You dont see a lot of turbocharged cars with dual VVT setup like the i-Vtec (Porsche and BMW does it, but I call gimmicks, and they are continuously variable VVT's anyway, not the locked/stepped setup like VTEC). I don't actually think it's necessary..... Since VVT is helping to get fuel and air in the cylinders... and FI does the same thing... It's like having a big hammer (Forced Induction) and a small hammer (VVT), I don't know if you actually NEED both, since a lot of folks turbocharging civic engines end up locking the valve/cams to 'OPEN' anyway?
Case in point, look at the K23A1, the turbocharged K-series in the Acura RDX.
- No Vtec on exhaust side
- Intake side Vtec is vastly different from the rest of the K-series as well... it's not really a VTEC even on the intake side
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