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

Happy Holidays 2012!


Happy Holidays from King Motorsports to all our customers, partners, friends and family!


Our holiday schedule for 2012:


> Dec 24 and 25 - CLOSED
> Dec 31 and Jan 1 - CLOSED


2012 was a big year. A US presidential election, Hurricane Sandy, the 2012 Summer Olympics and continued turmoil in Syria and Egypt. We also faced tragedies domestically in places like Newtown, Aurora and even here in West Town, Wisconsin.


There's no question we love cars, horsepower and motorsports. This holiday season we are especially thankful for the people in our lives that inspire us to stay passionate.


May your holidays be filled with those kinds of people (and may your tires stay on the road)! :)


Bonus pics: Here's our shop this morning after Wisconsin's first sizable snowfall!



After digging out the parking lot and letting some sun in ... :)


Meor Amir's 2005 JDM DC5 Type-R (Updated)


Always a treat to receive pictures from our customers. Here is Meor Amir's 2005 JDM DC5R.

 

This is Meor's build:

2005 JDM DC5 Type-R

Exterior:

> Mugen front bumper with canard
> Mugen carbon hood
> Mugen side skirts
> Mugen rear lip with custom carbon protector
> Ings N-Spec wide fender
> Craft Square TCA-F competition mirrors
> Lamborghini Gallardo's Telesto Grey paint

Wheels/brakes:
> Custom powdercoated Volks CE28 front 17 x 8.5JJ +30, rear 17 x 8.5JJ +47
> Rays wheel nuts
> Toyo Proxes R1R 235/45/17
> Custom yellow DC5R Brembo calipers
> Endless 500deg brake pads
> Goodridge steel braided brake hoses

Handling:
> TEIN Type Flex with Swift Japan springs
> Cusco 25mm anti-roll bar
> Mugen front tower bar
> Skunk2 rear camber kit
> Skunk2 rear lower control arm
> Skunk2 rear tie bar

Engine/Gearbox:
> K20A Type-R
> Mugen airbox
> Custom header
> Skunk2 Megapower R catback
> Hondata K100
> Exedy racing clutch
> Civic Type-R 5.062 final drive

Interior:
> Mugen boss kit
> Mugen steering wheel
> Mugen aluminum gear knob
> Mugen rear tower bar
> J's Racing C-pillar bar
> Password:JDM dry carbon fuel pump cover
> Ecliptech progressive shift light
> K-Tuned shifter box replacement hardware

"The car is daily driven and I occasionally bring it to the track. Future plans include K24 and to further complete Mugen interior (if money permits lol)."

Thanks Meor for the pics and specs!!!



 

Update Dec 2012:

 

Thanks Meor for the new pics! Beautiful!

 

 

 

Mugen and the First-Gen CRX


There are few Honda enthusiasts who don't have a soft spot in their hearts for the CRX. We found a few rare pics in our photo archives of Mugen's influence on the first-gen CRX in the 1980's.


Here is one of the two Mugen prototype CRX's built for American Honda in 1984. These cars were used as a test bed to develop parts for the American market. Some of you may have never seen CF-48 wheels with the aero discs installed on them. So few aero discs have survived the years.



Test fitting the Mugen exhaust to a brand new CRX Si in 1986 at American Honda in CA. Damn- they were cool....We always loved the way the Mugen kanji badge peeked out from under the bumper!





The Mugen CRX (called the "CR-X" in Japan) demonstrated the huge tuning potential of the Honda platform and from that, a whole generation of Honda tuner enthusiasts were born!


We love the white on white look with the racing red equator line and clean gray door graphics!



When it was introduced in 1984, the CRX turned the automotive world upside down. A small, efficient package that punched far above its weight. The simple addition of a set of Koni shocks and a set of 175/70/13 Yokohama A001R tires would turn any CRX or Civic into a world-class handler with just enough horsepower to surprise the many unsuspecting driver of "marque" cars...



The Mugen body kit accentuates the simple design of the CRX without being over-styled.


Mugen SCCA GT-4 CRX (Updated)



The Mugen SCCA GT-4 CRX. This race car was very important step in Mugen history, as it introduced Mugen to the American market. It was designed and built in 1984 by the Special Projects division of American Honda in Gardena, CA.


This team was led by Dix Erickson, Charlie Curnutt and Mugen lead engineer Takashi Uno. The 1.5 EW engine was designed and produced by Mugen and produced 165hp. Design features included a dry sump lubrication and twin 45DCOE Weber carbs on a Mugen intake manifold. The transmission was a close ration 5 speed also designed and built by Mugen.


This car destroyed the GT-4 competition and won several SCCA National Championships between 1985 and 1989.


Yes- Mugen had arrived.....



Here is the exhaust manifold for the GT-4 CRX being made at Mugen. The Mugen technician that built this exhaust manifold also built all the early Honda F1 exhaust manifolds!




Here is a finished Mugen GT-4 exhaust manifold. Amazing craftsmanship!




Here is a very rare picture of the Mugen GT-4 CRX at a pre-race season test session. Notice no decals, numbers or race markings yet- early days in its life as a racer!




Update 8/14/2012: An old friend from American Honda "Special Projects Department" stopped by yesterday and dropped off some really great old articles on the Mugen GT-4 CRX. Check out this one from the 1985 Runoffs edition Sports Car Magazine:



Update 10/19/2012: Below are scans from an article about the SCCA GT-4 RACING PROJECT. The race car was a key promotion for the launch of Mugen performance parts in the US. It was quick, biblically quick ...


Here's the text of the article and specs:

 

The 1984 American Honda Motor (A.H.M.) and Mugen jointly decided to enter into Sports Car Club of America GT-4 racing using the Honda CRX. The CRX is the car that Honda produced as their second generation sports car. When the CRX started rolling off the production assembly line, A.H.M. and Mugen started making race plans. Mugen took care of engines and drive trains, and A.H.M. took charge of the suspension and body works, which were done by Dix Erickson and the Special Project Team.

 

In 1984 two prototype engines were made and sent to the United States. The engines were tested in the stock CRX body. Based on those prototype engines, 3 race engines were built by Mugen's Formula-II racing team. The engines were equipped with a dry sump lubrication system. This project was completed within two months. Even though they primarily worked on Formula-II V-6 engines, the team really enjoyed developing this in-line 4 cylinder engine.

 

Meanwhile, Dix Erickson's team was hard at work, stripping down the CRX and installing the roll cage. They believed in the CRX's potential and left the standard suspension layout on it. They did not use tube frame construction for the same reason. The body was painted in traditionaly Mugen colors.

 

In May 1985 the car won its very first race at Road Atlanta. After that, gears, exhaust systems, brakes, wheels, and suspensions were continually refined. In 1985 Doug Peterson won the National Championship in GT-4 driving the CRX and 1986 Parker Johnstone won the National Championship in GT-4 driving the Mugen CRX.

 

"On August 8th, 1985 we went Carlsbad Raceway with Mugen GT-4 car to attend SCCA National race. There we saw several GT-1, 2, 3 cars, and our GT-4 CRX had to race with them. But by Doug's Driving, at the qualifying Mugen CRX beat big cars and got the pole position. During the race it was repeated again, Mugen CRX finished First and became the overall winner."

 

QUALIFYING RESULTS

 

POSITION - CLASS - CAR - DRIVER

1 - GT-4 - MUGEN CRX - DOUG PETERSON

2 - GT-2 - FERRARI 308-GTB - HOWARD F. PYNN

3 - GT-1 - CHEV CORVETT - JIM DOUGHTY

4 - GT-3 - DATSUN 200 SX - JOE CARR

5 - GT-4 - DATSUN 510 - DEREK MCKESSON

6 - GT-1 - CHEV CAMARO - DAN CROFT

 

DESIGN SPECIFICATIONS


NAME: MUGEN XA-1 USR


TYPE OF ENGINE: IN-LINE 4 OHC 12-VALVE


DISPLACEMENT: 1529cc


BORE x STROKE: 75 X 86.5


COMPRESSION RATIO: 12.3 : 1


HORSEPOWER: over 165ps / 7800rpm


TORQUE: 17.0kg-m / 6000rpm


CARBURETION: WEBER SIDE DRAFT 45-DCOE


IGNITION: C.D.I.


WEIGHT: 111kg (with T/M)


GEAR RATIO:

1ST 1.824

2ND 1.474

3RD 1.227

4TH 1.047

5TH 0.920


FINAL:

4.067

4.267

4.429

 



 

Update 12/4/2012: We found this super rare photo of the Mugen SCCA GT-4 CRX race engine in our archives! The Mugen engine code for this engine was XA1 USR. 1592cc with a 75mm bore and a 86.5 mm stroke at 12.3:1 compression with dry sump lubrication, this engine made over 165 PS @ 7800 rpm. At first Webber 45 DCOE carbs were used, then switched to Mikuni 44 PHH. The Mugen GT-4 CRX dominated SCCA GT-4 competition for many years......

 

Right-click the image to see a larger version of this work of art!