SR20DET Redlines

S15Hybrid · #1 07-03-2002, 10:09 AM

What are the redlines on the S13 S14 and S15 engines. And when does the VVT kick in on the S14 and S15.

J SPEC SilEighty · #2 07-03-2002, 09:59 PM

S13 SR's actually have the highest redline at 7500 RPM
S14 and S15 SR have a redline of 7250 RPM

The S13 SR has a higher redline because it has a a "high-port" intake manifold. The higher ports give you a straighter shot into the combustion chamber. The "low-port" SR's (S14 and S15) have smaller ports and a tighter bend leading to the intake valves. That's why the S13 SR has a higher redline. Those redline numbers are where the redline starts on the tach.

S15Hybrid · #3 07-04-2002, 12:15 AM

when does the VVT kick in?

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