Honda confident about new twin-turbo IndyCar engine

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With all IndyCar Series engines now required to have twin turbochargers from this year onward, one would figure that Honda, which had previously ran a single-turbo powerplant over the last two years, is at a disadvantage against Chevrolet, which has been using a twin-turbo since its return to IndyCar in 2012.

But in an interview with IndyCar.com, Honda Performance Development technical director Roger Griffiths says that the time spent with the single-turbo has given Honda a “really good insight” into how to go about developing its new twin-turbo, which has already been tested twice on the road course at Sebring and on the oval at Fontana this off-season.

Furthermore, Griffiths says that the new engine is already stacking up nicely against the 2013-spec single-turbo, which helped take Scott Dixon (pictured) to his third IndyCar championship.

“We had evolved the 2013 spec engine with a single turbo to a very high level of development so we had a very high bar that we had set for ourselves in terms of drivability and response and those kinds of things,” he said.

“We were pleasantly surprised by the rate at which we reached the same sort of level of performance with the 2014 engine given that it was all kind of new.”

Griffiths also gave credit to Simon Pagenaud from Honda-powered Schmidt Hamilton Motorsports. The French driver, who finished third in last year’s standings, took time after Thanksgiving to meet with HPD engineers and provide them with feedback.

“Our guys could come back from a test and say, ‘OK, these are the top five complaints and what needs fixed.’ But it’s our translation of what the driver is saying to the design engineers,” Griffiths explained.

“Sitting down with 10 of our young engineers, they quickly get past the shock of an IndyCar driver sitting down with them in the meeting room and it’s just another person trying to do a job. They’re hearing from the person driving the car what they want. It really helps our relationship with the drivers. Simon gave us some good pointers.”

After losing the last two IndyCar manufacturers’ championships to Chevrolet, it’s clear that Honda is doing all it can to wrest the title away from the Bowtie in 2014.

As for Chevy’s view, their program manager, Chris Berube, told IndyCar.com that while they saw advantages in both the single and twin turbo engines, they went with the latter because “[they] believed there was a better application of that.”

Now, as his company enters its third season after re-entering open-wheel competition, Berube feels that their experience with the twin-turbo will give them an early-season edge.

“I think we have a good understanding of the twin turbo application and that in itself will be an advantage initially,” he said.

Houston Supercross by the numbers: Five riders begin to gap the field

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Chase Sexton stumbled in San Diego and Eli Tomac had a hard fall in Anaheim 2, but the Monster Energy Supercross numbers for Houston suggest they will continue to be the ones to beat in Houston. To do so, they will have to turn back challenges from another pair of riders who have swept the top five in the first three rounds and another with a worst finish of sixth.

Houston Supercross numbers
Cooper Webb’s ability to close races makes him a Houston favorite. – Feld Motor Sports

Despite an accident in his heat in San Diego that sent him to the Last Chance Qualifier (LCQ), Sexton recovered to score a top-five that weekend. His podium finish in Anaheim 1 and overall win last week in Anaheim 2 makes him one of the three riders with a perfect top-five record. He is joined by Cooper Webb, who finished second in the first two rounds and fourth last week, and Ken Roczen, whose consistency in the first three races contributed to him grabbing the top spot in this week’s NBC Supercross Power Rankings.

There are reasons to believe Webb and Roczen can keep those streaks alive.

Webb is the only multiple winner at Supercross’ current Houston stadium. His pair of wins came in 2019 and 2021, the same year he won his two 450 championships.

Clinton Fowler points out this week, that Webb has carried that strength into 2023. Webb had a late surge in Anaheim 1, advancing from fifth to second in the final six laps. In San Diego, he set his ninth fastest lap with two to go and his eighth fastest on the final lap. He posted his fastest lap of Anaheim 2 on Lap 12 while the rest of the field did so on Lap 6 on average.

By comparison, Tomac set his 14th fastest lap on the final circuit in route to winning the Main at San Diego while he was trying to keep Webb at bay.

With a sixth at San Diego, Dylan Ferrandis barely missed sweeping the top five in his first three races as did Tomac with a sixth last week at Anaheim 2.

This will be the 46th year Supercross has visited Houston and with 55 races the city is tied for the second-most with Detroit.

Jim Pomeroy won the first race in the Astrodome during the inaugural season of 1974 on a 250, which was the premiere class at the time. Houston was one of three races held that year along with events at Daytona International Speedway and the Los Angeles Coliseum. All three venues return in 2023 with the first SuperMotocross championship finale returning to the famed LA Coliseum in September.

Webb won most recently in 2021 in the final race of three held there that year as the series executed a strategy of racing in residencies to limit travel during height of the COVID-19 pandemic. Tomac and Justin Barcia also won in Houston in 2021.

Two privateers have started the season on a high note.

Joshua Cartwright and Joshua Varize have each made the last two Mains. Cartwright finished 18th in San Diego and 21st last week in Anaheim 2 – all while working fulltime as a Business Intelligence Analyst at the University of Texas, Dallas. Varize earned a top-15 (12th) in San Diego and was 21st in Anaheim 2 in his third season on a 450.

Michael Mosiman scored his first 250 win last year in San Diego. – Feld Motor Sports

The numbers show none of the active 250 Supercross East riders have won in Houston, so no matter who steps on top of the box, there is going to be a fresh face. That is not surprising since most of the top competitors have not raced at this venue yet.

Michael Mosiman has a pair of top-fives there, however. His best finish was a second in the second 2021 race. Garrett Marchbanks scored a top-10 in his rookie season of 2019 in Houston.

In the 250 East division, Hunter Lawrence is one of the favorites to win the title now that Christian Craig has moved to 450s. Last year he had four wins and nine podiums, but failed to set a fast lap in a race.

The other 250 riders with 2022 wins this week are Mosiman, who earned his first Supercross win last year in San Diego, and Nate Thrasher, who became the fifth new class winner at Daytona.

Jeremy Martin will attempt to extend a record this week in Houston. His division leading SuperMotocross podiums number 65. He has 26 wins in the combined sessions, which ranks fourth all time.

Last Five Houston Winners

450s
2022, no race
2021, Race 3: Cooper Webb
2021, Race 2: Eli Tomac
2021, Race 1: Justin Barcia
2020, no race
2019, Cooper Webb
2018, Jason Anderson

250s
2022, no race
2021, Race 3: Colt Nichols
2021, Race 2: Jett Lawrence
2021, Race 1: Christian Craig
2020, no race
2019, Dylan Ferrandis
2018, Aaron Plessinger

By the Numbers

Anaheim 2
San Diego

More SuperMotocross coverage

Supercross unveils 16th edition of a Ricky Carmichael designed Daytona track
Power Rankings after week 3
Malcom Stewart out for “extended duration” after knee surgery
Haiden Deegan makes Supercross debut in Houston, Justin Cooper to 450s
Talon Hawkins set to relieve injured Jalek Swoll in Houston
Jalek Swoll out for an indefinite period with broken arm
Ken Roczen urgently needed a change
Chris Blose joins Pro Circuit Kawasaki in 250 East opener
Seth Hammaker to miss Houston with wrist injury
Jo Shimoda joins Seth Hammaker, Austin Forkner on injured list
Injury sidelines Austin Forkner for remainder of 2023 SX
Chase Sexton wins Anaheim 2 in 450s; Levi Kitchen takes 250s
Results and points from Anaheim 2