Engine Displacement: 1,197 cc (NA) / 998 cc (Turbo)
The Fronx offers two petrol engines in the Indian market. The 1.2L K-Series Dual Jet is a 4-cylinder naturally aspirated engine focused on city refinement and efficiency. The 1.0L K-Series Boosterjet is a 3-cylinder turbocharged unit designed for enthusiasts, featuring direct injection for better mid-range punch. Both engines are compliant with BS6 Phase 2 (E20) norms and feature Maruti's Smart Hybrid (SHVS) technology for idle start-stop and torque assist.
Max Power: 88.5 bhp (1.2L) / 98.6 bhp (1.0L Turbo)
The 1.2L NA engine produces 88.5bhp at 6,000rpm, while the 1.0L Turbo variant pushes 98.6bhp at 5,500rpm. The Turbo's power delivery is notably more aggressive once the boost kicks in at 2,000rpm.
Max Torque: 113 Nm (1.2L) / 147.6 Nm (1.0L Turbo)
Torque is where the Turbo shines, offering 147.6Nm across a wide band (2,000-4,500rpm), making it superior for highway overtaking compared to the 113Nm of the naturally aspirated unit.
No. of Cylinders: 4 (1.2L) / 3 (1.0L Turbo)
The 1.2L engine uses a 4-cylinder layout for maximum smoothness and low NVH (Noise, Vibration, Harshness) levels. The 1.0L Turbo uses a 3-cylinder layout, which has a characteristic "thrum" but is lighter and more thermally efficient.
Valve Train: DOHC (Double Over Head Camshaft)
Both engines utilize a DOHC setup with 4 valves per cylinder (16 valves total for 1.2L, 12 valves for 1.0L). This allows for precise variable valve timing (VVT) to optimize airflow at both low and high speeds.
Fuel System: MPFI (1.2L) / GDI (1.0L Turbo)
The 1.2L uses Multi-Point Fuel Injection (MPFI), whereas the 1.0L Boosterjet utilizes Gasoline Direct Injection (GDI). GDI sprays fuel directly into the combustion chamber at high pressure, allowing for a higher compression ratio and better fuel atomization.
0-100 km/h Time: ~11.4 seconds (Turbo)
The 1.0L Turbo MT variant is the quickest in the lineup, completing the 0-100km/h sprint in approximately 11.4seconds. The 1.2L NA variant is more leisure-oriented, taking roughly 13.5seconds.
Top Speed: 180 km/h
Aerodynamically optimized for a crossover, the Fronx can reach a top speed of approximately 180km/h, though it is electronically limited for safety and stability on Indian roads.
