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 NewsNews Abt Unveils Audi Quattro Restomod With 523bhpNews Ford Mustang GTD Slashes 5.6 Seconds From Nürburgring TimeNews A Jim Clark Tribute Lotus Emira Is ComingNews The VW Polo Is 50: Here Are Our Favourite VersionsNews This Mercedes CLK DTM AMG Duo Could Be Yours For Nearly £800kNews 717bhp Aston Martin DBX S Revealed, Gets Valhalla TurbochargersSubscribe 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 ReviewsReviews Citroen e-C3 Review: Cheap, But Others Are More CheerfulReviews 2025 Toyota Land Cruiser On-Road ReviewReviews 2025 Renault 5 Review: Simply BrilliantReviews Cupra Formentor VZ TSI Review: Quick, Capable, But Lacking EmotionReviews Cupra Leon VZ TSI Review: The King Of LeonsReviews 2025 Dacia Bigster Review: A Different Kind Of Horse Power
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