and rims (good condition)
>
>Bolt pattern is the same only thing they are size
>
>225/75 -15
>
>Can they be used on this car.....
>
>are there reference charts to see which tires sizes can be
>used.
>
>Thanks in advance !!
>
>Peter
 >> Stay informed about: How to check if tires will fit ??? 

"Peter" wrote in message

>
> 1994 Buick Regal, existing tires are 205/70R -15
>
> A friend has offered me a set of tires and rims (good condition)
>
> Bolt pattern is the same only thing they are size
>
> 225/75 -15
>
> Can they be used on this car.....
>
> are there reference charts to see which tires sizes can be
> used.
>
> Thanks in advance !!
>
> Peter

To answer your question the rest of the way--reference-chart part has
been answered already. To know for sure, install the front 2. Drive in an
uncrowded parking lot, and turn extremely to left; then drive and turn to
extremely right. Drive over a speed bump. If no interference, chances are
good they will run physically ok. According to the nice link provided by
jrl, you can just add about 8% to speedo reading to get true speed. ***A
rule of thumb I've used over the years is to not exceed factory spec'ns over
1 inch on the front, esp. on fwd. This would frown on your application, as
yours would increase by 2 inches.(Personally, I would not do it.) But, what
are you willing to put up with???*** HTH & good luck, s
 >> Stay informed about: How to check if tires will fit ??? 

On Sun, 24 Sep 2006 11:52:08 -0400, Peter wrote:

>
>1994 Buick Regal, existing tires are 205/70R -15
>
>A friend has offered me a set of tires and rims (good condition)
>
>Bolt pattern is the same only thing they are size
>
>225/75 -15
>
>Can they be used on this car.....
>
>are there reference charts to see which tires sizes can be
>used.
>
>Thanks in advance !!
>
>Peter


This is a tough decision. I wouldn't mind going up
or down one tire size..but jumping two makes me
a little nervous for all the reasons given.

My only reason for using the larger tires is that I can
get a set of new tires and rims complete for about $100.

On the existing car...the rims and tires have been beat
to sh..t. My significant others bumped a lot of curbs when
moving up from a honda to a full size gm... I think she's past
this by now.

The charts help out a lot with the speed and shift differences...
Guess the only way to make sure is to take the plunge and
see how the car operates..... I can always replace the old
wheels if necessary.

Thanks again for your help !!!
 >> Stay informed about: How to check if tires will fit ??? 

"Peter" wrote in message

> On Sun, 24 Sep 2006 11:52:08 -0400, Peter wrote:
>
>>
>>1994 Buick Regal, existing tires are 205/70R -15
>>
>>A friend has offered me a set of tires and rims (good condition)
>>
>>Bolt pattern is the same only thing they are size
>>
>>225/75 -15
>>
>>Can they be used on this car.....
>>
>>are there reference charts to see which tires sizes can be
>>used.
>>
>>Thanks in advance !!
>>
>>Peter
>
>
> This is a tough decision. I wouldn't mind going up
> or down one tire size..but jumping two makes me
> a little nervous for all the reasons given.
>
> My only reason for using the larger tires is that I can
> get a set of new tires and rims complete for about $100.
>
> On the existing car...the rims and tires have been beat
> to sh..t. My significant others bumped a lot of curbs when
> moving up from a honda to a full size gm... I think she's past
> this by now.
>
> The charts help out a lot with the speed and shift differences...
> Guess the only way to make sure is to take the plunge and
> see how the car operates..... I can always replace the old
> wheels if necessary.
>
> Thanks again for your help !!!
>
>
Hey Peter, where you said, "I wouldn't mind going up or down one tire
size..but jumping two makes me a little nervous" , you are actually going
TALLER by 3 sizes when it comes to height--205-to-215= 1 height. 215-to-225
makes a 2nd height. Lastly, 225/70-to 225/75 makes another height increase,
for a total of 3 height jumps. (IE, an xxx/75 is one height taller than an
xxx/70. Remember the "low profile" descripts of the "seventy-series"? Just
information to consider.) Luck to you. s
 >> Stay informed about: How to check if tires will fit ??? 

Peter wrote in


>
> 1994 Buick Regal, existing tires are 205/70R -15
>
> A friend has offered me a set of tires and rims (good condition)
>
> Bolt pattern is the same only thing they are size
>
> 225/75 -15
>
> Can they be used on this car.....
>
> are there reference charts to see which tires sizes can be
> used.
>
> Thanks in advance !!
>
> Peter

No. Just checking on my calculator P205/70R15 are 26.3" in diameter,
P225/75R15 are 28.3" in diameter and almost an inch wider...way too
drastic a difference.
 >> Stay informed about: How to check if tires will fit ??? 

http://www.miata.net/garage/tirecalc.html

Try this
"popkorn" wrote in message

> Peter wrote in
>
>
> >
> > 1994 Buick Regal, existing tires are 205/70R -15
> >
> > A friend has offered me a set of tires and rims (good condition)
> >
> > Bolt pattern is the same only thing they are size
> >
> > 225/75 -15
> >
> > Can they be used on this car.....
> >
> > are there reference charts to see which tires sizes can be
> > used.
> >
> > Thanks in advance !!
> >
> > Peter
>
> No. Just checking on my calculator P205/70R15 are 26.3" in diameter,
> P225/75R15 are 28.3" in diameter and almost an inch wider...way too
> drastic a difference.
 >> Stay informed about: How to check if tires will fit ??? 

"jrl" wrote in message


> http://www.miata.net/garage/tirecalc.html
>

Good calculator jrl. The width difference does not bother me at all, but
the OP is going to have some speedo problems with a 2" larger diameter.

--

-Mike-
mmarlowREMOVE DeleteThis @alltel.net
 >> Stay informed about: How to check if tires will fit ???