(MARRS-RX7) Rotor question

Michael Root root.michael.j
Tue Mar 17 21:25:38 CET 2015


What size bearings? My book is in my trailer today.

v/r
Michael J. Root, PMP
On Mar 17, 2015 4:23 PM, "johnnythegreek58 via Spec7" <spec7 at specrx7.com>
wrote:

> Even with the brake ducks my rotors dont last more then 3 days or racing..
> 1 day if raining (I guess do to the rain cooling them to fast)
>
> You can actually hear them crack (pop). I remember after a race I came
> into the pits. As soon as I parked and blocked the wheels it popped with a
> pop/twang sound.
>
> I knew just what it was.... it was time for a new rotor.
>
> Johnny The Greek#27
> On Mar 17, 2015 4:05 PM, "DANNY MATULA via Spec7" <spec7 at specrx7.com>
> wrote:
>
>> When I was doing a crap load of track days I started with the brembo
>> rotors like everyone said and cracked them so I went with the ones from
>> rock auto and well they cracked in about the same amount of time so I just
>> bought a bunch for $15 each. I didn't have the comp brake ducts on the car
>> at the time and even with the best fluid I could find and everything else I
>> could do I could fade the hawk blues in about 15 mins but n the short time
>> I had the vents I can't remember fading them and where I might get thru a
>> long track day with out cracking a rotor I went thru the 3 day school on
>> one set no problem.
>> On Mar 17, 2015 3:44 PM, "Matthew Stutt via Spec7" <spec7 at specrx7.com>
>> wrote:
>>
>>> You're nuts.
>>>
>>> The brakes aren't undersized, but it's awfully generous to say there is
>>> 'plenty' of braking capacity.
>>>
>>>
>>>
>>>
>>> On 3/17/15 3:18 PM, Owen Schefer via Spec7 wrote:
>>>
>>>> We have plenty of braking capacity with the current set up, we just
>>>> need a better hub and rotor arrangement.  NA Miata rotors are 9.25" OD,
>>>> IIRC.
>>>>
>>>> Stutt will be along shortly to say I'm nuts... ;-)
>>>>
>>>
>>> --
>>> --
>>> M. Stutt
>>>
>>>
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>>
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