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 Gumball 3000 2016 route map by my3000miles.com 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. Both Latest News News Classics To Stay Tax-Exempt In UK Following Budget News Europe’s Car Safety Agency Wants To Fix Annoying Driver Assist Systems News UK EV And PHEV Drivers Will Pay Per Mile From 2028 News Audi Wants To Make Its Cars Easier To Skid With 2026MY Updates News Shocker: Abarth Might Bring Back Petrol Power News Updated Dacia Jogger Brings More Kit For (Slightly) More MoneySubscribe 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 Cupra Formentor VZ5 Review: We’re Not Sure Why It Exists, But We’re Glad It Does Reviews Volvo EX30 Cross Country Review: A Good Car Spoiled By Software Reviews 2025 Vauxhall Mokka GSE Review: Decent, But It Has One Big Problem Reviews 2025 Cupra Leon Estate Review: A Superb All-Rounder In A Class Of One Reviews 2025 Nissan Ariya Nismo Review: Yikes Reviews 2025 Seat Ibiza Review: Satisfying Supermini Survivor
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.
Both