sábado, 15 de diciembre de 2007

Rotary power !!


Como muchos saben soy un gran fanatico de los motores Wankel ... y en especial de los Rs asi que aqui les traigo una pequeña reseña de la historia de este hermozo auto

El Rx-7 (también llamado Sabana o Efini Rx-7) es el deportivo desarrollado por Mazda a partir de 1978. El modelo original compitió con otros modelos similares de la época, como el Datsun/Nissan 280Z, y tuvo un buen recibimiento por la prensa del motor.

Equipado con un doble motor rotativo Wankel, situado en la parte central delantera del vehículo y tracción trasera, hacían del mismo un modelo bastante equilibrado y deportivo.

El RX-7 fué el sustituto natural del RX-3, pero de forma indirecta también sustituyó a otro modelo con motor rotativo, el Cosmo, que había sido retirado del mercado el año anterior.


















Mazda RX-7 :
General specifications
Country of origin Japan Years of production 1976 - 1986
Numbers built 474565
Body design N/A
Weight 1024 kilo / 2257.5 lbs
Drivetrain
Engine Type 12A R 2
Engine Location Front , longitudinally mounted
Displacement 1.148 liter / 70.1 cu in
Valvetrain N/A
Fuel feed Carburetor
Aspiration Naturally Aspirated
Gearbox 5 speed Manual
Drive Rear wheel drive
Performance figures Power 105 bhp / 78 KW @ 6000 rpm
Torque 144 Nm / 106 ft lbs @ 4000 rpm
BHP/Liter 91 bhp / liter
Power to weight ratio 0.1 bhp / kg
Top Speed 192 km/h / 119 mph
0-60 mph Acceleration 9.0 s














Mazda RX-7 GXL :
General specifications
Country of origin Japan
Years of production 1986 - 1991
Numbers built N/A
Body design N/A
Weight 1223 kilo / 2696.3 lbs
Drivetrain Engine Type 13B R 2
Engine Location Front , longitudinally mounted
Displacement 1.308 liter / 79.8 cu in
Valvetrain N/A
Fuel feed Bosch L-Jetronic Fuel injection
Aspiration Naturally Aspirated
Gearbox 5 speed Manual
Drive Rear wheel drive
Performance figures
Power 148 bhp / 110 KW @ 6500 rpm
Torque 183 Nm / 135 ft lbs @ 3000 rpm
BHP/Liter 113 bhp / liter
Power to weight ratio 0.12 bhp / kg
Top Speed 206 km/h / 128 mph
0-60 mph Acceleration 7.0 s
















Mazda RX-7 Type RZ :
General specifications
Country of origin Japan
Produced in 2000
Numbers built 175
Body design N/A
Weight 1271 kilo / 2802.1 lbs
Drivetrain Engine 13B R-EW R 2
Engine Location Front , longitudinally mounted
Displacement 1.308 liter / 79.8 cu in
Valvetrain N/A
Fuel feed Fuel injection
Aspiration Twin Turbos
Gearbox 5 speed Manual
Drive Rear wheel drive
Performance figures
Power 280 bhp / 209 KW @ 6500 rpm
Torque 314 Nm / 232 ft lbs @ 5000 rpm
BHP/Liter 214 bhp / liter
Power to weight ratio 0.22 bhp / kg
Top Speed N/A
0-60 mph Acceleration N/A
















General specifications
Country of origin Japan Produced in 2002
Numbers built 1500
Body design N/A
Weight 1260 kilo / 2777.8 lbs
Drivetrain Engine 13B R-EW R 2
Engine Location Front , longitudinally mounted
Displacement 1.308 liter / 79.8 cu in
Valvetrain N/A
Fuel feed Fuel injection
Aspiration Twin Turbos
Gearbox 5 speed Manual
Drive Rear wheel drive
Performance figures
Power 280 bhp / 209 KW @ 6500 rpm
Torque 314 Nm / 232 ft lbs @ 5000 rpm
BHP/Liter 214 bhp / liter
Power to weight ratio 0.22 bhp / kg
Top Speed N/A
0-60 mph Acceleration N/A

















Mazda RX-7 Type R Bathurst R :
General specifications
Country of origin Japan Produced in 2002
Numbers built 500
Body design N/A
Weight 1260 kilo / 2777.8 lbs
Drivetrain Engine 13B R-EW R 2
Engine Location Front , longitudinally mounted
Displacement 1.308 liter / 79.8 cu in
Valvetrain N/A
Fuel feed Fuel injection
Aspiration Twin Turbos
Gearbox 5 speed Manual
Drive Rear wheel drive
Performance figures
Power 280 bhp / 209 KW @ 6500 rpm
Torque 314 Nm / 232 ft lbs @ 5000 rpm
BHP/Liter 214 bhp / liter
Power to weight ratio 0.22 bhp / kg
Top Speed N/A
0-60 mph Acceleration N/A









































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