In the realm of hot hatches, the Toyota GR Corolla stands out as a unique specimen. While its competitors typically opt for a conventional setup with a single driven axle, the GRC sets itself apart with not just its three-cylinder engine but also its unconventional all-wheel-drive system. Let’s delve into the quirks of this system that make the GR Corolla truly bizarre.
Breaking Down the AWD System
The GRC features a familiar layout with a transverse engine at the front, feeding power through a transaxle and a transfer case to a rear differential. This layout resembles that of the Volkswagen Golf R, but with a notable absence—a clutch pack in its transfer case, making it distinctively different.
Variable Torque Split
The GRC boasts a variable torque split AWD system that allows for configurations ranging from 60% front, 40% rear, to a balanced 50/50, and up to 30% front, 70% rear. Unlike traditional setups with a center differential, the GRC’s torque distribution is managed through a clever use of gearing and a clutch pack, offering unique driving dynamics.
How It Works
By slightly overdriving the rear axle at the transfer case and adjusting the slip of the clutch pack, the GRC can vary its torque split effectively. This means that even in the 30/70 split mode, the actual power distribution might not be as straightforward as it seems.
Conclusion
The Toyota GR Corolla’s unconventional AWD system showcases innovative engineering to overcome the challenges of a transverse FWD-based setup. While it may seem complex on paper, this unique system adds an element of intrigue and excitement to the driving experience of the GR Corolla.
FAQs
1. How does the Toyota GR Corolla differ from other hot hatches?
Unlike its rivals that feature standard four-cylinder engines and single driven axles, the GR Corolla stands out with a three-cylinder engine and an unconventional AWD system.
2. What is unique about the variable torque split in the GRC?
The GRC utilizes a variable torque split system that deviates from the conventional center differential setup, allowing for flexible torque distribution between the front and rear axles based on driving conditions.
With its distinctive AWD system and innovative approach to power distribution, the Toyota GR Corolla offers a driving experience unlike any other in its class.
