Does the exhaust valve open larger when VTEC kicks in? Or maybe it's just the intake? TheCopenGuy 12 Aug 2015 Previous I dont understand why people say JDM when it means beginner driver. Next The new Lamborghini Revuelto is here! Sponsored PostsComments Or both Depends on the version of VTEC. All DOHC VTEC systems change the timing and lift on both the intake and exhaust valves. Most of the SOHC VTEC systems only affect the intake, although the newer J37A4 has VTEC on both the intake and exhaust. Okay, thank you for the information Both Latest News News You Could Buy A Porsche 911 Rallied By Ken Block News Ram Cans Plans For Electric Pick-up News Japanese Toyota GR Yaris Owners Can Get This Awesome New Aero Kit News S1 Lotus Elise Revived As 600kg Single-Seater News Here’s The Toyota GRMN Corolla Before You’re Supposed To See It News Toyota Set To Reproduce New Parts For The 4A-GESubscribe to our NewsletterGet the latest car news, reviews and unmissable promotions from the team direct to your inboxFor more information see our Privacy Policy Leave this field blank Latest Reviews Reviews 2025 Audi E-Tron GT Review: Does What A Fast Electric Audi Should Reviews Cupra Terramar VZ Review: A Case Of Unfulfilled Potential Reviews 2025 MGS5 Review: Invisible, But Solid Reviews 2025 Mercedes-AMG E53 Review: A Muted (Stop)Gap Reviews 2025 Porsche Taycan Review: Still The Best Of Its Kind Reviews 2025 Renault 4 Review: What Difficult Second Album?
Depends on the version of VTEC. All DOHC VTEC systems change the timing and lift on both the intake and exhaust valves. Most of the SOHC VTEC systems only affect the intake, although the newer J37A4 has VTEC on both the intake and exhaust.
Comments
Or both
Depends on the version of VTEC. All DOHC VTEC systems change the timing and lift on both the intake and exhaust valves. Most of the SOHC VTEC systems only affect the intake, although the newer J37A4 has VTEC on both the intake and exhaust.
Okay, thank you for the information
Both