| Author |
Message |
    
Blake
| | Posted on Tuesday, January 18, 2011 - 08:10 pm: | 
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I'd agree with that. |
Stirz007
| | Posted on Wednesday, January 19, 2011 - 10:58 am: |
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Jim - you got some real nuggets in your posts. I plan to steal a couple of your licks - Thanks
JM |
Dannybuell
| | Posted on Wednesday, January 19, 2011 - 11:16 am: |
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Lawineer - "REALLY fast" That's what I'm talking about.
Jdugger - This has been one of the best threads, so much thoughtful direction on your part..... THX
I respect both of the IAC setting viewpoints. Can someone list the top 1125 racers by name with their IAC setting viewpoints?
(Message edited by dannybuell on January 19, 2011) |
Pmjolly
| | Posted on Wednesday, January 19, 2011 - 10:41 pm: |
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Jdugger, did you say you are riding on the track this weekend? I need to get my bike out. I could bring a laser thermometer and see what temperature your brakes are reaching. It would have to be Sunday. I have a class on Saturday. |
Jdugger
| | Posted on Wednesday, January 19, 2011 - 11:37 pm: |
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I'll be at ECR this weekend. I have a laser thermometer in the garage I use for tires, never thought about it for the rotor, actually.
If Sunday's weather holds, sure, come on out. |
Jdugger
| | Posted on Wednesday, January 19, 2011 - 11:39 pm: |
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> Can someone list the top 1125 racers by name with their IAC setting viewpoints?
I doubt it.
I'm told I have the same map as Eslick, and it's really generous off-throttle. But, that comment is worth what it cost you. |
Blake
| | Posted on Thursday, January 20, 2011 - 12:44 am: |
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IR (infrared) thermometers won't work on shiny surfaces like brake disks. The laser is just to help you aim by the way. |
Pmjolly
| | Posted on Thursday, January 20, 2011 - 12:49 am: |
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I don't think his rotors are shiny anymore. Haha. I did not know that, Blake. I am going to have to look into why that is. |
Blake
| | Posted on Thursday, January 20, 2011 - 01:34 am: |
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Shiny surfaces reflect infrared (IR) radiation, but are not effective radiators of it. Like Lawineer stated, at least before they get red hot, the brake disks don't radiate much if any heat (IR). An IR thermometer works by detecting radiant heat (IR radiation). I tried using one on my Cyclone's polished aluminum oil tank. It read ambient temperature or a little higher. It's like trying to take a photograph of the surface of a mirror. |
Jdugger
| | Posted on Thursday, January 20, 2011 - 09:41 am: |
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Blake is right about the IR/Laser thing. When I got my Pyrometer I compared it to a proper tire pyrometer, the kind that pierce the rubber with the metal tip.
I found my non-contact pyrometer to be relatively accurate at measuring tire surface temps when held about 1-2 inches off the surface of the tire.
Any further out than that, you are measuring the wheel, swing arm and ground, too. |
Slaughter
| | Posted on Thursday, January 20, 2011 - 03:54 pm: |
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You need to realize that those non-contact IR pyrometers are measuring a "cone" of thermal returned temperature. The laser gives the mistaken impression that you're measuring a "spot"
The cone is something like a 30 degree included angle - most devices show this on the side of the instrument itself.
Also, you can't measure temperatures on shiny surfaces. You are then measuring the temperature of what is being reflected.
Know thy limits as Dugger has said. |
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