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The Beast is Built - Acura RSX Turbo

Part 2: 2NR and Skunk2 Build a Monstrous 700 Horsepower K20

Text By , Photography by Frank Balogh
  • Acura Rsx Turbo Fuel Pump
    Feeding the off-the-shelf 1000cc RC Engineering injectors is an Aeromotive "eliminator" fuel pump. Rated to handle up to 1100hp for forced induction vehicles, the eliminator supplies an abundance of fuel through Aeromotive -8 lines.
    Acura Rsx Turbo Fuel Pump
    Feeding the off-the-shelf 1000cc RC Engineering injectors is an Aeromotive "eliminator" fu
  • Acura Rsx Turbo Fuel Rail
    The once returnless fuel system found on the K-series engine was modified by Skunk2 to a full return style setup along with a custom fuel pressure regulator and billet Golden Eagle fuel rail.
    Acura Rsx Turbo Fuel Rail
    The once returnless fuel system found on the K-series engine was modified by Skunk2 to a f
  • Acura Rsx Turbo Sparco Seat
    Once the seat brackets and floor bar combination was complete, the factory carpet was reapplied to the floorboard and the Sparco Pro 2000 bucket seat was bolted into place. The final outcome is a clean factory look, with many would be unaware of what lies under the carpeting.
    Acura Rsx Turbo Sparco Seat
    Once the seat brackets and floor bar combination was complete, the factory carpet was reap

As the RSX-T nears the completion phase in our quest to build a 700hp machine, Giovino and his fellow engineers literally locked themselves behind the confines of the engine dyno doors only to reappear for occasional bathroom breaks and a nibble of bread. After a series of dyno pulls, we finally received some positive news that the RSX-T's powerplant had stamped out 575hp at 15psi. Even more impressive was the later portion of the testing which developed an impressive 640hp. "We estimate our 700hp goal will can be accomplished at a conservative 21psi at 7500rpm redline. That's assuming the engine is in proper working condition. You're talking some serious horsepower from a 4-cylinder engine. If engine failure were to occur, the first thing to go would be the collapse of the piston skirts," says Giovino.

It had been less than a week's time since we last heard from Skunk2 as we patiently awaited news of our target 700hp beast. Then it happened. I received a call from Giovino requesting my appearance at the shop. "Scott, why don't you take a trip down to our facilities and witness our engine dyno pulls?" said Giovino. Without second-guessing myself, or Jeff's decision, I hopped into my ride and raced down to lovely Norco, Calif. As I patiently sat adjacent to the closed dyno doors, the stroked K-motor was taken though a series of tunes using an AEM EMS stand-alone under the careful eyes of Giovino.

With a stab of the throttle control, Giovino yanked on the throttle stick as the engine belted out 651.89 wheel hp and 531.7 lb-ft of torque; revving to a conservative 6500rpm. Taking into consideration an 11 percent wheel loss percentage, the numbers would calculate to 723.6hp and 590.2 lb-ft of torque. We had done it. We finally achieved our long awaited goal of 700hp. After sweating bullets and near nervous breakdowns, the RSX was purring to the sound of 724hp. "After multiple engine mishaps we were finally able to build the right combination for our new engine and were rewarded with some respectable numbers but encountered some minor valvetrain problems that prevented the engine from revving beyond 6500 rpm. Regardless of the mishap, the engine had eclipsed all expectations," stated Giovino.

  • Acura Rsx Turbo Floorboard Bracket
    RSX owners gasping at the chopped up floorboard image seen earlier? Rest assured, Skunk2 was well ahead of the game as Dr. Charles combined the seat bracketry with a custom floor bar for added rigidity to the chassis.
    Acura Rsx Turbo Floorboard Bracket
    RSX owners gasping at the chopped up floorboard image seen earlier? Rest assured, Skunk2 w
  • Acura Rsx Turbo Floorboard Bracket
  • Acura Rsx Turbo Act Clutch
    Before the transmission was bolted up into place, an ACT clutch combination was installed, consisting of their Xtreme pressure plate, six-puck race disk and race-recommended Prolite chromoly flywheel, weighing in at a feathery 8.8 lbs.
    Acura Rsx Turbo Act Clutch
    Before the transmission was bolted up into place, an ACT clutch combination was installed,

A one-hit wonder you ask? Don't count on it. After the necessary repairs were made to the engine, The Skunk2 engineers proceeded to conduct a battery of endurance tests, delivering pull after pull to ensure the engine would be well prepared for the rigors of our scheduled road racing test. And who better to beat the shit out of our car than SCCA SPEED World Challenge Touring Car Champion Pierre Kleinubing? Midway though the season, Pierre is currently holding his competitors at bay as points leader in the SCCA touring series. Stay tuned as Pierre, 2NR, and Skunk2 look to rewrite the history books at Buttonwillow Raceway as we take on the challenge of breaking the all-time front-wheel-drive course record. Can't be done you say? Well, neither was achieving 700hp, right? But look who's talking now?

  • Acura Rsx Turbo Crank Damper
    Designed for high performance engines, the ATI Super Damper was manufactured and tuned to eliminate harmful crankshaft harmonics that cause parasitic HP loss.
    Acura Rsx Turbo Crank Damper
    Designed for high performance engines, the ATI Super Damper was manufactured and tuned to
  • Acura Rsx Turbo External Shock Reservoirs
    Are those Moton external shock reservoirs you ask? Ohh my ... these guys at Skunk2 and 2nr are indeed serious aren't they?
    Acura Rsx Turbo External Shock Reservoirs
    Are those Moton external shock reservoirs you ask? Ohh my ... these guys at Skunk2 and 2nr
  • Acura Rsx Turbo Brake View
    Stillen came through to supply a set of AP Racing four-piston calipers with differential bores, AP Racing 330mm cross-drilled and slotted rotors and high performance Ferodo DS2500 high performance street compound pads. The end result is a sick brake setup that can easily tame this 700hp beast.
    Acura Rsx Turbo Brake View
    Stillen came through to supply a set of AP Racing four-piston calipers with differential b
  • Acura Rsx Turbo Dyno
  • Acura Rsx Turbo Dyno View
  • Acura Rsx Turbo Front View
HOTBOX
Skunk2 Racing
http://www.skunk2.com
Garrett Turbo
www.turbobygarrett.com
Castillo's Crankshaft Specialty PWR performance Products
Calico Coatings, Inc
www.calicocoatings.com
RC Engineering
20807 Higgins Ct.
Torrance
CA  90501
Automotive Components Limited (ACL) Aeromotive, INC
Lenexa
KS
www.aeromotiveinc.com
Golden Eagle Manufacturing Advanced Clutch Technology
Wiseco Corporate Headquarters HoseTechniques.com
Pauter Machine
Chula Vista
CA
www.pauter.com
ATI Performance Products
800-284-3433
www.atiperformanceproducts.com
Cometic Gasket Inc
www.cometic.com
Steve Millen Sportparts, Inc
www.stillen.com
Tial sport
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