2011 Lexus RX 450h Technical Specifications
HYBRID POWER SYSTEM
Type Series/parallel system with gas engine and electric motors
Total System Power 295 hp
ENGINE
Type, Materials V6, aluminum block and heads
Designation 2GR-FXE
Valvetrain DOHC 24-valve with VVT-i
Displacement 3.5 liter
Bore x Stroke 3.70 in. x 3.27 in.
Compression Ratio 12.5:1
Horsepower (SAE) 245 hp @ 6,000 rpm (not including hybrid drive)
Torque 234 lb.-ft. @ 4,800 rpm (not including hybrid drive)
Maximum Engine Speed (redline) 6,000 rpm
Fuel System Port Fuel Injection (SFI)
Fuel Requirement Performance numbers achieved with 91-octane unleaded fuel
Emission Certification SULEV II (California); Tier 2 – Bin 3 (all other states)
Evaporative Emission Certification Zero evap.
ELECTRIC MOTORS
  Motor Generator 1 (MG1) Motor Generator 2 (MG2) Motor Generator Rear (MGR) (AWD Model Only)
Function Generator, engine starter, transmission ratio control Drives front wheels, regenerative braking Drives rear wheels, regenerative braking
Type Permanent magnet motor Permanent magnet motor Permanent magnet motor
Max. voltage AC 650V AC 650V AC 650V
Max. output -- 167 hp (123 kW) 68 hp (50 kW)
PERFORMANCE
0-60 mph Acceleration (mfg. results) FWD - 7.8 seconds AWD - 7.4 seconds
0-1/4 Mile Acceleration (mfg. results) FWD - 16.0 seconds AWD - 15.6 seconds
Top Track Speed 112 mph – electronically limited
EPA Estimated Fuel Economy* (City/Hwy/Combined) FWD – 32/28/30 AWD – 30/28/29
Coefficient of Drag (Cd) 0.33
HYBRID BATTERY PACK
Type Sealed Nickel Metal Hydride (Ni-MH)
Nominal Voltage 288V
Power Output 37 kW
DRIVETRAIN
Layout Front gas engine with hybrid transaxle and front and rear electric drive motors, electric all-wheel drive
Transaxle/Transmission Type Electronically Controlled Continuously Variable Transmission (ECVT); planetary gear unit for gear reduction and power splitting, electronic all- or front-wheel-drive control system
Designation P313
CHASSIS AND BODY
Body/Frame Unitized steel
Suspension, f/r MacPherson strut, coil springs / Double wishbone type, coil springs
Steering
Type Electric Power Steering (EPS): rack and pinion with electronic power assist
Overall Ratio 14.8:1
Turns (lock to lock) 2.79
Turning Circle (wall to wall) 40.0 feet
Brake System Electronically Controlled Brake (ECB2) system with regenerative control and incorporating Anti-lock Braking System (ABS), Electronic Brake force Distribution (EBD), Brake Assist (BA) and Vehicle Dynamics Integrated Management system (VDIM)
Brake Rotors, type/diameter Front: Ventilated disc/12.9 in.
Rear: Disc/12.2 in.
Anti-Lock Braking System 4 channel, 4 sensor
Wheel Size/Type 18-in. x 7.5-in. (standard)
19-in. x 7.5-in. (optional)
Tire Size/Type 235/60R18 (standard)
235/55VR19 (optional)
Spare Tire/Wheel Compact