How much boost does the CTSC make?
The base kit makes up to just under 5 psi of boost. The “Stage 2” upgrade increases boost by using a smaller compressor pulley to make the compressor turn faster. The base kit uses a 3.8-inch pulley. Stage 2 uses a 3.6-inch pulley which increases boost to about 6 psi. Comptech also has 3.3-inch (about 8 psi) and 3.1-inch pulleys (about 10 psi). 230 whp is nice, but I want more! Then you need to get larger injectors and a smaller blower pulley. Comptech’s “Stage 2” upgrade consists of a reflash, a 3.6-inch pulley, and a new set of injectors that flows about 530cc. In my car, that combination makes 258 whp, with the cat in place. Comptech does not want to solder or crimp injector wires and the Stage 2 injectors are drop-in replacements for the Honda stock injectors. Click here to see dyno comparison between CTSC base and Stage 2. If you have the K-Pro, you can do your own “Stage 2” (or better) by buying the 3.6 or 3.3-inch pulley and retuning the calibration. You’ll need at least 500cc i