This picture shows the nearly completed exhaust port. This is a typical example of our 13B race exhaust ports.

Close up of primary intake port before cleaning and resurfacing.

Close up of secondary intake port.

Same port, different angle.

Close up of inlet to secondary intake port showing where the divider between the two ports used to be.

Ready for assembly. This shows the completed ports after resurfacing, cleaning, and re-painting.

This shows the rotor after we lightened, clearanced, and re-balanced it. This rotor weighs nearly three quarters of a pound less than the lightest stock 12A rotors!

And finally, the assembled motor..

The aluminum block on top of the oil filter stem serves three purposes. It houses the oil temp and pressure sensors, bypasses the oil from the inlet to the outlet (We will be running a remote filter.) and feeds pressurized oil directly to the front main bearing through an external hose.

When we dyno'd the motor, we found that the existing airbox knocked 22 horsepower off the top end, so of course we built a new one. We took several pictures during fabrication, and they are shown below.

We started by machining new velocity stacks with a 3 degree taper.

This shows the stacks welded to the plate which will form the front face of the airbox.

Here you can see the inlet being radiused.

This shot also gives a good view of the headers which we built from 304 Stainless.