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The RX-7 explodes out of corners... On the race track, it had ferocious cornering power, but seemed to get the biggest edge with enormous jump off the corner... The new RX-7 blitzed the Bang portion of Bang for the Buck... The RX-7 didn't just win the numbers game, it humiliated the field... It was also rated first in Fun Factor, with an almost perfect 99.57 score. Motor Trend, Apr. and Sep. 1992

The RX-7 may be a performance highwater mark for years to come... The RX-7's performance is awe-inspiring. It's with 1 foot of being the shortest stopping street car we've ever tested; ... and grips the road harder than the best race cars of only a few years ago... This is the best hardcore sports car in its price range, maybe in any price range... The RX-7 redefines road manners for its class, the handling feels nimble and natural... No sports car in its price range delivers the same level of sensory gratification for the enthusiast driver. Motor Trend, proclaiming the RX-7 the Import Car of the Year, Feb. 1993.

 1993 Mazda RX-7 Specifications (North American Version)
 

General

Base R1 Touring
Wheelbase in.(mm) 95.5 (2425) 95.5 (2425) 95.5 (2425)
Track, Front, in.(mm) 57.5 (1460) 57.5 (1460) 57.5 (1460)
Track, Rear, in.(mm) 57.5 (1460) 57.5 (1460) 57.5 (1460)
Overall Length, in.(mm) 168.5 (4280) 168.5 (4280) 168.5 (4280)
Width, in.(mm)  68.9 (1750) 68.9 (1750) 68.9 (1750)
Height, in.(mm) 48.8 (1230) 48.8 (1230) 48.8 (1230)
Minimum ground clearance, Laden, in.(mm) 4.5 (115) 4.5 (115) 4.5 (115)
Turning circle, curb to curb, ft (m) 35.4 (10.8) 35.4 (10.8) 35.4 (10.8)
Curb Weight, Two Seater, lb (kg) MT 2789 (1265) 2800 (1270) 2862 (1298)
                                                    AT 2857 (1296)           N/A 2923 (1326)
Weight Distribution, f/r % 50/50 50/50 50/50
Fuel tank capacity, US.gal. (litres) 20 (76) 20 (76) 20 (76)


 

Performance
Maximum Speed, mph (km/h) 158 (252)
Acceleration, 0-60 mph, sec. 4.9
Standing 1/4 mile 13.5
Fuel Consumption, miles/gallon (EPA) MT AT
City 17 18
Highway 25 24
Combined 23.5 23.4


 

Engine
Type Mazda Wankel Rotary, Longitudinal, Front "Midships" (13B-REW)
Number or rotors 2 in line
Generating radius, R, in. (mm) 4.1 (105)
Eccentricity, e, in. (mm) 0.59 (15)
K factor (R/e) 7.0
Width of trochoid chamber, b, in. (cc) 3.1 (80)
Single chamber capacity, cu in. (cc) 40.0 (654.0)
Total cubic capacity, cu in. (cc) 80.0 (1308.0)
Compression ratio 9.0:1
Maximum power, SAE net, bhp 255
@rpm 6500
Maximum torque, SAE net, lb-ft 217
@rpm 5000
Intake port position 2 per chamber, in side housings
Intake port timing
primary port opens, deg ATDC 45
closes, deg ABDC 50
secondary port opens, deg ATDC 32
closes, deg ABDC 50
Exhaust port position 1 per chamber, in trochoid housing (periphrey port)
opens, deg BBDC 75
closes, deg STDC 48
induction system 4-port, dynamic effect induction
Fuel system Digitally controled EGI-HS fuel injection with twin injectors per chamber.
Bosch L-Jetronic based Speed density system.
Turbocharging Sequential twin-turbochargers, with electronic boost control
  (Twin Hitachi HT12 turbos w/51mm turbine & 57mm compressor)
Turbine diameter, in. (mm) 2.0 (51)
A/R, low-speed passage 0.6 (Pry)
A/R, low- and high-speed passages 0.6 (Sec)
Compressor daimeter, in. (mm) 2.2 (57)
Maximum boost, in. (mm) Hg 22.4 (570)
Intercooler air to air, in the nose of the car
Ignition system Electronically controled with triple coils, two spark plugs per rotor chamber, pieeezoelectric knock-sensor
Lubrication system Force-feed. Direct oil injection to trochoid chambers for lubrication and sealing. Oilcooler (twin for "R" model).
Lubricant capacity, US gal. (litres) single 1.3 (4.9) twin 1.4 (5.4)
Cooling system Rotor housings water cooled; twin electric fans (with an auxiliary electric suction fan with airconditioning instalation); aluminium radiator. Rotors oil-cooled.
Coolant capacity, US gal. (litres) 2.3 (8.8)

 

Drive Train
Manual Transmition
Transmission type Type R152, 5-speed manual
Clutch type Single dry plate, diaphragm spring, hydraulically operated with pull-type mechanism
Clutch diameter, outer x inner, in. (mm) 9.3 x 6.3 (236 x 160)
Gearbox type All synchromesh, with double-cone synchronizers on 2nd and 3rd gears (R type) 
Gear ratios
1st 3.483:1
2nd 2.015:1
3rd 1.391:1
4th 1.000:1
5th 0.719:1
rev 3.288:1
Final drive type Hypoid
Ratio 4.100:1
Limited-slip differemtial Torsen-type standard

 

Automatic Transmission
Transmission  R4A-EL electronically-controled,4-speed automatic
Type Torque converter and planetary-gear automatic
Torque converter Type-GDD with lockup clutch operatinr in 3rd and 4th
stall rpm 3,000
stall ratio 2.1:1
Gear ratios
1st 3.027:1
2nd 1.619:1
3rd 1.000:1
4th 0.694:1
rev 2.272:1
Final drive ratio 3.909:1
Propeller shaft Tube in tube construction
Final drive shafts Equal length haif shafts with constant-velocity joints
Power plant frame Power train and final drive unit are unitized by Power Plant Frame (PPF)

 

Chassis and Body
Layout Front engine Rear wheel drive
Suspension, front Independent, double-wishbones by unequal length upper and lower arms, coil springs, telescopic dampers, anti-roll bar
Suspention, rear Independent, double-wishbones by upper A-arms, lower transverse I-arms, transverse toe-control links, trailing links, coil springs, telescopic dampers. anti-roll bar
Steering type Rack and pinion, engine rpm-sensing, variable hydraulic assistance
Ratio 16.6:1
Turns lock to lock 2.9
Brakes
Front Ventilated discs with 4-piston, floating calipers
Disc diameter/thickness,in.(mm) 11.6 (294)/.5 (11.6)
Pad area, sg in.(cm2) 14 (90)
Rear Ventilated discs with single-piston
Disc diameter/thickness,in.(mm) 11.6 (294)/.5 (11.6)
Pad area, sg in.(cm2) 10 (64)
Vacuum servo 8" + 8" Mastervac vacuum servo
ABS 4-sensor, 3-channel anti-lock brake system standard
Wheels Squeeze-cast aluminium wheels, 16 x 8JJ
Tires 225/50VR16 (Base)  225/50ZR16 (R1)  225/50VR16 (Touring)
Body "Space-Monocoque" steel, welded body with aluminium hood

US Model variations as apposed to Japanese domestic release.
(Taken from : 3rd Generation RX-7 FAQ, Version 1.0, 7 Aug 1996)
http://www.k-rad.com/3genfaq

Left hand drive.
Air conditioning is standard.
Alarm is standard.

Mechanical Standard Features
     - 2-rotor inline rotary engine with sequential twin turbochargers,
       air-to-air intercooler, and electronic fuel injection
    - Engine oil cooler
    - 5-speed manual transmission with overdrive
    - Power Plant Frame (PPF)
    - Torsen torque-sensing limited-slip differential
    - Fully independent double-wishbone suspension with rear shock-tower support brace
    - Rack-and-pinion steering with engine-rpm-sensing variable power assist
    - Power-assisted 4-wheel ventilated disc brakes with aluminum 4-piston front
      calipers and ducted backing plates
    - Anti-lock Brake System (ABS)

    Exterior Standard Features
    - 16-inch aluminum alloy wheels
    - Dual aerodynamic body-color power mirrors
    - Tinted glass
    - Retractable halogen headlights
    - Lightweight aluminum hood
 
    Interior Standard Features
    - Highback bucket seats with seatback recliners
    - Sport cloth upholstery
    - Dual storage compartments behind seats
    - Power windows and door locks
    - Remote liftgate and fuel door releases
    - 9000-rpm tachometer with 8000-rpm* redline
    - 180-mph speedometer
    - Gauges for oil pressure and engine coolant temperature
    - Leather-wrapped steering wheel, handbrake grip, and transmission shift
      knob
    - Cruise-control with steering-wheel-mounted controls (n/a R-1)
    - Driver's side air bag Supplemental Restraint System (SRS)
    - Drilled aluminum clutch and brake pedals (manual trans. only)
    - Anti-theft alarm system
    - Heater/defroster with 4-speed blower and side-window demisters
    - Air Conditioning
    - AM/FM/cassette stereo sound with five speakers and automatic power antenna

    * 7000 rpm redline with automatic transmission

Base models

    Comes with all equipment above, and can be ordered with a 4-speed
    electronically controlled automatic transmission with overdrive.  Can
    also be ordered with leather seating surfaces.

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