Releasing reverse oil pressure through the valve body allows the car launch. I can’t tell you how many transmission valve bodies we had cut apart to follow oil paths in order to learn about having it release faster.įor the uninitiated, on the starting line, the transmission is locked in first gear and reverse by way of a valve body. In the early days of super racing, we had to work to get our car to cut a light. Drag racing has always been about tweaking on your car and making it do better every time. This is just my perspective but I think there are several who will agree. This change would only affect the super categories (S/Comp, Gas & Street).Īs I stated earlier, I don’t believe that’s the reason for diminishing car counts, but it will make it easier for some to “get a light.” But is that what we should be doing? 03 compensation and return the “Tree’s timing to a true. Personally, I don’t believe that’s the main reason for losing cars, but nonetheless, the NHRA made the decision weeks ago to eliminate the. Over the years, it’s been suggested by some that we were losing racers because they couldn’t “get a light,’ and therefore left to race in other forms or quit altogether. This made it harder for some racers to “get a light,” but most everyone adapted. 400 in between the amber and green bulbs would now actually be a. 03-or-a-second compensation to the categories which utilize the pro tree. This caused the bulb to light up faster causing it harder to “read,” and therefore a rash of red-lights. Then came the LED.Īn LED bulb is either on or off, there is no filament to warm up or cool down. Savvy racers realized the ability to “read” each of the bulb’s cycles and change their reaction times by the “read” of the bulb. Of course all this happens in milliseconds, but it can be seen. The final and third cycle is when the electricity is taken away from the bulb, the filament still stays glowing until it hits full cool down, at which point the bulb is considered off. When the electricity is first fed to the incandescent’s filament, it must heat up before it gets to fully lit. An incandescent bulb performs in three separate cycles. This caused a litany of red-lights in Pro Stock Motorcycle class as well some Sportsman racers in the super categories.Ī little explanation first. The problem reared its ugly head in the speed the new LED bulbs lit. In 2003, the NHRA changed to LED bulbs on the ‘Tree to combat the problem of the incandescent bulbs burning out from the massive vibrations associated with the Top Fuel and Funny Cars passing by. My $.02, but this should raise some eyebrows. Several weeks ago, prior to the 2022 season of the NHRA Lucas Oil Drag Racing Series and the Camping World national events beginning, the NHRA announced a change to the Christmas Tree as far as the super categories are concerned.
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