2005 Honda NSX Type-R
Engine
Engine Code: C32B
Type: 3179cc V6, aluminum block and heads, VTEC variable valve timing and lift, turbocharged and intercooled
Internal Modifications: Stock
External Modifications: HKS 3037 turbocharger, intercooler, exhaust manifolds, uppipe, and downpipe, Spoon Sports oil pan, exhaust,and high pressure radiator cap, custom oil cooler kit, air intake, and intercooler ducting
Engine Management Modifications: Bosch fuel pump, adjustable fuel pressure regulator
Drivetrain
Layout: Transverse mid-engine, rear-wheel drive
Drivetrain Modifications: Spoon Sports metal clutch and pressure plate
Suspension
Front: Spoon Sports coilovers
Rear: Spoon Sports coilovers
Brakes
Front: Spoon Sports monoblock brake calipers, slotted rotors, and stainless braided brake lines
Rear: Spoon Sports slotted rotors and stainless braided brake lines
External
Wheels: 17x7.5 (F), 17x8.5 (R), Prodrive PFF7
Tires: 215/40/17 (F), 255/40/17 (R), Bridgestone Potenza RE070
Body: NSX Type-R GT front bumper, rear bumper, side scoops, and roof scoop, custom front undertray
Interior: Recaro carbon kevlar bucket seats
The Nitpickers Guide To Building A NSX-R GT
The NSX-R GT was, in the end, just a dirty little trick that Honda used to pull a fast one on the GT Association, so that the real GT500 racecars could have larger dimensions to employ better aerodynamics. Aside from the pre-preg carbon fiber front and rear bumpers, side scoops, and drag inducing non-functional rear hatch scoop, the GT is no different from a standard 2002+ NSX-R.
So the first step to building your own Type-R GT is turning the base NSX into an NSX-R. But getting actual details and information on the already rare NSX-R isn't easy. Few in the US have ever seen one in person and most build their cars based off Internet myths and gossip. But, because the NSX-R and even the GT are so similar to the base NSX, making your own R or GT isn't impossible.
You'll first have to come to terms with the fact that there are certain things that can't be changed, like structural elements of the chassis. 1997 and up models have a strengthened and lightened chassis, which uses additional welding and different stamped gusseting as well as slightly different headlight bucket sheet metal to accommodate the later model NA2 bubble lights. NSX-Rs also get two aluminum chassis braces for the front subframe and frame rails.
In terms of weight reduction, there is absolutely no insulation material in the Type-R. The sound deadener normally applied underneath the cabin carpet, inside the fender panels, and sprayed under the chassis are omitted as well as power mirrors and door locks, trunk latch, hydraulic clutch damper (for 6-speed models), and illumination control. Honda even went so far as to take out the trunk lamp, rear defogger, vanity mirror, and the shift gate emblem. Air conditioning, stereo, HID headlights, and SRS systems are optional.
What you can't tear out, you'll have to buy. This includes lighter red floor and trunk carpet, powered carbon-Kevlar Recaro seats (made only for the NSX-R), Momo steering wheel, a lighter shifter boot, titanium shift knob, single layer partition glass for the rear bulkhead, and all the interior panels get wrapped in a lighter unpadded rubber. Weight reduction outside the cabin continues with a smaller battery, thinner fenders, aluminum rear bumper and door beams, thinner glass rear hatch, a mesh engine cover, and pre-preg carbon-fiber hood and rear wing. The spare tire hardware and engine bay fan are also removed.
The NSX-R does gain some weight on account of some added aerodynamic aids like the front undertray, rear diffuser, and radiator exhaust ducting.