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Blog — tubular vs log

Turbo Tech: Log Manifold vs Tubular Manifold

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Turbo Tech: Log Manifold vs Tubular Manifold

More Great Turbo Tech from www.TurbobyGarrett.com There are two different types of turbocharger manifolds; cast log style (see Figure 3.) and welded tubular style (see Figure 4.).    Manifold design on turbocharged applications is deceptively complex as there many factors to take into account and trade off . General design tips for best overall performance are to: Maximize the radius of the bends that make up the exhaust primaries to maintain pulse energy Make the exhaust primaries equal length to balance exhaust reversion across all cylinders Avoid rapid area changes to maintain pulse energy to the turbine At the collector,...

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