Larger rims ???

Thinking of 18² rims for 1997 Exploder.

Pros and/or cons?

MTIA

CON, the ABS will no longer work effectively.


Searcher1

"H. M. Leary" > wrote in message
...
> Thinking of 18² rims for 1997 Exploder.
>
> Pros and/or cons?
>
> MTIA

On Thu, 18 Nov 2004 18:39:46 GMT, "Searcher"
> wrote:

>CON, the ABS will no longer work effectively.

Really? I thought the ABS worked on relative RPMs, not absolute.

>
>
>Searcher1
>
>"H. M. Leary" > wrote in message
...
>> Thinking of 18² rims for 1997 Exploder.
>>
>> Pros and/or cons?
>>
>> MTIA
>

--
Bill Funk
Change "g" to "a"

I also asked this question, although it was to Ford specifically, I was told
that by altering the rims and or tires in direct relation to the distance
between center and the road surface, the ABS system would provide false
readings to the computer possibly causing a failure during a braking
emergency.

Searcher1

"Big Bill" > wrote in message
...
> On Thu, 18 Nov 2004 18:39:46 GMT, "Searcher"
> > wrote:
>
>>CON, the ABS will no longer work effectively.
>
> Really? I thought the ABS worked on relative RPMs, not absolute.
>
>>
>>
>>Searcher1
>>
>>"H. M. Leary" > wrote in message
...
>>> Thinking of 18² rims for 1997 Exploder.
>>>
>>> Pros and/or cons?
>>>
>>> MTIA
>>
>
> --
> Bill Funk
> Change "g" to "a"

I forgot something:

The Abs consists of a piece of plastic that is attached behind the rotor,
this plastic has otches cut out in it. Attached to the arm somewhere is the
sensor, the sensor reads RPMs, YES, but as in your speedo when installing
larger tires it will increase ? the rpm's at center. This may be worded
incorrectly but the theroy is correct. Ask anyone who put larger tires on
their truck and they will tell you that their speedo is off by about 10 MPH.

Searcher1

"Big Bill" > wrote in message
...
> On Thu, 18 Nov 2004 18:39:46 GMT, "Searcher"
> > wrote:
>
>>CON, the ABS will no longer work effectively.
>
> Really? I thought the ABS worked on relative RPMs, not absolute.
>
>>
>>
>>Searcher1
>>
>>"H. M. Leary" > wrote in message
...
>>> Thinking of 18² rims for 1997 Exploder.
>>>
>>> Pros and/or cons?
>>>
>>> MTIA
>>
>
> --
> Bill Funk
> Change "g" to "a"

I spelled theory Wrong!!!!! OOOOps
"Searcher" > wrote in message
news:SGcnd.4931$BX4.763@trnddc08...
>I forgot something:
>
> The Abs consists of a piece of plastic that is attached behind the rotor,
> this plastic has otches cut out in it. Attached to the arm somewhere is
> the sensor, the sensor reads RPMs, YES, but as in your speedo when
> installing larger tires it will increase ? the rpm's at center. This may
> be worded incorrectly but the theroy is correct. Ask anyone who put larger
> tires on their truck and they will tell you that their speedo is off by
> about 10 MPH.
>
> Searcher1
>
> "Big Bill" > wrote in message
> ...
>> On Thu, 18 Nov 2004 18:39:46 GMT, "Searcher"
>> > wrote:
>>
>>>CON, the ABS will no longer work effectively.
>>
>> Really? I thought the ABS worked on relative RPMs, not absolute.
>>
>>>
>>>
>>>Searcher1
>>>
>>>"H. M. Leary" > wrote in message
...
>>>> Thinking of 18² rims for 1997 Exploder.
>>>>
>>>> Pros and/or cons?
>>>>
>>>> MTIA
>>>
>>
>> --
>> Bill Funk
>> Change "g" to "a"
>
>

On Fri, 19 Nov 2004 02:15:14 GMT, "Searcher"
> wrote:

>I forgot something:
>
>The Abs consists of a piece of plastic that is attached behind the rotor,
>this plastic has otches cut out in it. Attached to the arm somewhere is the
>sensor, the sensor reads RPMs, YES, but as in your speedo when installing
>larger tires it will increase ? the rpm's at center. This may be worded
>incorrectly but the theroy is correct. Ask anyone who put larger tires on
>their truck and they will tell you that their speedo is off by about 10 MPH.
>
>Searcher1

That plastic piece you're describing is the ABS sensor, not the ABS.
The ABS itself takes data from that sensor, and determines when to
apply the ABS braking, using a computer.

When you brake, the RPMs of the wheel decrease; the slower you're
going, the lower the RPMs are. When a wheel skids, the RPMs drop much
faster; this is the principle the ABS works on.
If larger wheels could damage the ABS by simply lowering the RPMs, how
would ABS work? The RPMs lower when you brake.
All putting larger wheels on does is reduce the initial RPMs when you
start braking, which is exactly what happens when you start to brake
at a lower speed anyway.
IOW, larger wheels do not affect ABS because the ABS doesn't care how
fast you're going (unlike the speedometer); it cares about how fast
the wheels decellerate.
--
Bill Funk
Change "g" to "a"