Tuning Done Right

Mazda Miata Roadster 1993

Information from the Mazda Miata Roadster 1993 brochure (Part No. 9999-92-0105-93).

Note: Still under construction - need the brochure in order to have images to scan!

Click here for additional Miata links.

CONCEPT

THE ROADSTER RETURNS

It has long been felt that the perfect driving experience was one that provided a direct connection between the road, the wind, the car, and the sky. Only one type of car could do it: the classic roadster. But in recent years, that kind of car disappeared. The driving enthusiasts at Mazda asked, "Why?" and set out to give the world a modern car that recreated the special feeling and pleasure of classic sports car driving. That car is the Mazda MX-5 Miata, a car that becomes a part of you, and responds not just to your command, but almost to your thought. In short, a car with heart and soul.

Picture yourself on the most perfect two-lane country road you know of, your closest friend in the passenger's seat and the music from the throaty Miata exhaust making you forget all about those CDs you brought along. And suddenly you come to that sharp curve you've always wondered about.

But then, quickly, it's gone. Shifting, braking, steering, and accelerating are all so quick, so direct and natural, that you're out of the turn, back on the straight, almost without realizing it. Clutch, shift, gas, clutch, brake, steer, gas, clutch, shift, clutch, gas. It seemed to be just a series of thoughts.

A car that feels this good when driven this enthusiastically isn't something that just happens. Like every car we make, the Miata was designed using Kansei Engineering, our deeply held philosophy that a car must go beyond merely performing right; it must also feel right. Using Kansei Engineering we learn things we could never learn from a computer. Things like how stable the car feels going around a curve; if the exhaust sounds just right when accelerating; even how a driver feels resting an elbow on the window sill. This devotion to designing vehicles based on needs and emotions of the people driving them, leads Mazda to solve problems in unique ways.

When our research showed us, for example that the Miata would feel right only if it had perfect 50/50 front/rear weight distribution, we did critical design work with the car suspended from its exact center on a single steel cable. This permitted ideas effecting weight distribution to be immediately seen and evaluated. Among other things, this resulted in giving the Miata a light, but strong, aluminum hood, and mounting the low-weight battery in the trunk.

When our engineers and designers were done, the classic roadster was back. But with modern technology and reliability, and a special feeling behind the wheel that could only have come from Mazda. Drop the top and let the wind blow through your hair. These are the good old days.

We have accurate reconstructions of 20 different road surfaces from all around the world at the Global Road Circuit on our Miyoshi Proving Ground in Japan. Our engineers use it to fine-tune our vehicles for any type of driving you might encounter.

Go beyond merely eyeing the place you're driving your Miata through. Drop the top, and experience it.

Past, present, and future of automobile design combine perfectly into an organic, sensuous form.

The optional hardtop turns your roadster into a gorgeous coupe. Its glass window with defroster makes the Miata a four-season delight.

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INTERIOR

DESIGNED FOR THE PURE PLEASURE OF SERIOUS DRIVING

You don't even have to be out on the road to appreciate the thought and understanding that went into creating the MX-5 Miata interior. Just sitting still, you'll realize that everything is designed to provide an astonishing feeling of command and control.

Slip behind the thick, padded steering wheel, and settle into the contoured, high-back bucket seats. Notice the gentle cradling that will keep you from sliding as you fully enjoy a sharp turn. Your feet discover that the pedals are arranged in the perfect position for heel-and-toe driving, and your hand falls naturally on the short-throw shifter. In front of you, arranged to be quickly read with one smooth sweep of your eyes, is a full complement of white on black analog gauges, ringed in the classic chrome. Every gauge and control is strategically positioned for instant visibility and ease of operation.

You'll find it's extremely easy to use the softtop, also. It can be easily raised or lowered in just a moment by one person, should the weather suddenly change. With the softtop up, you'll enjoy the warm, dry cabin.

Everything in a Mazda Miata serves the sole purpose of amplifying the classic sports car experience. Whether it's the way the car handles the road, or the way the driver handles the car, there's never any doubt about who's in control. In a Miata, you are always in command.

If your Miata will be cruising the boulevards as well as straightening out those back country roads, consider option Package C. Tan leather seating surfaces, a leather-wrapped steering wheel, tan softtop, alloy wheels, and other performance and convenience features make this a Miata that's even more personal.

The optional Mazda Sensory Sound System (MSSS) greatly adds to the enjoyment of all music sources. In addition to the regular door and headrest speakers, the MSSS adds tweeters in the forward door edge panels, and special bass transducers in the seats to improve low frequency sound response even with the top down.

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TECHNOLOGY

Science, And The Driving Experience

Everywhere you go, you're accompanied by a deep, throaty growl. That glorious sound comes from the high-revving, DOHC, 16-valve fuel-injected Miata engine. It provides quick throttle response thanks to a race-bred induction system, distributorless ignition, and lightweight flywheel. Helping the motor breathe deeply is a tuned exhaust system with stainless-steel "headers," just like the setup used on high-performance exotics. And, to make sure the Miata experience sounded just right, Mazda engineers tried over 100 different exhaust notes before finding the one that said "sports car." After a while, that exhaust note will tell you when to shift.

The shifter feels so good, you'll try to find excuses to run through the gears. Controlling a 5-speed, close-ratio overdrive transmission, the shifter's compact linkage has slick, precise throws of only 1.8 inches. Car and Driver said it "feels like a toggle switch." A four-speed automatic transmission with overdrive is also available.

A Miata is rock-solid, with little of the body flex that degraded handling and comfort in classic roadsters. Mazda engineers used Dynamic Modal Analysis software and a Cray supercomputer to analyze body stress at 8900 points, and created a chassis/body so rigid, the additional bracing used in most convertibles was not needed. To keep the three major drivetrain components as rigid as the chassis, Mazda examined the technology used in some of the world's most exotic sports cars and created an ingenious lightweight subframe called the Power Plant Frame (PPF). Refining the classic front-engine/rear-drive layout, the PPF locks engine, transmission and differential into one solid piece of machinery. You'll notice a near absence of vibration, shudder, or slack even if you're changing gears, braking, and turning all at the same time.

What there's no absence of is road feel. You'll know exactly what your wheels are doing, and they'll respond instantly to your command through the quick rack-and-pinion steering system. All four wheels are independently suspended on double wishbones, coil springs, and low-pressure gas-filled shocks. Adding the optional limited-slip differential can further improve handling on wet or slippery road surfaces.

Unfortunately, there are times when you have to slow down, or even bring you Miata to a complete stop. Handling that job are power-assisted 4-wheel disc brakes, with the front discs ventilated for increased fade resistance. The optional Anti-lock Brake System (ABS) provides reassuring stability and steering control under hard braking.

While any car is the sum of its parts, those in the Miata seem to add up a whole lot better. You may not remember why a Miata feels the way it does, but after even one drive you'll never forget the feeling.

Race-bred intake and exhaust systems let the DOHC, 16-valve Miata engine deliver instant throttle response across a wide rpm range.

The Power Plant Frame (PPF) locks the engine, transmission, and differential into a single rigid unit. The result is immediate throttle response, and a noticeable lack of drivetrain vibration, shudder, and slack.

The 5-speed's shifter uses a specially designed compact linkage to provide immediate control. It's quick, slick, and precise.

Legendary Miata handling is further improved for 1993. Thanks to revised suspension tuning, riding comfort is even better, with no reduction in sports car performance.

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SPECIFICATIONS

Engine

Availability		Manual transmission
			Automatic transmission

Type			In-line 4-cylinder

Displacement		1597cc (97 cubic in.)

Valve gear		DOHC 16-valve

Bore and stroke		3.07 x 3.29 inches

Compression ration	9.4:1 (manual)
			9.0:1 (automatic)

Horsepower, SAE net	116 @ 6500 rpm (manual)
			105 @ 6500 rpm (automatic)

Torque, SAE net lb.-ft.	100 @ 5500 rpm (manual)
			100 @ 4000 rpm (automatic)

Fuel system		Multi-port electronic fuel 
                        injection

Ignition system		Distributorless electronic

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Transmission

Type:	5-speed manual with overdrive
	4-speed automatic with overdrive and 
	lockup torque converter. (Optional)

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Dimensions (inches)

Wheelbase		89.2
Length			155.4
Width			65.9
Height			48.2
Track: front/rear	55.5/56.2
Headroom		37.1
Legroom			42.7
Shoulder room		50.4

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EPA Mileage Estimates (mpg)

Manual transmission		25 city, 30 highway
Automatic transmission		24 city, 28 highway

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Chassis

  • Frame
    • Unit body
  • Suspension
    • Fully independent, double-wishbone type with coil springs, gas-filled shock absorbers, and front and rear stabilizer bars
  • Steering
    • Rack-and-pinion type
    • Engine-rpm-sensing variable power assist (optional)
    • Steering ratio: 18.0:1; 15.0:1 (power assist)
    • Steering wheel turns, lock-to-lock: 3.3; 2.8 (power assist)
    • Turning circle diameter, curb-to-curb: 30.8 feet
  • Brakes
    • Power-assisted with dual hydraulic circuits
    • 9.3-inch ventilated front discs and 9.1-inch rear discs
    • Anti-lock Brake System (ABS) (optional)
  • Tires
    • P185/60R14 82H steel-belted radials
  • Fuel capacity
    • 11.9 gallons
  • Curb weight
    • 2222 pounds; 2280 (automatic transmission)

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Exterior Colors

Work in progress - need to scan in the color samples
  • Classic Red
  • Crystal White
  • Mariner Blue
  • Brilliant Black

Color Combinations

(Interior/Exterior)
  • Black/All exterior colors
  • Tan Leather**/Classic Red, Crystal White, Brilliant Black
**Available only with option Package C.

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FEATURES

Mechanical Standard Features

  • 16L DOHC 16-valve engine with multi-port electronic fuel injection
  • Sport-tuned exhaust system with stainless steel tubular header
  • 5-speed manual transmission with overdrive
  • Power Plant Frame (PPF)
  • Rear-wheel drive
  • Rack-and-pinion steering
  • Power-assisted 4-wheel disc brakes

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Exterior Standard Features

  • 14-inch styled steel wheels with bright center caps
  • Dual body-color mirrors
  • 2-speed windshield wipers with intermittent and 1-wipe features
  • Tinted glass

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Interior Standard Features

  • Black cloth upholstery
  • Lockable glove box and map pocket on back of passenger's seat
  • Full center console with lockable storage compartment
  • Remote fuel door and trunk releases
  • Double-fold sun visors with passenger's vanity mirror
  • Driver's side air bag Supplemental Restraint System (SRS)
  • AM/FM/cassette stereo with integral digital clock and anti-theft coding.

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Optional Features

  • Package A: Power-assisted steering, leather-wrapped steering wheel, power mirrors, aluminum alloy wheels, and headrest speakers.
  • Package B: Package A items, plus cruise control, power windows, and automatic power antenna
  • Package C: Package B items, plus Tan interior with leather seating surfaces* and Tan vinyl top (n/a with Mariner Blue)
  • Anti-lock Brake System (ABS) (requires Package B or C)
  • 4-speed automatic transmission with overdrive
  • Viscous-type limited-slip differential (requires manual transmission)
  • Removable hardtop with rear window defroster (requires Package A, B or C)
  • Air conditioning
  • Mazda Sensory Sound stereo system with compact disc player (requires package B or C)
*Seats upholstered in leather expect for vinyl on rear side and other minor areas.

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Warranty

The Mazda 36-month/50,000-Mile Limited Warranty. Mazda warrants that the Mazda vehicle will be free of defects with normal use and prescribed maintenance for 36 months or 50,000 miles, whichever comes first, or Mazda will repair any problem without charge. Ordinary maintenance items or adjustments, parts subject to normal wear and replacement, and certain other items are excluded. This transferable, "limited warranty" is free on all new 1993 Mazda vehicles sold and service in the United States. See your Mazda Dealer for details.

The Mazda Parts and Accessories Limited Warranty. Mazda warrants that each Genuine Mazda Part and Accessory, when used normally and properly maintained, will be free from defects for 12 months from the time of sale, or a Mazda Dealer will repair or replace it without charge. Labor charges are covered only if the Part or Accessory was installed by a Mazda Dealer. Under some circumstances, Mazda Accessories that are installed by a Mazda Dealer will be covered for more than 12 months under the vehicle warranty. Parts and Accessories that are improperly installed by a party other than Mazda or a Mazda Dealer, parts subject to normal wear and replacement, and certain other exclusions apply. This transferable "limited warranty" is free on all new Genuine Mazda Parts and Accessories sold by a Mazda Dealer in the United States. See your Mazda Dealer for details.

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Accessories

Now that you've got the vehicle you want, make it uniquely yours with Genuine Mazda Accessories. You can choose from a variety of top-quality items, each of which is designed to fit right and look great. See your Mazda Dealer today and discover how easy it is to personalize, protect, and enhance your new 1993 Mazda with Genuine Mazda Accessories.

Hardtop. It's been designed to increase the all-weather versatility and style of the Miata. Painted to match the body color, it includes all mounting hardware.

Rear Wing. Available in select body colors, its aggressive design adds to the sporty appeal of the Miata.

Compact Disk Player. The concert quality, full-featured sound system adds to the overall enjoyment of owning a Miata.

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Fri Jan 27 18:45:13 PST 1995
Anthony Prince <aprince@dalek.edaal.ingr.com>

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