HKS HIPERMAX R Coilovers for A90 / A91 Toyota GR Supra (DB42)

HKS HIPERMAX R Coilovers for A90 / A91 Toyota GR Supra (DB42)

The HKS HIPERMAX R coilover system stands as a pinnacle of suspension technology, meticulously engineered for precision and performance. With an innovative design that aligns the damping axis and spring load lines coaxially, it significantly reduces friction, ensuring smoother damping and a more responsive ride. This system features exclusive high-strength springs made from 210k grade wire rods, optimized to reduce weight and enhance steering response. Additionally, it incorporates a newly developed oil that improves damper oil quality and viscosity, maintaining superior handling performance by effectively mitigating temperature fluctuations caused by heat.

SRF (super response fluid)

• This newly developed oil features enhanced damper oil quality and viscosity, significantly improving damping force characteristics and achieving superior handling performance. It effectively suppresses temperature variations caused by heat, ensuring a consistent and reliable driving experience.

LVS (low vibration spring)

• The exclusive high-strength spring is manufactured using 210k grade high-strength wire rods, designed to shorten wire length and reduce overall weight. This advanced material enhances steering response, providing a sharper and more agile driving experience.

Upper Spring Retainer

• Designed exclusively for HIPERMAX R, this feature aligns the damping axis and spring load lines coaxially, reducing friction for smoother damping. This alignment enhances the overall efficiency and effectiveness of the suspension system, providing a more refined ride.

Features

• Introduction of HIPREMAX R, designed for circuit driving with high-grip tires
• Features front camber adjustment mechanism adjustable up to approximately 4-degrees
• Convenient camber adjustment accessible from the tire house side despite the deep position of the upper part in the engine compartment
• Rear damping force adjustment achievable without removing shock absorbers
• Suitable for both track driving and street use

Specific Features

• Single tube
• 30 levels of adjustable dampening
• Inverted type
• Shock-body length adjustable
• Pillow upper mount
• Dual PVS
• PNE coating
• Super response fluid (SRF) (exclusive for HIPERMAX R)
• Low vibration spring (LVS) (exclusive for HIPERMAX R)
• Upper spring retainer (exclusive for HIPERMAX R)
• Spec change available
• Overhaul available
• 2-year / 40,000km warranty

Specifications

• Damping Force Adjustment:
  • Front: 30 steps
  • Rear: 30 steps
• Base Valve:
  • Front: N/A
  • Rear: N/A
• Upper Mount:
  • Front: Spherical bearing
  • Rear: Spherical bearing
• Inverted or Normal Type:
  • Front: Inverted
  • Rear: Normal
• Damper / Spring Layout:
  • Front: Coilover
  • Rear: Separated
• Spring Rate Change at Factory:
  • Front: Possible
  • Rear: Possible
• Damping Force Adjustment with Wire:
  • Front: N/A
  • Rear: N/A
• Helper Spring:
  • Front: 19.8N/mm
  • Rear: 19.8N/mm
• Spring Rate:
  • Front: 137N/mm (14kgf/mm)
  • Rear: 196N/mm (20kgf/mm)
• Spring Height:
  • Front: 150mm (straight)
  • Rear: 200mm (straight)
• Height at Factory:
  • Front: -24mm (-15mm upper limit / -45mm lower limit)
  • Rear: -29mm (0mm upper limit / -71mm lower limit)
• Upper Mount:
  • Front: Pillow ball
  • Rear: Pillow ball
• Recommended Range to Change Spring Rate:
  • Front: ±20N/mm (2kgf/mm)
  • Rear: ±20N/mm (2kgf/mm)
• Recommended Damping Dial Settings for Fuji Speedway:
  • Front: 10-clicks
  • Rear: 13-clicks
• Ride Height:
  • Front: -24mm (from stock)
  • Rear: -29mm (from stock)
• Adjustable Range from Low to High:
  • Front: 647mm ~ 677mm (the lowest value may not be road legal)
  • Rear: 634mm ~ 705mm (the lowest value may not be road legal)
• Drivable Range from Low to High:
  • Front: 647mm ~ 677mm (that there is no contact of car body or arms etc., however change of tire / wheel size may cause a problem, actual data depends on each vehicle)
  • Rear: 634mm ~ 705mm (that there is no contact of car body or arms etc., however change of tire / wheel size may cause a problem, actual data depends on each vehicle)
• Damping Force:
  • Front: 1854N rebound / 613N damping (the value of the damping force is at piston speed of 0.1m/sec)
  • Rear: 942N rebound / 540N damping (the value of the damping force is at piston speed of 0.1m/sec)
• Default Position of Dial:
  • Front: 15
  • Rear: 15
• Remaining Damper Stroke:
  • Front: 43mm rebound / 46mm damping
  • Rear: 57mm rebound / 57mm damping

What’s Included

• Front suspension assembly (2)
• Rear suspension assembly (2)
• Rear spring (2)
• Rear ride height adjuster assembly (2)
• M8 flange nut (8)
• Spacer (4)
• Insulator (2)
• Spring seat (2)
• Helper spring (2)
• Rubber seat (2)
• 12.7sq slotted spanner wrench
• Spanner wrench
• Warranty certificate
• Installation manual

Applications

• Toyota GR Supra: A90, A91 (2020+) – 2.0L Turbo I4 B48, 3.0L Turbo I6 B58

Notes

• Only compatible with DB42 models 
• When installing on Supra RZ and SZ-R, a separate AVS error canceller is required
• To avoid understeer, adjust the rear towards toe-out direction for improved agility
• Even within the adjustable range, car body, arm etc. may contact. In such case, it will be hard to drive. Damper oil leakage or any other problems caused by low ride height setting from the factory setting will void the warranty of the product.

About HKS

HKS Co., Ltd. is a highly renowned Japanese automotive tuning and performance company. Founded in 1973 by Hiroyuki Hasegawa and Goichi Kitagawa, the company’s initials HKS are also derived from the name of its third partner, Sigma Automotive. With a reputation built on high-quality performance parts, HKS specializes in aftermarket components for a wide array of vehicles. The company has played a significant role in popularizing automotive tuning culture around the world. HKS is known for producing various performance-enhancing parts including turbochargers, exhaust systems, suspension components, and engine parts. Their products are engineered to provide maximum performance gains without sacrificing reliability or drivability.

Over the decades, HKS has expanded its reach by participating in various motorsport events, ranging from drag racing to drift competitions and circuit racing. Their expertise in tuning and enhancing vehicles has led them to significant successes in different motorsport arenas. The commitment to research, development, and innovation has cemented HKS’s place as a leader in the automotive aftermarket industry. By maintaining rigorous quality control and focusing on the precise engineering of performance products, HKS has established strong relationships with automobile manufacturers, dealers, and enthusiasts worldwide. Sustainability and environmental considerations are also part of HKS’s commitment. They continue to innovate in ways that enhance performance while considering environmental impact. With a rich history and an unrelenting passion for pushing automotive performance to its limits, HKS continues to be a sought-after brand for automotive enthusiasts seeking top-tier performance upgrades and tuning solutions.