Heat Wrap Tech Tips & News – Welcome to the Heatshield Blog

Heatshield is your source for USA-made heat wrap products, as well as for the latest news, industry trends, and tutorials. In the blog articles below, you can read about topics such as why we make the best header wrap and intake heatshield materials on the market, pro tips on installation, product applications, and more.

When it comes to turbo heat wrap and thermal barriers, no one beats our product quality and professional expertise. Thanks for reading, and please feel free to contact us with any questions.

  1. Thermaflect Sleeve Quick Test

    Fuel line protective sleeve being installed in a car engine.

    The Thermaflect Sleeve Quick Test: How Our Fuel Line Protective Sleeve Stops Vapor Lock

    The summer’s been hotter than a sauna in the seventh level of hell. For anyone with a carbureted engine, that means the risk of vapor lock increased dramatically.

    Quick Heatshield Products tech refresher: Vapor lock is when the fuel in your vehicle gets too hot and starts to go from liquid to vapor inside the lines. If your lines are not properly protected with a fuel line protective sleeve, vapor lock will keep the fuel from flowing and leave you stranded, sweating someplace while you wait f

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  2. 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 t

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

    How to Keep Fuel Rails Cooler and Make More Power with FR Shields

    At Heatshield Products, we’re big proponents of automotive heat shields and fuel line insulation. Fuel rails see a lot of exposure to radiated heat since they sit atop the engine, plus small engine compartments mean less airflow to help move heat out. Lower-profile hood lines and factory engine covers on modern cars c

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  4. 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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