fuel temperature

  1. Use Thermal Barriers to Prevent Vapor Lock

    Whether your vehicle has a carburetor or fuel injection, vapor lock can bring it to a standstill, causing hours of frustration. If you’re a racer, it can put the car on the trailer well before you’re ready to leave the track. But proper use of thermal barriers can prevent vapor lock, no matter how hot the day gets.

    Vapor lock happens when the temperature of the fuel heats up enough to transform it from liquid to vapor. And since fuel pumps are designed to pump liquid, not air, vapor lock effectively starves the engine of fuel. Without the proper volume or pressure of fuel, the car will run rough or completely stall. Vapor lock typically happens during summer months, when high outdoor temperatures are combined with high engine and exhaust heat. And high altitude also makes a vehicle more prone to vapor lock.

    The solution is to protect the fuel lines from getting hot in the first place.

    For carb-equipped vehicles, one of the easiest solutions is to use a

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  2. Keep Fuel Rails Cooler and Make More Power with FR Shields

    Fuel rails see a lot of exposure to radiated heat since they sit atop the engine, plus smaller engine compartments mean less airflow to help move heat out. Lower-profile hood lines and factory engine covers on modern cars can also trap heat, despite composite intakes, aluminum heads and aluminum blocks that dissipate heat faster. And hot gasoline hurts performance.

    As the temperature of fuel increases, it becomes more vaporous, and in a closed system it can build pressure that will cause fuel-flow irregularities, especially within the fuel rails. Hotter fuel is also less dense, so not as much fuel charge can be delivered to the cylinders, causing a potential lean issue that leads to detonation, making the computer to pull timing out of the ignition system to eliminate the detonation, which reduces horsepower. Want to know what reduced ignition timing does to power output? Just one degree removed from the engine’s normal programmed timing can equal a loss of 10-12 horse

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  3. The Benefits of Keeping Your Fuel Cool at the Track

    The fuel jug. Other than when you fill it up, how often do you think about it? Probably never, but consider this: Many folks have an open trailer and the fuel containers are in the bed of their pickup. That means the fuel jug is sitting in the sun, baking like roadkill on a Texas highway. The fuel gets hotter and more vaporous as it bakes, and, simply put, hot fuel hurts performance, while cool fuel helps performance.


    The HP Cool Can Shields™ from Heatshield Performance are designed to fit around standard round and square fuel jugs. They significantly reduce the heating effect of solar energy on the jug and the fuel inside, and also protect the jug from UV rays, which can degrade the plastic material and shorten its lifespan by as much as 50 percent. The HP Cool Can Shields are easy to remove from the jug when it’s time to

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