Record-Breaking Time Attack: Inside Amir Bentatou's K-Swapped Acura NSX

Record-Breaking Time Attack: Inside Amir Bentatou's K-Swapped Acura NSX

By Michael Harrison

February 8, 2025 at 02:51 AM

A championship-winning Acura NSX owned by Amir Bentatou has set multiple time attack records across the United States through innovative engineering and persistent development. The most notable modification was swapping the original C30A engine with a K20Z1, despite initial skepticism from NSX purists.

Racing NSX with sponsor logos

Racing NSX with sponsor logos

The K20Z1 engine build features:

  • Built by Sport Car Motion
  • 86mm Arias pistons
  • Brian Crower connecting rods
  • 9.5:1 compression ratio
  • Drag Cartel 2.2 camshafts
  • Supertech springs and retainers

NSX sports car cockpit view

NSX sports car cockpit view

Performance enhancements include:

  • Garrett G30-770 turbocharger
  • Custom intake system
  • Koyorad water-to-air heat exchanger
  • Pracworks intake manifold
  • RS Motorsport exhaust system
  • E85 fuel system with Aeromotive A1000 pump
  • KPro engine management

Honda NSX engine bay close-up

Honda NSX engine bay close-up

The drivetrain and chassis feature:

  • Samsonas 6-speed dog box transmission
  • KAAZ 1.5-way Limited Slip Differential
  • KW Competition suspension
  • RS Motorsport 6-point roll cage
  • Rays ZE40 wheels (18x10.5 front, 18x12 rear)
  • Yokohama Advan A052 tires
  • Stoptech braking system

NSX engine bay showing air intake

NSX engine bay showing air intake

Aerodynamic modifications include:

  • Spoon Sports R-GT front bumper
  • RS Future front splitter
  • Yokota Bodycraft front fenders
  • Marga Hills side skirts and rear fenders
  • RS Future LM Wing
  • Midnight Purple 2 paint by ABS Autobody

NSX race car in garage

NSX race car in garage

The car produces 424 horsepower at 7,500 rpm and 392 lb-ft of torque. After completing its street-class competition career at Road Atlanta's Global Time Attack in May 2022, the car is being converted for unlimited class racing.

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