Quote:
Originally Posted by whitejdm
Has anyone looked into the stock cam profiles? Does it look like they'll make power past the 8000 rpm range?
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Ah, dug this gem up:
http://www.purcellperformance.com/Te...13%20FR-S).pdf
Those are Toyota's specs, which are not the 0.050" lift or whatever, but just compare with known specs for say 1NZs or something and you'll get the idea. I get the feeling that these are pretty conservative cams meant to maintain acceptable low end torque, because the duration is only a tiny bit higher than the 2GR-FSE (assuming their diagrams depicting cam duration are consistently drawn).
Now that I just saw that diagram again and remembered, the stock VVT system lets you open the intake valves 24 degrees ATDC! PLENTY of room for high duration, high overlap cams then
