Monthly Archives: June 2018

  1. Controlling Underhood Heat on a Jeep Wrangler 4.0 – Part I

    The Jeep 4.0L inline-six was the last true Jeep/AMC engine design before Chrysler bought everything and folded it into the Pentastar family. It was the final derivative of the old 4.2 inline-six and debuted in the 1987 model year. It’s last year in an American Jeep would be 2006, when the TJ Wrangler ended production. But you’re not here for a history lesson, so for the complete background on the 4.0L click HERE.

    What does this have to do with heat?

    The 4.0L is a massive hunk of cast iron American greatness. But all that cast iron means it’s a giant heat source under the hood, and once it gets hot it holds that heat for a while. And everything around it underhood soaks up all that heat, which can negatively affect performance, reliability, and component life. But with some application of Heatshield Products thermal barriers, the amoun

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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. Will a Turbo Four Cylinder Be Good in a Full Size Truck?

    During the Spring the Heatshield Products R&D team was hard at work on new products, ranging from some new thermal barrier materials, our recipe for a good tasting beer that helps you lose weight, ovenless brownies, and our moon mounted planetary laser system. In the meantime, we've got a couple of smaller products that are finished up and now available to show you.


    HP Power Anchor



    Installing and removing your Heatshield Armor Series exhaust insulation is now a lot easier with our new into a removable jacket with our universal HP Power Anchor kit. Each kit includes a lacing hook, speed washer, and blind rivet. All are made from

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  4. Will a Turbo Four Cylinder Be Good in a Full Size Truck?

    The tightening CAFE (Corporate Average Fuel Economy) standards enacted by the previous administration are finally hitting home, and have automakers looking at engine setups that normally wouldn’t be considered for trucks. After decades of being too shy to dance with the power making temptress known as boost (beyond anything that is diesel) American manufacturers have become rather smitten with using boost on normally anemic, small displacement engines to pump up their power numbers and make them usable in applications they normally wouldn’t, such as full size trucks.


    Why? It used to be full size trucks and SUVs were exempt from CAFÉ standards, but that changed after a new mindset came in with the previous administration, and the immense popularity of trucks and SUVs garnered them much more attention from the pollution police. With the boom lowered, automakers looked to the first area that would help them improve fuel economy, weight. This was a major factor in F

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