Lot No. 691 is a 1991 Acura NSX coupe that has undergone a professional, nuts-and-bolts restoration that took 20 years and used more than $111,000 in parts alone.
To start, the car was taken down to the bare all-aluminum chassis and given several aerodynamic upgrades, including front and rear diffusers and hood and side skirts. The color was also changed to Ferrari’s Modena Yellow.
Inside, the car was fitted with Sparco seats, an Alpine DVD system and a full sound system. The instrument cluster was custom-made with Blitz BLM gauges on carbon fiber. The glass hatch was replaced with Lexan polycarbonate and custom holes were cut to get air to the intercooler.
The original engine was upgraded with Darton MID Sleeves, which took it from a 3.0-liter to a 3.2-later. The engine also has JE pistons, Ferrea valves and Comptech cam gears, among other improvements.
The heads are ported and polished with a direct port wet-injection 75 horsepower NOS system to the turbo spool, which is controlled by an electromotive TEC3 and custom wiring harness. The custom-designed turbo system had a Spearco intercooler, Stage 3 turbo T3/T4 by Performance Technique with custom exhaust.
The original 5-speed manual transmission was upgraded with Type-R short gears and ring and pinion. The transmission casing was also replaced for snap ring manufacturing issues.
All of that power calls for good suspension. The NSX has Koni coilovers and other upgrades. It also has Tarox Big Brake Kit 10-piston calipers in front and 6-piston calipers in the rear.
The car will be sold with its 231-page build book that includes the spec sheets for each part used in the build as well as all receipts.
Barrett-Jackson’s annual Las Vegas auction is scheduled for September 27-29 at the Mandalay Bay Resort and Casino.