Back to the Future | Amir Bentatou’s Time Attack Record-Setting Acura NSX

SPEC SHEET

VEHICLE
Year / Make / Model:

1991, Honda, NSX

Chassis Code:

NA1

Competition Class:

Street Class

Vehicle Weight:

2350

Weight Bias (F/R):

43/57

Shift RPM:

8k

Redline RPM:

9k

Peak Boost:

1.8 bar

Fuel:

E85

 

 

ENGINE
Engine Code:

K20Z1

Displacement (cc):

1998

Bore & Stroke (mm):

86×86

Peak Horsepower (@ RPM):

424 @7500 rpm

Peak Torque (@ RPM):

392 @4500 rpm

Dyno Type:

Mustang

Engine Builder:

Sport Car Motion

Block Modifications:

Stock

Compression Ratio:

9.5:1

 Pistons:

Arias

 Piston Rings:

JE Pistons

 Connecting Rods:

Brian Crower

 Crank:

K20Z1

Bearings, Main and Rod:

ACL

 Camshafts:

Drag Cartel 2.2

 Valves / Springs / Retainers:

Supertech

 Cylinder Head Gasket:

JE

 Head / Main Studs:

ARP

 Intake Manifold:

Pracworks

 Throttle Body:

70mm

Exhaust Manifold:

RS Motorsport

 Exhaust System / Downpipe:

RS Motorsport

Wastegate:

Turbosmart

Intercooler:

Koyorad

 Fuel Injectors:

id1700x

Fuel Pump(s):

A1000

Engine Management System:

Kpro

Engine Management Tuner:

Kristian Wong

Cooling System:

Koyorad

 

 

TURBOCHARGER
Turbocharger:

Garrett G30-770

Compressor Wheel Specs:

58mm inducer, 71mm exducer, 65 trim

Turbine Wheel Specs:

60mm inducer, 55mm exducer, 84 trim

Turbine Housing:

.83 V Band

 

CHASSIS/DRIVELINE
Springs, F&R (Make & Rate):

KW 18k/11k

Shocks, F&R (Make & Rate):

KW Competition

Sway Bars:

Front 1”, rear none

Chassis Bracing:

RS Motorsport Cage

Transmission:

Samsonas 6 Speed Dog Box

Transmission Gearing:

2.636, 2.000, 1.625, 1.353, 1.158, 1.000

Final Drive:

4.067

Clutch:

McLeod Twin

Flywheel:

McLeod

Differential(s) (Make & Type):

Kaaz 1.5 way Clutch type

Axles / Driveshaft:

Insane Shafts

Wheels (Make, Size & Offset):

Rays ZE40 18×10.5 +15 18×12 +20

Tires (Make & Size):

Yokohama Advan A052 265/30/18 295/35/18

Brake Calipers (F&R):

Stoptech Trophy STR40 F&R

Brake Rotors (Diameter, F&R):

Stoptech 2 piece floating rotors 328×28 F&R

Brake Pads (Front & Rear):

Winmax W5 F&R

Brake Lines:

Nitto NT01 235 50 R15 / NT 555R 275 50 R15

 

 

INTERIOR
Roll Bar / Cage:

RS Motorsport 6 point roll cage

Seats:

Bride Proface

Harnesses:

Cusco

Steering Wheel / Quick Release:

Vertex King Wheel

Gauges:

AiM data logger

 

EXTERIOR
Front Bumper:

Spoon Sports R-GT

Front Lip / Spoiler:

RS Future front splitter & end plates

Front Fenders:

Yokota Bodycraft

Hood:

NSX-R

Side Skirts:

Marga Hills

Rear Fenders:

Marga Hills

Rear Bumper:

Spoon Sports R-GT

Rear Spoiler / Wing:

RS Future LM Wing

Taillights:

Arclight

Mirrors:

Magical Racing Mirrors

Paint:

Porsche orange paint