Hi, I know the first upgrade to a B16 are the weak cams, but I'm interested in knowing how much power can be squeezed from them with bolt-ons and higher compression. I know power is relative to the dyno, but people build their engines to a power goal, and to a point that can be predicted, and I know there are a lot of experienced people here that can give me an estimate or that have actually built that setup for class-restricted racing. From what I've read, the setup below should make 160whp:
- Ported B16A head with valve job;
- YCP PCT 81.5mm Pistons (12:1 Compression);
- 3" Short Ram with Velocity Stack;
- Stock P30 IM with 64mm TB;
- DC JDM 4-1 2.5" Header;
- 2.5" Exhaust;
- Adequate injectors and fuel pump;
- Running on E100;
Is it a realistic number for this setup unless it's on a high reading dyno?

 

All dynos read different so it's not possible for us to tell what the dyno you end up using will read.

That being said, it's possible to hit 160whp without even more compression, just a good header and intake manifold with a properly sized exhaust should do that.

I made something like 206whp on GSR cams in a 85x89 motor at 12.5:1