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Rear Wheel Dyno Test


TexaST-1

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I have to state the obvious. Everyone knows that an accurate rear wheel dyno test to determine wheel Horse Power is done in 4th gear or the closest 1:1 ratio available. In all American Cars it is 4th.

 

I thought everyone knew this. I was overseeing a dyno test very recently and was amazed when the gentleman at quick car told him to dyno his car in 3rd. This will give a false and lower horsepower reading.

 

I am currently going to make an addition to the rules for GPC to clarify this testing method.

 

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I think that most at this level should know this. I think if people are concerned about horsepower rating, they should state that. How does the rule on requesting a dyno go? I live in Corpus Christi and there are not any dynos within 125 miles of here. If someone has a complaint about my horsepower rating from a sanctioned NASA dyno day, are they going to pay my 6mpg for 250 miles and the dyno fee? I already paid for all that with my trip to Houston on 1/28. I was just hoping for some clarification. We are all in this for the fun of racing. I think that we need to keep that in mind.

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Actually the dyno at the track will be the official dyno for the car. Don't get too close to the limit as a couple of the AI guys last year had issues with the dyno/scales.

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