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Chevy exec discusses development of latest low-downforce package

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Yesterday, NASCAR announced further downforce reduction changes for the Sprint Cup Series that will be used for the June race at Michigan International Speedway and in July at Kentucky Speedway.

The changes include:

  • A reduced spoiler that will be 2.5 inches high and 53 inches wide. The current spoiler is 3.5 inches high. The width is the same as the width of a spoiler for superspeedway events.
  • A tapered deck lid fin
  • Neutral rear toe/skew setting
  • 2-inch wide splitter with current center section length.

Chevrolet has conducted a Q&A with Pat Suhy, Chevrolet Racing’s NASCAR Group Manager to answer questions about the package that could be utilized in 2017 and give insight into how the package was developed and tested last week at Michigan.

Q: HOW DID THE NEW TWEAKS TO THE RULES PACKAGE COME ABOUT?

PAT SUHY: “I really think it started in discussions between the teams and NASCAR about where the teams are spending their resources; and wondering if this is really an area they want to race in? NASCAR knows that over time, teams have gained aero performance, whether it’s increased downforce or reduced drag, as they spend more and more time in the Wind Tunnel and as they have worked on the tires to have more grip and more give-up. Gaining back more of the downforce they lost by whatever means, jeopardizes all the work that has been done and fans could see racing return to what it was like last year. I think as a problem to solve it was the question of, ‘Well, where are you guys gaining downforce? How come the cars have all this skew in them?’

“I think there were other discussions going on about electrical loads and battery life and stuff like that. You come to realize that the two things that were just done, reducing the number of fans underneath the car and reducing the skew in the rear of the car, were two of the areas the teams had been working in to gain back a lot of the performance that the body change was supposed to eliminate. Collectively, I think the teams and NASCAR agreed that limiting those things wouldn’t be a bad way to slow the progress down that path and allow them to focus their resources elsewhere.”

Q: HOW WILL THE NEW AERODYNAMIC CHANGES AFFECT HOW THE CARS DRIVE?

SUHY: “The low downforce package that was tested at Michigan last week fundamentally probably won’t change things a lot as far as the way the cars handle. I believe NASCAR and the teams that participated with them on the project directly did a really good job of doing things that were sensible to maintain the aero balance and be simple to implement. The aero balance really didn’t shift very much from where it is today.

“What is going to probably change is the way the cars behave in traffic. Based on what we saw at Michigan, we are going to see corner entry speeds go up, and mid-corner speeds go down. It’s going to put a lot of the ‘driver’ back in the car. It is partway back to the package we saw last spring at Michigan when they tested the 2015 low downforce package there. The speeds were still too high, but I think between the engine changes that happened this year and the fact that they didn’t go all the way to that low downforce package, we are going to see a pretty racy package that a lot of the drivers have been talking about wanting.”

Q: DO YOU THINK TRYING THESE NEW CHANGES IN THE ALL-STAR RACE AND THE TEST AT MICHIGAN WAS ENOUGH EXAMINATION TO IMPLEMENT THESE CHANGES?

SUHY: “I think the truck arm rule and the fan rule are done for the rest of the season. I don’t really think that needed a lot of testing.  That’s just a matter of trying to get some of the gains that the teams have made in downforce out of the car so they are more like what we had at the beginning of the season.  As far as the new future aero package being tested at Michigan and Kentucky, I do think that is adequate testing.  Actually, that is probably more than adequate based on what we know and how the test went last year on the two packages versus how the racing turned out.  My opinion is you might have been able to do it just based on the tire test at Michigan.”

Q: ARE THERE FURTHER STEPS THAT CAN BE TAKEN TO REDUCE DOWNFORCE?

SUHY: “You get to a point where you can take more downforce off the cars, but there are diminishing returns in terms of the racing quality.  I think there is a sweet spot there.  Along the way you can’t stop working on tires.  Another thing you could to if you really want the cars to be harder to drive, I think, is to put some of the horsepower back in them. There are a lot of things you can do if it’s about making the drivers drive the cars.  I think the teams are working well with NASCAR.  I think the whole competition committee that NASCAR has together is coming to grips with the fact that we, as an industry, have to decide our points of difference.  Where do we want to race each other?  Do we want to race each other with pit guns, or tire fans, or do I want my driver to determine if my car is the fastest?”

Tyler Reddick wins Charlotte Xfinity race

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CONCORD, N.C. —  Tyler Reddick won Saturday’s Alsco 300 at Charlotte Motor Speedway, earning his second Xfinity Series win of the season.

Reddick led the final 16 laps after he took advantage of Cole Custer spinning his tires on a restart.

Reddick beat Justin Allgaier, Jeffrey Earnhardt, Noah Gragson and Justin Haley.

The Richard Childress Racing driver led 110 of 200 laps on the way to his fifth career Xfinity win. The victory follows his Talladega win last month. Reddick has finished in the top four in the last eight races.

Pole-sitter Christopher Bell finished 31st after he made contact with the wall and cut down his right front tire with two laps to go in Stage 2. He attempted to finish out the stage, but the tire shredded and caused significant damage to his car. It’s his second DNF of the season.

Bell’s teammate, Brandon Jones, also got into the wall and cut a tire within a lap of Bell. Jones opted to pit immediately and was able to continue and finished ninth.

STAGE 1 WINNER: Christopher Bell

STAGE 2 WINNER: Tyler Reddick

WHAT’S NEXT: Pocono Green 250 at Pocono Raceway at 1 p.m. ET on June 1 on FS1

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Daniel Suarez fastest in final Coca-Cola 600 practice

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CONCORD, N.C. — Daniel Suarez completed a sweep of Saturday’s two Cup practice sessions by posting the top speed in final practice for the Coca-Cola 600.

Suarez recorded a speed of 180.704 mph around Charlotte Motor Speedway. He made 51 laps in the session.

“I will say one of the best (cars of his Cup career) for sure,” Suarez said. “I feel like this year I’ve had some good race cars with an opportunity to finish in the top five and top 10, but I feel like this car has been pretty solid.  It’s fast and it’s not comfortable to drive 100 percent, but I don’t feel like anyone out there is comfortable right now, so it’s been sunny and hot and slick and that makes things a little bit more difficult, but overall my team has been doing a very good job with Stewart-Haas Racing and Ford Performance.  We have a good piece and hopefully we can take advantage of it tomorrow.”

The top five was completed by Daniel Hemric (180.686 mph), Denny Hamlin (180.553), Ryan Preece (180.469) and Kyle Busch (180.276).

“I felt pretty good with our practice there,” said Hamlin, who will start 20th Sunday. “It was one of our better practices of the year. We’re going to have to start from deep in the field, which is going to be a challenge with traffic, but we’ve got a long race to get it done. Pretty happy with where we’re at.”

Busch has the best 10-lap average at 179.485 mph

Chase Elliott recorded the most laps in the session with 62. He was 18th on the speed chart.

Click here for the speed chart.

Christopher Bell wins pole for Xfinity Charlotte race

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CONCORD, N.C. —  Christopher Bell will start first in today’s Xfinity Series race at Charlotte Motor Speedway.

Bell won his third pole of the season with a speed of 184.313 mph. His previous poles were at Texas Motor Speedway and ISM Raceway.

The top five is completed by Cole Custer (183.187 mph), Tyler Reddick (182.192), Austin Dillon (181.659) and Brandon Jones (181.610).

Justin Haley will start 35th after an axle broke on his No. 11 Chevrolet in the middle of his qualifying run.

Ross Chastain did not finish his qualifying run after experiencing an electrical problem in the ignition on his No. 4 Chevrolet. He will start 37th out of 38 cars.

The Alsco 300 is scheduled to start at 1:16 p.m. ET on FS1.

Click here for the starting lineup.

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Today’s Xfinity race at Charlotte: Start time, lineup and more

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After a two-week break, the Xfinity Series returns to action today for the Alsco 300 at Charlotte Motor Speedway.

Here’s all the info you need for today’s race.

(All times are Eastern)

START: North Carolina Basketball Legend Phil Ford will give the command to start engines at 1:07 p.m. The green flag is scheduled for 1:16 p.m.

PRERACE: Driver/crew chief meeting is at 10:45 a.m. Driver introductions begin at 12:30 p.m. The invocation will be given at 1 p.m. by Billy Mauldin, CEO and President of Motor Racing Outreach. U. S. Marine Corps Lance Corporal Marc Wilka will perform the National Anthem at 1:01 p.m.

DISTANCE: The race is 200 laps (300 miles) around the 1.5-mile track.

STAGES: Stage 1 ends on Lap 45. Stage 2 ends on Lap 90.

TV/RADIO: FS1 will televise the race. Coverage begins at 12:30 p.m. The Performance Racing Network’s radio broadcast begins at 12:30 p.m. and also can be heard at goprn.com. SiriusXM NASCAR Radio will carry PRN’s broadcast.

FORECAST: wunderground.com calls for a high of 90 degrees and a 20% percent chance of rain for the start of the race.

LAST TIME: Brad Keselowski won this race over Cole Custer and Christopher Bell.

STARTING LINEUP: Click here for the starting lineup.