Ep 44. Carb Size Matters

In the 44th episode of season 4 of Engine Masters, titled "Carb Size Matters," the team tackles the age-old question of which carburetor size is best for a high-performance engine. The team tests a variety of different carburetor sizes on a Chevy 383 stroker engine to determine which size provides the best performance in terms of power, torque, and throttle response.

The episode begins with the team explaining the importance of carburetor sizing and how it can affect engine performance. With so many different carburetor sizes available, it can be difficult to determine which one is best for a particular engine. The team sets out to test several different carburetor sizes, ranging from 650 to 950 CFM.

To start the testing process, the team installs the smallest carburetor, a 650 CFM unit, onto the Chevy 383 stroker engine. They then take the engine out for a test drive to see how it performs. While the throttle response is good, the team quickly realizes that the engine lacks power and torque.

Next, the team installs a larger carburetor, a 750 CFM unit, onto the engine and takes it for another test drive. With the larger carburetor, the team notes an immediate improvement in power and torque, with the engine delivering a much smoother power curve.

The team continues testing with progressively larger carburetors until they reach the largest carburetor in the test, a 950 CFM unit. Despite its size, the team notes that the throttle response is still good and the engine continues to deliver improved power and torque.

Throughout the testing process, the team provides detailed explanations of how carburetor sizing affects engine performance and what factors go into determining the optimal carburetor size for a particular engine. They also provide helpful tips on how to properly tune a carbureted engine for maximum performance.

At the end of the episode, the team summarizes their findings and reveals which carburetor size provided the best overall performance for the Chevy 383 stroker engine. They also offer some final thoughts on carburetor sizing and how it can impact engine performance in different applications.

Overall, "Carb Size Matters" is an informative and engaging episode that provides valuable insights into one of the most important aspects of engine tuning. Whether you're a seasoned mechanic or a novice enthusiast, this episode is sure to provide valuable information and advice on how to optimize your engine's performance.