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Date Posted: 20:27:21 04/12/06 Wed
Author: Andy Brink
Author Host/IP: 12-216-161-86.client.mchsi.com / 12.216.161.86
Subject: Re: Track Tire Rule???? Not a GOOD idea!
In reply to: racer 's message, "Re: Track Tire Rule???? Not a GOOD idea!" on 22:44:01 04/04/06 Tue

>>Well, it looks like people are getting cold feet
>>(namely Sweet Springs) about the new minimum 40
>>durometer left rear tire specification. Once again, I
>>believe we are all making this MUCH more difficult
>>than it needs to be.
>>
>>First off, EVERY durometer and EVERY durometer user
>>has the potential of taking very different readings.
>>We all must read the PROPER method of using a tire
>>durometer (here is a nice link:
>>www.intercomp-racing.com/tech/Measuring Tire
>>Hardness.pdf).
>>
>>Second, the NMMA MUST supply the sanctioned tracks
>>with a high quality durometer and a Test Block Kit.
>>This Test Block Kit would have a Type'A' 40 durometer
>>block and a Type'A' 50 durometer block. These Test
>>Blocks would need to be calibrated annually. The test
>>blocks purpose is to 'verify' that a durometer is
>>working within an acceptable range. A racetrack is not
>>a laboratory, but we can use these test blocks to set
>>the aim point for a durometer on any given night. We
>>can also make these test blocks available for the
>>racer to verify the function of his durometer. This is
>>by no means a PERFECT solution, but it is the best
>>available. These blocks are roughly $50 each, plus the
>>yearly calibration check.
>>
>>Each tire will have a large (I have seen five to seven
>>points) variance across the tire due to the molding
>>process. Also, depending on if the tire wears even
>>(smooth) or is "ragged out" this too will change the
>>readings. The tire surface needs to be smoothed and
>>properly prepared prior to taking the reading.
>>
>>If we merely limit compounds (instead of durometer)
>>then tire doping will become essential and we really
>>do NOT want to get into policing that!
>>
>>Racers will PUSH these durometer rules and run the
>>tire as soft as possible - but that risk is up to them
>>- no one is putting a gun to our head to run that
>>soft, these rules are a MINIMUM requirement!
>>
>>I believe we need to continue to limit the minimum
>>durometer, but we MUST have proper guidance, tools and
>>test standards to minimize variance night to night and
>>track to track.
>>
>>We also have to get our sanctioned tracks to STOP
>>changing NMMA approved rules - that kind of defeats
>>the purpose of a National Rulebook!!!!
>i agree with bill i still think your left rear tire
>rule (SUCKS)


I disagree with taking technology away from racing. I dont like what the nmma or sweetsprings has done. You wont see me this year exclueding July 3. Go outlaws!

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