King Motorsports Unlimited, Inc. - Mugen Performance Products for Honda and Acura

Mugen Civic Si N1 Class Racer Parts Catalog

Here are all the parts you need to build your own Civic Si N1 racer! This awesome brochure is circa 1985.

Right-click any image to see the full-size version.









Bonus pic: The Mugen Civic Si demo car circa 1986. Mugen Sports exhaust, CF48 wheels, Sports Suspension kit and a set of Yokohama A001R tires. This was and very potent autocrosser and a blast to drive on the street!

Mugen CF-48: BEET-29.3rps



From the archives: A brochure page for the Mugen CF-48 wheels, circa mid 1980's. The finishes include white, polished, silver, white with polished lip, and silver with polished lip.

"BEET-29.3rps -- MUGEN aluminum footwork was born in a circuit. The revolution of MUGEN CF-48 is 29.3rev/sec at 195.8km/h."

Available sizes range from 12" x 4.5" to 15" x 6".




Available sizes range from 12" x 4.5" to 15" x 6".

Mugen Prelude Sports Goods - Product Lineup Circa 1984

From the archives: The Mugen Prelude Sports Goods product lineup, circa 1984. Check out the non CVCC cylinder head conversion. Back in the day the Canadian spec Preludes came from the factory with non CVCC cylinder heads which were highly sought after....

Right-click a brochure page to see the full size version.





Check out this slick electronically controlled variable suspension system:



CF-48 wheels, Sports Muffler Kit, Special Conventional Head Kit, Exhaust Manifold:

The Mugen City Turbo race car!


Mugen and Honda ran a single make racing series using the City Turbos. The cars were based on the production vehicles as were the motors. The motors had larger exhaust, injectors, production type turbo (with 22psi), production type intercooler, and a modified camshaft. These cars did the standing 1/4 mile in 13.5 seconds (which isn’t bad for a frontwheel drive car set up for circuit racing).


They ran very fat tires (9” front and 7” rear). The official Mugen figure for power output is 138+hp @ 5500rpm but the torque is around 22kgm @ 3500rpm (standard twin cam VTEC 1600 has 16kgm, NSX V6 has about 28kgm). It takes little work to produce these power figure in a street motor. The cars from the one make racing series were bought by an Australian entrepreneur with the vision for continuing the series in Australia. Unfortunately all the vehicles were in a warehouse in Osaka waiting to be shipped when an earthquake struck and buried the lot.



Update 2/20/2013:


If you were racing your Mugen City Turbo II in the mid 80's, chances are are you had this Mugen competition oil cooler kit.