Quote:
Originally Posted by serialk11r
Oh snap I just realized the Si loses breath pretty fast at the top of its rev range (200hp at 7000...wtf?), so its off the line acceleration is very high. I guess it's probably a close call then.
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No not the K24Z7, the K20Z3. The K24 requires a light to tell you that it switched cams...
Quote:
Originally Posted by TheBoogieBot
VTEC is just the way the valves work. Toyota and pretty much every auto maker these days makes their own version of VTEC. They do use VTEC on turbo cars also though.
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Not really. VTEC in the tradition sense is a cam-switching system. VVT is a cam-phasing system.
To put it very simply; VVT was widely adopted by the automotive industry. Engines produced today without a intelligent VVT system are stone age basically (I don't know if there are any). An intelligent VVT system is included with VTEC engines as current i-VTEC.
Most VTEC cam switching was not as widely adopted. Toyotas' 2ZZ-GE is the only Toyota engine to mimic the VTEC system with the single cam swap VVTL-i. Many manufactures are looking into variable that control valve lift variably rather than a cam switch. And many didn't even explore a cam switch system in it's prime.