Mosack primed for return to CUBE 3 TA2 Series at Sonoma

Two-time CUBE 3 Architecture TA2 Series race winner Connor Mosack will be back in action in this weekend's JM Environmental Trans Am doubleheader at Sonoma Raceway.

Mosack will once again drive the TeamSLR No. 48 Friends of Jaclyn Foundation/Guthrie's Garage/SLR-M1 Racecars Chevrolet Camaro, making his second appearance with the CUBE 3 Architecture TA2 Series in 2026. The North Carolina native also competed in the season-opening event at Sebring International Raceway.

He is looking forward to venturing back west to Sonoma Raceway, a track where he has experience both with Trans Am and in NASCAR competition. However, with the venue's full layout in use this weekend and a repave prior to the 2024 season, only so much of that experience will translate this weekend.

“Sonoma’s a fun place to race," said Mosack. "It’s a great area to go and hang out in, which always helps. I have a little bit of experience there, but I’ve run only one race there since it was repaved two years ago, which definitely changes how the track drives and races. Sonoma had a lot of tire fall-off before the repave, so you really had to work on your setup to be good in the long run."

With the repave, tire wear isn't as significant at Sonoma. Mosack believes this will lead to much harder racing and a higher pace to the action during this weekend's duo of CUBE 3 TA2 Series races.

"Taking care of your tires and keep driving forward was the main thing," explained Mosack. "Now the fall-off isn’t much of a factor. You’ll still have some, for sure, but now you can kind of build in more speed and you don’t really have to worry about the long run as much. You can just focus on raw speed in your car, and I think it allows you to drive the track a lot harder, where before you kind of just had to take care of your equipment and couldn’t race quite as hard.

"I think having laps there with the repave is going to be helpful going into this weekend. This will also only be my second time running the carousel configuration as I ran the Trans Am race there back in ’22. Our car’s going to be really good, and if that’s the case, it should be a fun weekend.”

Sonoma presents plenty of unique challenges. The winding 2.52-mile circuit has plenty of elevation changes and little in the way of runoff area, requiring the utmost precision from racers.

“You have a lot of elevation change and a lot of blind corners, which you have at a place like Road Atlanta – I would say it probably reminds me of it the most, just for those two reasons. You don’t have as many high-speed corners, and it’s a little slower, more technical, I would say.

"A lot of it is just knowing where you’re at on the track and being able to set yourself up for the next corner, especially the blind corners. It’s really easy to drop wheels off in a lot of places at Sonoma, which can make it challenging when you’re in traffic and makes visibility even harder. I think the challenge of all that is what makes the place fun.”

For some racers, especially those competing full-time with the CUBE 3 Architecture TA2 Series in 2026, there will be a balancing act on Saturday between competing for a strong finish and taking care of your car in order to race again on Sunday without too much wear and tear. While it isn't a non-factor for Mosack, not having the pressure of a championship fight does give him more freedom to go for the win on Saturday.

“If I was full-time, racing for points, I think you’d get a little different perspective," said Mosack. "But for me, my goal is just to go there and win – whatever it takes on Saturday to get it done, that’s the plan, and then we’ll worry about Sunday after the Saturday race.”

• All Trans Am Series presented by Pirelli and CUBE 3 Architecture TA2 Series events are broadcast for free on RacingAmerica.TV, Racing America 24/7, and the official Trans Am Series YouTube Channel. The Racing America 24/7 Streaming Channel is available on The Roku Channel, Prime Video, My Free DirecTV, LG Channels, and PLEX. REVTV serves as the official broadcast partner of Trans Am in Canada.