Quote:
Originally Posted by TheRealSy90
So it's not necessary to update the valvetrain like you are doing with the P12 head? If it can already rev higher than p11 why upgrade the internals? You're already at a way higher potential than the det head.
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This is a silly statement. Was it necessary for me to port the head either? No, but it's better. Was it necessary for me to put an EFR on it? No, I could have spent half the money and gone with a Garrett like most people but the EFR is better.
I'm not in this for necessary, I'm in this for performance. So when I can get better valve springs for a measly $80 and guarantee I'm not going to have valve float, I'm gonna do it.
Personally, I'd feel safe taking a stock P11 to 7.5-8k, a stock P12 to 8-8.5k and either with springs to 9k+. I'll be setting my rev limiter to 9k, so I want that extra safety.