Eric Erickson wrote:
> On 30/11/2004, at 6:30 AM, Rocky Frisco wrote:
>
>> Eric wrote:
>>
>> I watched and enjoyed the video. I have a question: I can't hear any
>> tyre squeal on the soundtrack. When I raced in the 60's the sound of
>> the tyres squealing was a very loud constant, both in the Mini and the
>> MGA. If the tyres weren't really making some serious sound, I wasn't
>> going fast enough. Were you holding back, or are the newer tyres more
>> quiet?
> Thanks Rocky,
>
> Good, soft, modern tyres don't squeal :-)
That's what I suspected.
> They may moan and groan and even roar but they rarely squea - my old
> skinny, hard, cheap 175s squealed all the time whether on the btrack or
> not. My Bridgestone Potenzas hang on - until they let go... and when
> they let go they really let go, but still make no great noise that I
> have ever heard unless I am literally sliding sideways down the tarmac -
> and then that is quite noisy :-)
I hated it when that happened. ;)
Seriously, I always have preferred for the car to let me know when
it's near the edge, and that has usually been when the tyres start to
sing really loudly.
> (yes, again, pardon the wind noise <sigh>):
> http://www.erickson.on.net/mgb/movies/mallala071104/oops1.MOV
I have downloaded them and viewed.
I definitely heard some tyre sounds there! :)
> Try this one for overly ambitious braking... she locks the fronts and
> ploughs just before I bail out (a little bit of dirty stuff there but
> not sand - and the slip makes a noise like it is slipping briefly on sand).
>
> http://www.erickson.on.net/mgb/movies/mallala271104/mal271104off1.mov
Wow! That happened fast!
> I think what you are missing here is that there is only one truly fast
> corner on this track. The rest are REALLY hard braking, turn then
> accelerate, so there is not lots of ongoing lateral forces on the tyres
> and hence not lots of squealing.
>
> Well, they are MY theories! Frankly I haven't thought about it too
> much. The track is not hard on tyres but it is hard on brakes. I
> almost have my brakes sorted (almost) but I certainly need new tyres for
> next year.
-Rock http://www.rocky-frisco.com
--
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