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Offered by Midwest Spec Racer, Inc.

“You have brought me a car that was the most fun to drive of any car that I have ever driven!”

Mark Utecht, BIR Performance Driving School

Great balance and a consistent feel!  The car offers so much grip and stopping power compared to its horsepower class that it is difficult for a driver to get in over his head!

Kit prices begin at $39,500.  For more information, please contact Steve Fenske

Midwest Spec Racer, Inc.

(785) 230-0857

msr.steve@sbcglobal.net

With 23 years of Spec Racer experience, Steve Fenske had some goals in mind when he designed this car:

  • easy to change engines or transaxles (one skilled tech can swap either unit in 2 to 3 hours)
  • modular design of the radiator section to enable quick repair of front crash damage (the entire front comes off with 2 bolts)
  • modular design of the bodywork (19 pieces total allow you to replace only the damaged portion of the body instead of repairing large sections)
  • simple suspension upper and lower wishbone designs patterned after dirt modified cars keep replacement costs down
  • spindle and upright design use a modular approach with all 4 corners using most of the same fabrication parts and a Chrysler wheel bearing
  • brakes are off the shelf Wilwood components to keep cost down and supply consistent

 

Some of the features added to the car to make it stand out from others currently in the market:

  • large 22 gallon fuel cell so the car can run for 3 hours (can be filled without removing bodywork)
  • an option for two seats to be able to take friends/students for a ride or an option for a single, center seat.  Seat options can be changed in two hours.
  • uses a currently available production drive train that can be easily obtained at salvage yards or purchased new.
  • the engine bay is large enough to accommodate a wide variety of drive trains including V-6 or automatics
  • a body design that has a retro early Can-Am look to it
  • dry sump oiling system to increase reliability and long runs between oil checks

Here the driver is on the right side of the car in a two seater set up.

 

The frame pieces are accurately and efficiently manufactured using computer assisted machines.  To do that, we have generated a complete of engineering drawings.  Here is a link to the engineering drawings set up in an animated fly-by loop

This top view allows you to see the many separate panels that make up the body.

 

The frame comes powder coated. The side crush boxes are bolted to the main frame, makes repairs a bolt on affair, no welding.

 

We are using Wilwood brake components that are widely available. A 4 piston aluminum caliper with a 12.19" ventilated rotor attached to a custom aluminum hat. The brake pads on the first car have lasted more than 45 hours, and the rotors are just now showing measureable wear. Brake effectiveness and low wear, what a combination!

 

All 4 corners use a double adjustable coil over shock. No special tools needed for adjustments, just turn the knobs.

 

 

The spindle and bearing upright assembly is a fabricated item using a Chrysler FWD wheel bearing cartridge attached to various aluminum and steel components which are mostly in common for all 4 corners. You don't have to have a press at the track to change a wheel bearing. Use a wrench instead.

 

This is the front of the car showing the front radiator/crush box, and bumper, umm I mean fender mount. The radiator is a common Jeep part, local auto parts stores keep them on the shelf. If you have damage to the front, you have two bolts and two hose clamps to undo, then you can put on the new front radiator/crush box.

 

The fuel cell has a filler plate on both sides. The fuel pump is located behind this plate for easy access.  You only have to remove the little round plate to gain access to the fuel pump. A second fuel pump is an option, as is filler ports on both sides.

 

Upper control arms are adjustable aluminum tubes that allow for caster and camber changes by simple tube rotation. We have developed a chart that makes it easy to change both at the same time by looking at the cross reference table. Notice the driver adjustable blade style anti-sway bar.

 

Lower control arms are one piece fabricated steel with the steering adjustment on the same plane as the control arm so toe changes are not needed during camber or caster changes. You can see the adjuster blade of the anti-sway bar in this picture too.

 

This is the intercooler for the turbo option. An exhaust header occupies this area of the normally aspirated version.

 

The ball bearing, water cooled, turbocharger is nested just below the intercooler. We have a very short airflow path for the turbo system. Converting from a turbocharged version to the naturally aspirated version can be done in an hour.

 

The adjustable links for the upper control arm and the toe adjuster link for the lower control arm are shown here.

 

The driver's controls clamp on to the frame. Move the parts around and you have a center seat car for one or right hand driver position for the two seat version of the same car.

 

Multiple height locations for the shoulder belts, When you change seats and or drivers, you can have the belts at different hieghts. It is possible to have two different sets of shoulder belts at different heights at the same time. How is that for a endurance driver change feature!

 

This is the sliding pedal box assembly.  Throttle, brakes, clutch and dead rest pedal all move to accomodate drivers of different sizes. You loosen four bolts, slide the pedal assembly and then tighten four bolts. One tool, 60 seconds, the  job is done.

 

The shifter and seat mount are a key part that bolts in when you want to go from two seater to singler seater. The shifter  has two positions, one position is a little farther forward than the other to better fit drivers of different sizes.

 

Up front, protected and easy access, to the fire system, battery and oil tank.

 

The steering rack, shame this work of art is hidden behind the radiator.

Standard features of the car include: (subject to change)

*  1.8L 16 valve, 140 hp, Toyota 1ZZFE all aluminum engine with VVT.

*  300 hp intercooled turbo option available.

*  Dry sump oiling system with 9 qt. capacity. Water/oil heat exchanger style oil cooler.

*  Engine management system by AEM with built in loop recorder for easy diagnostics.

*  Close ratio 5 speed Toyota transaxle with limited slip diff.

*  STACK dash system with timing & data logging upgrade options.

*  Huge Wilwood racing brakes on purpose built spindle assemblies.

*  Wilwood pedal assembly on slider bracket for easy driver size adjustments.

*  Cockpit adjustaqble brake bias.

*  4-wheel double wishbone independent suspension.

*  Outboard mounted double adjustable coilover shocks.

*  Cockpit adjustable rotary blade style sway bars front and rear.

*  Team Dynamics Racing Wheels, 16x7 front and 17x9 rear.

*  Hoosier DOT Racing R6 Radial tires, P205/45ZR-16 front and P275/40ZR-17 rear.

*  Powder coated frame with a choice of colors. All loose steel parts are already plated.

*  Splitter in front & wing in back.

*  Large capacity 22 gallon fuel cell for endurance racing.

*  Modular designed body for better fit and easy affordable crash replacement.

*  Provision for optional headlights in front fenders for endurance racing.


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