Rogue Racing’s VXR/SHO/SVHO 1.8L Yamaha Heat Barrier


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It’s a well-known fact that excessive heat robs horsepower. Many an aftermarket part strives to either extract excess engine compartment heat or attempt to address the increasing temperature at the source. That’s why we’re excited to see what Rogue Racing has created for all 1,812cc-equipped Yamahas: a Intake Plenum Heat Barrier.

The process is fairly simple: Engines create heat. Heat is transferred from the engine to the intake plenum. The air passing through the factory intercooler into the hot intake is almost immediately reheated, thereby robbing horsepower from your engine. This part is designed to keep the engine heat from transferring to the intake plenum.

For every 10-degrees the air temp is increased, one horsepower is lost. And transversely, for every 10-degrees air tempurature is decreased, one horsepower is gained, because the amount of horsepower gained is relative to the temperature of the air entering the combustion chambers.

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While you’re not going to feel the increase in the seat of your pants, the Rogue Racing Heat Barrier for the Yamaha four-stroke VXR/SHO/SVHO engines will decrease your intake air temps and gain you additional horsepower. Even if installed on a completely stock OEM engine, it will show positive gains. No matter the level of your build (Limited or even full-blown Pro Class), decreasing your engine’s intake temps will up your power output.

Your Heat Barrier Kit includes Rogue Racing’s Heat Barrier, new O-rings, stainless hardware, and spacers for the OEM support brackets. This is an easy install that will render you immediate results. And according to Rogue’s Ron Self, “We’ve been making these for years (since 2003) for the Kawasaki four-stroke watercraft and now are offering them for the big Yamaha four-stroke watercraft.”

You can check out the eBay store listing HERE.

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Kevin Shaw

Kevin Shaw

Editor-in-Chief – kevin.shaw@shawgroupmedia.com Kevin Shaw is a decade-long powersports and automotive journalist whose love for things that go too fast has led him to launching The Watercraft Journal. Almost always found with stained hands and dirt under his fingernails, Kevin has an eye for the technical while keeping a eye out for beautiful photography and a great story.

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