In this thread I will try to show what I have done with the rotrex superchargers on the K motors. I have being playing with the Rotrex on a stock K20Z1 for 4 or 5 years, and bought a Dynapack in December last year to do the development properly. Long term I am building 89 x 90.7mm, 88 x 99mm...

I wanted to start my build thread for my new project so here I go. The car is a 79 1200 civic with only 70k miles. I am using the motor (k20) out of my race car for this build. I have two weeks to strip it down and get it to the chassis shop. We will have it at the chassis shop for 4-6 weeks...

What's up K20a.org! Been sitting around quietly reading tons and tons of threads while bored at work and i've finally made just a couple of purchases that are actually K-swap related so i figured i'd start a lil build thread so i can shove all my questions into one spot. I bought the car...

The point of this thread is to compare dyno tuned charts to compare low, mid and top end gains to benefit helping us all understand where power was made and using what mods. if you would like to share tuned calibrations to benefit others understand what different settings affect different...

I would like to know if anybody got their hands on a RSP intake manifold? Did you test it against a RBC intake manifold? The RSP intake manifold is a three piece design that has much longer runners (about 2.5" longer) and a slightly bigger plenum than the RBC intake manifold. It is basically...