Honda is following Ford's lead and debuting the second twin-turbocharged V6 to be used by Daytona Prototypes in the United Sports Car Championship. The wait won't be long to see it on track because the new engine will debut with the Starworks Motorsport team in a Riley Gen3 prototype chassis at the 12 Hours of Sebring from March 12-15.
The new HR35TT engine is based on Honda's J35 production V6 found in a variety of its models, including the current Accord. The racing version benefits from dry sump lubrication, but is still similar to the production version with an aluminum block, direct injection and single overhead camshafts. It is fueled by 100-octane E10 fuel, but like many racing engines, exact power figures have not been released.

Starworks has had a close relationship with Honda since it won the LMP2 class at the 24 Hours of Le Mans and in the FIA World Endurance Championship in 2012 with a Honda Performance Development ARX-03b chassis and Honda engine. We can't wait to see this new mill hit the track, and see how it fairs against Chip Ganassi Racing's EcoBoost-powered Riley. Scroll down to read the press release for the full details.
Show full PR text
Honda Performance Development Unveils 3.5-Liter Prototype Engine

02/20/2014 - SANTA CLARITA, Calif.
Starworks Motorsport to Debut HR35TT at Sebring
Latest Racing Application of Production-Based Honda V6 Engine
Two-Team HPD Effort In TUDOR United SportsCar Championship


Honda Performance Development Thursday announced a new, 3.5-liter racing application for the versatile, production-based Honda V6 engine found in a wide range of Honda/Acura passenger cars and light trucks and now raced in multiple categories worldwide.

The Honda HR35TT twin-turbocharged V6 is expected to make its TUDOR United SportsCar Championship debut at the 2014 Mobil1 12 Hours of Sebring, mounted in a Riley Gen3 prototype chassis campaigned by Starworks Motorsport.

Previously, Starworks partnered with HPD to win the LMP2 class at the 24 Hours of Le Mans and World Endurance Championship in 2012, using HPD's ARX-03b chassis and Honda HR28TT twin-turbocharged V6, which also is derived from Honda's J35 series of engines.

Starworks becomes the second team to utilize Honda power for the new TUDOR championship. Extreme Speed Motorsports campaigns a pair of prototype class HPD ARX-03b Hondas, after a successful initial season with the same package in the 2013 American Le Mans Series.

"This is an exciting program for HPD and our customer teams in the TUDOR United SportsCar Championship," said Steve Eriksen, HPD Vice President and COO. "Adding Starworks, a team that achieved great success with us in 2012, in a prototype machine alongside the proven HPD-Honda combination run by Extreme Speed Motorsports provides HPD with a strong, balanced attack in the inaugural TUDOR Championship."

"It's a fantastic feeling to be partnering with Honda once again," said Starworks team owner Peter Baron. "No doubt we had amazing success with HPD in 2012, but unfortunately it was only a one-year program. We have had numerous conversations over the past two years about building a Daytona Prototype motor and we're thrilled to see it come to fruition. We absolutely love working with HPD and have been in collaboration to find a new opportunity to partner with them again. We will have our work cut out with the steep learning curve to get us to Victory Lane, but HPD brings determination and success to every program it touches. Although HPD already competes in the Prototype class, we feel this is huge step for the TUDOR series and Starworks is thrilled to be part of it."

Starworks Motorsport has compiled an enviable record in Daytona Prototype competition, with five race victories, including back-to-back wins at Indianapolis in 2012 and 2013; and a second-place finish in the Daytona Prototype team championship in 2012, with two victories and six podium finishes. That same year, Starworks became the first American-based prototype team to win an FIA World Championship since 1968, and HPD won its first world title in WEC competition.

The HPD-developed twin-turbocharged Honda engines to be used in the TUDOR championship are both derived from the Honda J35 series of production V6 engines, and include relevant twin-turbocharger technology, along with the efficiency provided by direct fuel injection.

The HR35TT is yet another competition application of the ubiquitous J35 engine. The first, the HR28TT, was designed for LMP2 competition and won in its American Le Mans Series debut in 2011. The engine has gone on to record 24 individual race victories and three series titles in the American Le Mans Series, World Endurance Championship and European Le Mans Series Competition.

Other variants of the engine have been raced in Japan's Autobacs SuperGT Championship, the One Lap of America competitive rally and Pikes Peak International Hillclimb.

Honda Performance Development (HPD) is the Honda performance company within North America. Located in Santa Clarita, Calif., HPD is the technical operations center for high-performance Honda racing cars and engines. The company is marking its 20th anniversary in 2013.

As an engine supplier to the IZOD IndyCar Series, Honda has scored 204 race victories in both CART and IZOD IndyCar Series competition since 1994, and powered Scott Dixon to a series-high four victories and the 2013 IZOD IndyCar Series drivers' championship.

HPD offers a variety of race engines for track applications from prototype sports cars to karting; and showcases "fun-to-drive" products for professional, amateur and entry-level racers.

For a photograph of the Honda HR35TT V6, go to:
http://broadcast.sportssystems.com/hosting/display.cfm?key=101706

Honda HR35TT V6 Engine

Engine Type Aluminum alloy, twin-turbocharged, direct fuel-injected V6
Displacement 3.5 liters
Valve Train Single overhead camshaft, four valves per cylinder
Crankshaft Alloy steel
Pistons Forged aluminum, low-friction coatings
Connecting Rods Machined alloy steel
Engine Management HPD/McLaren
Ignition System Digital inductive
Lubrication Dry sump system
Cooling Single mechanical water pump
Fuel E10 100-101 octane gasoline, 10% ethanol


I'm reporting this comment as:

Reported comments and users are reviewed by Autoblog staff 24 hours a day, seven days a week to determine whether they violate Community Guideline. Accounts are penalized for Community Guidelines violations and serious or repeated violations can lead to account termination.


    • 1 Second Ago
  • 23 Comments
      mylexicon
      • 10 Months Ago
      Production-based 3.5L V6 twin turbos should have been the new IndyCar formula
      bonehead
      • 10 Months Ago
      Seriously make an S3500. We need an s2000 replacement with a high revving 6
      RetrogradE
      • 10 Months Ago
      Honda? V6? Get outta town. . .
      montegod7ss
      • 10 Months Ago
      Ok, a twin turbo V6. Welcome to the '90s. How about Honda make a V8 and stick it in, something?
        Karl_T
        • 10 Months Ago
        @montegod7ss
        And, please, regale us all with the technological advances of the production Monte Carlo. ANY year Monte Carlo....
          Matt
          • 10 Months Ago
          @Karl_T
          Karl Benz? As in Mercedes-Benz? The guy who built the Benz Patent Motorwagen and paved the way for the modern automobile as the inventor of the gas-powered automobile? That Karl did more than the Monte Carlo ever did for the advancement of automobiles. Foot, meet mouth.
          montegod7ss
          • 10 Months Ago
          @Karl_T
          You missed the point entirely, which isn't surprising since the Internet is full of imbeciles. Honda fanboys unite!
          Karl_T
          • 10 Months Ago
          @Karl_T
          Hate to break it to you Monte but there isn't a current Honda product I'd want. Or even want to be seen in. . Well, an Accord V6 coupe would be nice.... I'm sure you've seen the tail lights of one from your Monte. And funny that someone too scared (insecure? embarrassed?) to use any part of their real name would try to find issue with someone else's name. Since there are no Monte Carlo highlights to be had, by all means, tell us YOUR accomplishments.... First to not fall asleep working night security at the mall? First to fit 50 pepperonis on a medium pizza? Maybe first to spread 1 jug of windshield wiper fluid between 3 gas pump islands?
        chrishs2000
        • 10 Months Ago
        @montegod7ss
        And a V8 and a stick is ultra modern? Oh, okay. I think you've gone nuts on the toxic fumes from your Playskool interior.
      rsholland
      • 10 Months Ago
      SOHC? In a racing engine?
        chrishs2000
        • 10 Months Ago
        @rsholland
        Why not? The engine on which this is based is far more efficient and smooth than the majority of its DOHC competitors. Number of camshafts does not directly correlate to anything except the total cost of camshafts.
          rsholland
          • 10 Months Ago
          @chrishs2000
          Most race teams would disagree with you. DOHC layouts have long been preferred to SOHC.
        • 10 Months Ago
        @rsholland
        [blocked]
        Jeff
        • 10 Months Ago
        @rsholland
        One cam seems to be more than enough for the Chevrolet Small Block V8....
          AcidTonic
          • 10 Months Ago
          @Jeff
          Yeah for 72 horsepower per liter on the average smallblock from GM. That was decent.... in 1990 when a 5.0 made 225 horsepower.
          foamypirate
          • 10 Months Ago
          @Jeff
          Who gives a **** how much power per liter it makes? If it's compact, lightweight, less complex, and makes just as much power, then it seems to me that HP/liter is an irrelevant statistics invented by ricers to make themselves feel better.
      Karl_T
      • 10 Months Ago
      Probably a great engine wasted in a joke series.
      Car Launch India
      • 10 Months Ago
      I am so much impressed after this story on turbo v6 engine bringing by Honda.. Thanks for it.. www.upcomingcarsindia.org
      SneakATax
      • 10 Months Ago
      This should be the heart of a modern prelude
      Tantoon
      • 10 Months Ago
      No but the 2015 NSX will have a V6TT.......
      chow
      • 10 Months Ago
      so when this engine idle sound like CHING CHING CHING [-] omu [-]omu [-] omu :)
      bleexeo
      • 10 Months Ago
      Can they make it fit in the back of an AWD Fit? That'd be somethin'.
      Kelly Hatcher
      • 10 Months Ago
      MAKE THE S3500 with this engine. Keep it RWD NO SHAWD. Make minor adjustments to design not major.
    • Load More Comments