AMD

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S4Player
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Re: AMD

Post by S4Player » Mon Nov 11, 2013 11:27 pm

I never binned them I sold them actually to another forum member (for buttons and was aware of the issues) who tried them and he then got rid also! I then stuck some ceramics on. twos up to you saki, I'm sure you know what that means
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Re: AMD

Post by redrsr » Tue Nov 12, 2013 5:48 pm

This is on the net too...

First we need to look briefly how discs work. Through friction, we convert forward motion into heat. The heat transfers mainly into the brake discs and pads and they are effectively ‘air cooled’ by the speed. As the disc starts to get hotter it expands. Then as it cools it shrinks back to exactly the same size and shape it was before the process started. The trouble is it can only do this within certain parameters and if the disc gets hotter than its maximum temperature then it will no longer return to the same size and shape that it started. It will cool as a totally different shape. In other words it is warped.
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sakimano
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Re: AMD

Post by sakimano » Tue Nov 12, 2013 6:12 pm

Source?

My information was from Stop Tech, one of the largest brake companies in the world, and was written by a race engineer.

Your information was from a blog, and was not signed or attributed to anyone. The site was selling brake discs...for motorcycles. In other words, 5mm thick, weighing a pound. Further, it was for race applications. He was referring to using far too thin discs for inappropriate applications. Further still, you failed to quote the part where he described super cheap, thin motorcycle discs as being potentially warped (still with no backup or data to support the claim, just hyperbole), pushing visitors to the site to buy higher end (higher margin) items.

We on the other hand were talking about 20lb rotors for street cars.
Last edited by sakimano on Tue Nov 12, 2013 6:35 pm, edited 2 times in total.

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sakimano
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Re: AMD

Post by sakimano » Tue Nov 12, 2013 6:13 pm

S4Player wrote:I never binned them I sold them actually to another forum member (for buttons and was aware of the issues) who tried them and he then got rid also! I then stuck some ceramics on. twos up to you saki, I'm sure you know what that means
class act

Sorry for helping.

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Re: AMD

Post by Ginors4 » Tue Nov 12, 2013 6:25 pm

I'm really enjoying this brake disc thread, I mean AMD thread
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Re: AMD

Post by RIV » Tue Nov 12, 2013 7:33 pm

Pad deposits, tell me more, how can this cause a disc to warp :bigblink:

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Re: AMD

Post by S4Player » Tue Nov 12, 2013 8:53 pm

Cause saki said so and jhm rocks, beyond boring now
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Re: AMD

Post by RIV » Tue Nov 12, 2013 9:00 pm

JHM. For the win!! :bowdown:

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Re: AMD

Post by redrsr » Tue Nov 12, 2013 9:10 pm

Oh, so that makes the information wrong then, so metals don't expand and contract with heat, build up on discs does happen, agree, high spots on the discs causes hot spots and uneven temps, a disc cooling unevenly will warp, twist, buckle or whatever you want to call it... Source, 5 years motor racing, bucket loads of discs, lathe and dial gauge, an apprenticeship studying casting and metalurgy, could be wrong though
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Re: AMD

Post by RIV » Tue Nov 12, 2013 9:27 pm

Oh, so that makes the information wrong then, so metals don't expand and contract with heat, build up on discs does happen, agree, high spots on the discs causes hot spots and uneven temps, a disc cooling unevenly will warp, twist, buckle or whatever you want to call it... Source, 5 years motor racing, bucket loads of discs, lathe and dial gauge, an apprenticeship studying casting and metalurgy, could be wrong though
What's my comment got to do with what you've mentioned?? Just saying JHM for the win

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Re: AMD

Post by S4Player » Tue Nov 12, 2013 10:27 pm

Think that was directed at saki@jhm
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Re: AMD

Post by RIV » Tue Nov 12, 2013 10:35 pm

Think that was directed at saki@jhm
Yep JHM's sales rep :nodder:

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sakimano
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Re: AMD

Post by sakimano » Wed Nov 13, 2013 1:37 am

You're a load of children. Anyway, just waiting for silas to show me anything to support his master comment.

It's fun watching Danny <beep> himself.

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Re: AMD

Post by chunky79 » Wed Nov 13, 2013 8:01 am

sakimano wrote: It's fun watching Danny <beep> himself.
You got a spy cam in his toilet then? Freak.
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Re: AMD

Post by RIV » Wed Nov 13, 2013 10:12 am

It's fun watching Danny <beep> himself.
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