Tech

  1. T56 Clutch Slave Cylinder Heat Shield Protection

    T56 Clutch Slave Cylinder Heat Shield Protection

    Installing a late model manual transmission, specifically the TREMEC T56 six-speed, is one of the most popular upgrades for a classic car these days. Especially when something is being rebuilt in a pro touring style. Besides offering more strength and gear selections over the old-style four- and three-speeds the old cars have, these transmissions use a hydraulic clutch actuation that’s way easier on the driver.

    With the T56, the hydraulic slave cylinder that activates the clutch is mounted on the bellhousing. This places the slave unit in very close proximity to the exhaust, especially when long tube exhaust headers and true dual exhaust are installed, which is the case with most vehicles the T56 is being retrofitted into. The body of the slave cylinder i

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  2. Lava Exhaust Wrap Install and Test

    Lava Exhaust Wrap Install and Test

    There are a lot of myths, malarkey and horse manure out there when it comes to exhaust wrap. The biggest pile is that exhaust wrap destroys your headers. This is a misconception that scares people away from using exhaust wrap to increase performance. When you wrap exhaust headers, more heat stays in the header pipes—which is what you want.

    Where the misconception comes into play is with what happens after the wrap is on. There are a multitude of headers out there and therefore a variety of alloys for tube material. Metal alloys have a minimum and maximum temperature rating for what they can withstand. Extreme cold has major effects on metal just like extreme heat does. That’s why aircraft aluminum is designed to withstand extreme cold way more than extreme hea

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  3. Exhaust Gas Temps, Turbos, Turbo Shields and Making Power

    ABOVE: An unshielded turbo means you’re leaving a lot of horsepower and turbo efficiency on the table. Increased turbo lag, lower max boost and increased underhood heat are all negative effects of an unshielded turbocharger.

    You’ll see us talking up using Heatshield Products exhaust wrap and/or insulation to keep more heat in your exhaust system for multiple reasons. First is to cut down on the amount of heat the exhaust system radiates, which can increase underhood temperatures and interior heat; the exhaust pipes running under the floor will heat the floor and transmit that heat into the passenger cabin. Second, keeping more heat in the exhaust system helps increase performance, especially in turbocharged applications. You

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  4. 5 Sound Deadening Myths

    Here at Heatshield Products, we’ve heard just about every sound-deadener myth (and lie) there is. The heavier the deadener, the better. Two layers are better than one. The check’s in the mail.


    So, it’s time for us to set the record straight on the five most common myths:


    Sound-deadening material has to be heavy and thick in order to work well. This simply isn’t true! Heatshield Products makes decreasing the unwanted sound and noise in your hot rod, classic car or off-road vehicle easier than you might think! We focus on the science of reducing unwanted sound and noise inside a vehicle, not simply applying the heaviest material possible to suppress vibration. For example, db Armor™ is 20 percent lighter than competing damping sheets, yet is three times more effective at decreasing sound and noise!


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  5. Big-Block Chevy: Doomed Dinosaur or Immortal Classic Engine?

    Until the LS engine came out in the fall of 1996, getting big power and displacement in a Chevrolet engine meant a big-block over a small-block. Small-blocks at the time were just starting to reliably pass the 400ci mark, but the cost of a big-inch small-block was high. If you were building a serious car, that meant a big-block under the hood. Then when the LS arrived, the sun began to set on the venerable big-block Chevy.


    Recently, we were on the phone with a customer who has a big-block Chevy-powered car with large-diameter headers. He was tired of the work involved with removing the starter at least once a year because the headers kept cooking it. A simple fix was one of the more popular thermal barriers from Heatshield Products, the Lava Starter Shield™, and it typically doesn’t require removal of the starter for installation.


    Lava Starter Shield wraps around the

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