Engine Masters Season 7 Episode 118 Exhaust Cutouts

In Engine Masters season 7 episode 118, titled "Exhaust Cutouts," the team dives into the world of exhaust cutouts and their impact on engine performance. The episode begins as the hosts introduce the concept of exhaust cutouts, which are valves that can be added to an exhaust system to bypass the mufflers and allow for more direct flow of exhaust gases. They explain how this can increase horsepower and improve the sound of a vehicle, but caution that it can also lead to a loud and obnoxious exhaust note if not installed properly.

To test the impact of exhaust cutouts on engine performance, the hosts start with a baseline dyno test of a Chevy 350 engine with a standard exhaust system. They then install a set of manual exhaust cutouts before repeating the dyno test to see how much power and torque are gained. The results are impressive, with a significant increase in horsepower and torque across the entire RPM range.

Next, the hosts analyze the sound of the engine with and without the cutouts, demonstrating how the exhaust note can be dramatically altered with this modification. They also cover the potential drawbacks of using cutouts, such as increased noise pollution and the possibility of damaging engine components if used improperly.

To further explore the impact of exhaust cutouts, the team takes a closer look at the physics of exhaust flow and pressure. They explain how a properly designed exhaust system can create a scavenging effect, where exhaust gases are drawn out of the engine more efficiently, leading to increased horsepower. They demonstrate how the addition of cutouts can disrupt this scavenging effect, and explain how to find the right balance between maximum power and a tolerable exhaust note.

Throughout the episode, the hosts provide technical insights and useful tips for anyone considering installing exhaust cutouts on their vehicle. They also showcase a variety of different cutout designs and demonstrate how they can be installed on a variety of different vehicles. The episode is a great resource for anyone interested in improving their engine's performance and changing the sound of their vehicle's exhaust.