How do turbochargers wastegates work? What is the difference between internal and external wastegates? Is an external wastegate better than internal? What are the advantages of internal vs external wastegates? Why are wastegates needed in turbocharger applications? Wastegates are essentially bypass valves for exhaust gases to reroute around the exhaust turbine in the event that a peak desired boost is reached to limit the amount of boost an engine creates. The wastegate can be internal to the turbocharger housing, or it can be external. Internal turbos are great for OEM applications, but external wastegates allow for more flexibility with the overall design, and can result in a more productive turbocharger as they can route the exhaust gases further away from the turbo housing. Related Videos: Twin Scroll Turbo - https://youtu.be/T7JTRRlSEYI Variable Geometry Turbo - http://youtu.be/hdjsNPeCLQs Variable Twin Scroll Turbo - https://youtu.be/J06nj5-B_AE Turbochargers - http://youtu.be/zenMEj0cAC4 Purpose of Turbo - http://youtu.be/vaL6LFQHD-k Twin Turbos - http://youtu.be/3wFuR1x-Hes Twin Turbo Diesel - http://youtu.be/DRcmgibm-aA Please feel free to rate, comment, and subscribe! And don't forget to check out my other pages below! Facebook: http://www.facebook.com/engineeringexplained Official Website: http://www.howdoesacarwork.com Twitter: http://www.twitter.com/jasonfenske13 Instagram: http://www.instagram.com/engineeringexplained Car Throttle: https://www.carthrottle.com/user/engineeringexplained EE Extra: https://www.youtube.com/channel/UCsrY4q8xGPJQbQ8HPQZn6iA To help create more videos, check out my Patreon page! http://www.patreon.com/engineeringexplained NEW VIDEO EVERY WEDNESDAY!