Engine Performance and Design Philosophy

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49:56

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Leonard Wood's Workshop: Half Size Holley Carb and Ford 429 Hemi Project! (Wood Brothers Racing)

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What happens here

Leonard discusses the impressive performance of his miniature engine, comparing its horsepower output to that of a restricted full-size NASCAR engine from the pre-fuel injection era. He emphasizes that the tiny engine can produce significant power despite its size, showcasing its engineering excellence.

Goal: Explain the miniature engine's performance capabilities relative to full-size counterparts.

Tools and materials

Half-Scale Engine Custom-made — Context for performance discussion

What they say

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properly yet. Okay . Diffusers play a big role in the operation of the carburetor and how it sucks in the mixture . Have you tried running this engine on a test stand? Did you see how much power it produces? Yes, I was just doing one of the carburetors, and before I was finished I had a shaft. He was n't ready. I just held the shaft with pliers. The pliers fell. The throttle opened completely, and the engine burst into flames. Yes. At half throttle , the valves freeze, the hydraulic lifters expand—this is approximately 5,000 rpm, only at half throttle . And it makes about the same power as a 7/8 restrictor plate engine before switching to an injector. Its airflow is about the same. That is, it produces about 425–450 horsepower. This is really cool. Yes, it's

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