Nissan vtc engine Brett Dempsey Engineering - Nissan VTC Pulleys Click here to identify your VTC type. Stock Nissan and the engine will begin to idle rough due to increased valve overlap. BDE rebuilt VTC pulleys... Source Source Source Source Source Source Source Source Source Source Read Also: Nissan vtc 2008 Valvula vtc nissan Nissan silvia running rich rough idle intermittent Nissan vtc sprockets Nissan vtc Nissan sentra pulleys