Quote:
Originally Posted by mopar jeff
So if my combo has a factor of 15.01, then I would have to add 15.01 pounds for every horsepower they assess?
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No, 15.01 is the factor that determines what class your car falls in. Say the rated horsepower was 250 and the shipping weight was 3753, this would give a factor of 15.01. O/SA is the natural class for car with factors of 15.00-15.99. This means that you could in N/SA, O/SA, or P/SA at their appropriate weight breaks. This car would have to weigh (15x250) + 170= 3920 lbs in O/SA. If the horsepower rating were changed to 255, the factor would be 3753 (shipping weight) divided by 255 (the new horsepower rating) which is 14.72. This would make it a natural N/SA car and it could run M/SA through O/SA at the appropriate weights.