Mk1
Marty Nygard built the BCNU Mk1 in 2000. It is was designed and fabricated in University City, MO.
Background
Marty explains, "When I was in grade school, I received a ride in a hand built sports car special powered by a two stroke cycle Mercury boat motor. Ever since then, I have
dreamed of building a race car with a similar spirit. In 1996, I decided that the Sports Car Club of America’s D Sports Racer class would allow me to finish that dream. I
developed a design outline, budget, and schedule and began construction of the BCNU Mk. 1 with a goal of performing as much fabrication, welding, bodywork, and painting as I
could."
Chassis
For ease of fabrication, mild steel ¾" square tubing was used for most chassis and suspension members. Aluminum sheet was bonded and riveted to the chassis to provide a
stressed skin and was used elsewhere for a floor pan as well as front and side crush structures. The roll-over bars were as specified by SCCA requirements. The front bulkhead was
¼" thick aluminum plate to allow direct mounting of the steering rack. A seven gallon fuel cell is mounted between the seat and engine. Instrumentation is minimal. Shifting
is via a paddle actuated cable. The seat was individually molded to Marty's aging posterior and is of wet layup carbon fiber.
Suspension
Pull rod type suspension was chosen for adjustability and to permit a lower shock location. Roll center location is fairly typical for current race car design. Koni shocks were
chosen as a less expensive alternate to Penske. Uprights are steel and fabricated for strength rather than light weight. Brakes are Wilwood four piston calipers with Coleman discs
Engine
Because of the opportunity to run at a lower minimum weight (900 lb.) with a chain driven car (vs. 1000 lb. with a transaxle car), and because of their amazing technology, Marty
chose to utilize a motorcycle engine. For him, this became a Honda CBR 900RR (Fireblade) engine. It is essentially stock with a lightened flywheel, upgraded clutch and carburetor
modifications. An external oil filter and Accusump accumulator were added to the lubrication system. The final drive is "locked" with no differential action and uses an
elegant bearing carrier sourced from Omni Fab.
Body
The body shape was developed out of a desire to minimize the quantity of molds. The same mold is used for the front and rear halves of the car with only the location and size of
openings changing. The body is a wet layup of fiberglass cloth and epoxy. There is also a front splitter with diffuser. The wing is a foam core with fiberglass covering. All aero
was refined in the intuitive tunnel.
For Sale - September 27, 2006
Addded info from Sept. 27, 2006 forum ad
Good regional car. Its upright driver position would also make it ideal for autocrossing. Probably best for driver under 200 lb. and with less then 32” inseam.
Body - Lightweight fiberglass, three piece with low frontal area. Molds are included.
Chassis - Carbon steel space frame with stressed aluminum shear panels.
Suspension - Front and rear with upper and lower “A” arms. Fabricated uprights. Pullrod actuated Koni shocks. Adjustable anti-roll bars.
Brakes - Solid Coleman discs with Wilwood four pot calipers.
Wheels - Two sets Keiser aluminum wheels, one with slicks and one with low time rains.
Engine – Stock Suzuki GSXR-1000 with Yoshimura ECU.
Final Drive - Omni Fab sprocket carrier (locked).
Spares - One full set suspension arms plus other misc. pieces.
Trailer - A lightweight, single axle open trailer is also included.
$13,000.00 obo, Take possession at the runoffs.
Marty Nygard, St. Louis, Mo
636-651-1135 (W)
314-727-2411 (H)
mnygard@ne.com
Tidbits
For the curious:
- Marty doubled his original budget
- Exceeded the schedule by 30 months
- Exceeded the weight goal by 80 lbs
The name of the car is based on one of Marty's favorite old television shows, The Prisoner.
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