The Sr20/Sr22vet thread

[Def]

Originally Posted by SidewaySSS

Has anyone on here used N1 cams on a turbo setup, if so, what are the drawbacks?

I did. No drawbacks. Triggered VVL at about 3800 RPM. Pulled hard as high as I dared rev it (saw a little over 8k a few times, I'm sure it'd still pull at 8600-8800).

This was with an EFR 7163 twin scroll.


The N1 cams are similar to a stock F20C/F22C cam profile (S2000), and those things love boost too.

Honestly, with the N1s, you need a pretty big turbo. A 7163 is the smallest I'd go with. In the EFR world, I wondered what a 7670 would do. Probably still pretty strong response and even more nuts top end. That said, even the 7163 made so much power it was getting a little hard to manage at ~18 psi+(1.2 bar+).

The sound on the big cam is worth the N1s alone.