thermal barrier

  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. Keeping Your Airbox Cooler Using Heatshield Products

    When it comes to performance, cool air is one of the biggest factors. Cooler air is more dense, so during induction more oxygen is sucked into the cylinders. The more air in the cylinders, the more power an engine can make. With fuel injected engines, cool air also effects how the computer controls the ignition system.


    All modern fuel injected engines have air intake temperature sensors. The name is self-explanatory. The temperature of the air entering the engine is measured, and the ECM then makes the necessary adjustment to ignition timing, air/fuel ratio, and more to keep the engine operating within its set parameters. How much does warmer air affect this?


    Mainly it’s ignition timing that comes into play when air intake temperatures start to rise. When air intake temps get too warm and there’s a risk of detonation, the ECM will reduce ignition timing to guard against detonation occurring. Just one degree of reduced timing can cost

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  3. 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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  4. Heatshield Products Year in Review

    It was a busy 2017 for the Heatshield Products blog. We’ve posted lots of helpful how-to and tech blogs on our various products to help you solve your thermal and acoustic problems to improve reliability, increase horsepower and simply enjoy driving your hot rod or 4x4 more.


    We decided to do a Year in Review so you can find all of the useful things we covered in 2017 in one place for easy reference, and just in case you missed a blog or two along the way. And make sure to stay tuned, as we’re already gearing up to bring you even more informative, helpful, and entertaining blogs in 2018!


    Protect Fuel Hose, Wiring and Brake Lines from Heat

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