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The Kneeslider

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AMA Rules Cause More Controversy

By Paul Crowe

Fresh off the Buell XBRR dust up where they may have been a bit lenient in applying rules about what qualifies as a legal motorcycle for Formula Xtreme, the AMA has now created another controversy, this time penalizing Ricky Carmichael for using illegal fuel, which, upon testing, was found to have trace amounts of lead and as a result he was penalized 25 points. Hmm …

What exactly would trace amounts of lead in the fuel enable Carmichael’s bike to do? Adding lead, back in the old days when it was allowed in gasoline, served two purposes (if my understanding is correct). One is that it helped lubricate the valves. Old engines designed for leaded gas had to have their valve seats replaced to make up for the removal of the lead, otherwise the seats would recede into the head. The second purpose was as an antiknock compound for high compression engines. Unleaded fuel required lower compression ratios. But, and again my understanding may not be complete here, adding lead to the fuel of an otherwise unmodified engine, would not yield any performance advantage, somewhat like buying premium at the pump when your basic regular is sufficient. If Carmichael’s engine was not modified to take advantage of leaded fuel, he didn’t, and couldn’t, gain anything by it and indeed, lost huge due to the penalties. If the added lead was intentional, why didn’t they modify their engine to make use of it? Beyond that, the obvious question is, why would someone on track to win the championship do something like this in the first place? Carmichael is usually up front anyway.

The AMA may wish to examine the fuel supplier very carefully to be sure the contamination could not have occured there or in any other way. I have no way of knowing whether someone on Carmichael’s team did something wrong but logic certainly points away from that and this now super strict AMA rules enforcement is quite a contrast to what occured just weeks before.

Since I don’t follow supercross or motocross very much, I may be missing something here but at first glance, the AMA seems to have stepped into another mess.

Posted on March 1, 2006 Filed Under: Engines, Motorcycle Racing


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Comments

  1. RATTSBIKES says

    March 1, 2006 at 2:53 pm

    Carmicheal may just be a target from soneone else, but who knows?? The problem I have is that there is no recourse to be taken they cannot address the problem or put in a grievance to the AMA at all, so the desicions are all arbitrary and no input from the accused? I though you were inoccent until proven guilty?
    RATTS

  2. aaron says

    March 1, 2006 at 8:53 pm

    I’d have thought that the rules would state something like “must run pump gas” with some heavily regulated magic droplets allowed (octane boosters, stuff available at the corner speed shop). then they could bring a pump with said gas to every event. and then sell the rights to a gas company…

    “every winning superbike in AMA (and SX, formula XTREME, etc – tailor to your market) run BRAND X gas.”

    damn.

    i just realized that some jackass who isn’t worth his marketing degree is going to make a bunch of money after reading this post, and not a penny to poor aaron. hmmm.

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