Does the exhaust valve open larger when VTEC kicks in? Or maybe it's just the intake? TheCopenGuy 12 Aug 2015 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 Polestar Gives Its Range A Rally-Inspired MakeoverNews There’s A New Six-Cylinder Morgan ComingNews This Porsche Sculpture Sold For More Than A New GT3 RSNews This Perfect-Spec Prodrive P25 Is Heading To AuctionNews This Slippery Renault Concept Is Out To Break RecordsNews The 542bhp BMW M3 CS Touring Is HereSubscribe 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 Porsche Macan EV Review: A Good EV, And A Decent PorscheReviews 2025 BMW M5 Review: Right Car, Wrong BadgeReviews Porsche Panamera Turbo Review: You Really Don’t Need That CayenneReviews Mk8.5 VW Golf R Review: Sensible And SensationalReviews 2024 BMW M4 Review: Now AWD-Only, But I Don’t MindReviews MG Cyberster Review: Electric Isn’t Its Problem
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