Sisu Performance Labs Racing Team (formerly Underbite Racing) was founded by Bryan Bursey in 2015 with an entry in Targa Newfoundland - a grueling 6‑day tarmac rally through his home province. Over the past decade, Bryan has transitioned to Spec Miata and endurance racing in Alberta and abroad.

By linking the racing team with Hilkka’s coaching practice, we’re embracing the Finnish concept of “sisu” - unyielding grit and determination in the face of adversity - while reinforcing the link between physical preparation and motorsport performance.

There’s been some progress over the years… I’ve really enjoyed the learning curve associated with racing - the car prep, the driving, and (less so) the occasional repair work. #PersistencePassionPossibility
There’s been some progress over the years… I’ve really enjoyed the learning curve associated with racing - the car prep, the driving, and (less so) the occasional repair work. #PersistencePassionPossibility
After more than a decade as Underbite Racing, we’re retiring the name. Starting January 1, we’ll compete as Sisu Performance Labs Racing Team. By partnering with @sisuperformancelabs, a new endurance coaching venture, we’re embraci
After more than a decade as Underbite Racing, we’re retiring the name. Starting January 1, we’ll compete as Sisu Performance Labs Racing Team. By partnering with @sisuperformancelabs, a new endurance coaching venture, we’re embracing the Finnish concept of “sisu” - unyielding grit and determination in the face of adversity - while reinforcing the link between physical preparation and motorsport performance. Watch for a fresh livery on car #199, and follow both Sisu Performance Labs and Sisu Performance Labs Racing Team for updates. -- #PersistencePassionPossibility
Happy holidays everyone! Looking forward to an exciting start to 2026… ⏰
Happy holidays everyone! Looking forward to an exciting start to 2026… ⏰
Counting down to 2026… 🟢🟢🟢🟢🟢
Counting down to 2026… 🟢🟢🟢🟢🟢
I’d put off installing the Aim camera for a long time thinking it would take forever to integrate with the RaceCapture data. But the initial setup went pretty well. Onto the next phase - capturing heart rate data on this little microprocessor
I’d put off installing the Aim camera for a long time thinking it would take forever to integrate with the RaceCapture data. But the initial setup went pretty well. Onto the next phase - capturing heart rate data on this little microprocessor board and transmitting it through the RaceCapture unit to the camera. This could be extended to automatic driver identification in endurance racing based on unique heart rate monitor IDs. More to come!
I organized the video overlay and confirmed that throttle position and brake switch data is flowing through to the camera. I also had a chance to test the pit to car communication… now I just need a pit crew… 😜
I organized the video overlay and confirmed that throttle position and brake switch data is flowing through to the camera. I also had a chance to test the pit to car communication… now I just need a pit crew… 😜
Finally a productive day in the garage working on Mimi’s Little Sister! I picked up parts during my latest trip to Houston. I got the new @aimsportsdata camera installed, repaired and tidied wiring around the disconnect switch and fuse block,
Finally a productive day in the garage working on Mimi’s Little Sister! I picked up parts during my latest trip to Houston. I got the new @aimsportsdata camera installed, repaired and tidied wiring around the disconnect switch and fuse block, then started planning wiring for keyless start. Lots more to do!
For the first time since 2017, I will not be spending the weekend at @angleseycircuit for the @mission_motorsport @raceofremembrance. I’m going to miss the people, the experience, and the Jaffa Cakes (and, less so, the horizontal rain). Best
For the first time since 2017, I will not be spending the weekend at @angleseycircuit for the @mission_motorsport @raceofremembrance. I’m going to miss the people, the experience, and the Jaffa Cakes (and, less so, the horizontal rain). Best wishes to everyone participating and supporting. I’ll be following the live feed…
They finally meet… Mimi (bottom bunk) and Mimi’s Little Sister (top bunk).
They finally meet… Mimi (bottom bunk) and Mimi’s Little Sister (top bunk).
Mimi is rejoining the fleet…
Mimi is rejoining the fleet…
Well… that didn’t go to plan. I was driving our 3rd stint on Saturday and about 90 minutes in, I noticed the transmission temperature had dropped slightly… odd. Starting the next lap, the car felt slow at Turn 1 and had started
Well… that didn’t go to plan. I was driving our 3rd stint on Saturday and about 90 minutes in, I noticed the transmission temperature had dropped slightly… odd. Starting the next lap, the car felt slow at Turn 1 and had started to stumble at Turn 7. I saw the check engine light while I limped it back - eventually shutting down and coasting back to our pit stall. The water pump had failed, causing the engine to overheat rapidly and catastrophically, putting an end to our weekend. I wish I’d done something different… maybe the new water pump would have kept us running. 😔
It was hectic getting the car on track this morning - gates open at 9am and race start at 9:30am. But we’re running strong and moving up the order… 5th after 1.5 hours. 14.5 hours to go
It was hectic getting the car on track this morning - gates open at 9am and race start at 9:30am. But we’re running strong and moving up the order… 5th after 1.5 hours. 14.5 hours to go
There’s been some progress over the years… I’ve really enjoyed the learning curve associated with racing - the car prep, the driving, and (less so) the occasional repair work. #PersistencePassionPossibility After more than a decade as Underbite Racing, we’re retiring the name. Starting January 1, we’ll compete as Sisu Performance Labs Racing Team. By partnering with @sisuperformancelabs, a new endurance coaching venture, we’re embraci Happy holidays everyone! Looking forward to an exciting start to 2026… ⏰ Counting down to 2026… 🟢🟢🟢🟢🟢 I’d put off installing the Aim camera for a long time thinking it would take forever to integrate with the RaceCapture data. But the initial setup went pretty well. Onto the next phase - capturing heart rate data on this little microprocessor I organized the video overlay and confirmed that throttle position and brake switch data is flowing through to the camera. I also had a chance to test the pit to car communication… now I just need a pit crew… 😜 Finally a productive day in the garage working on Mimi’s Little Sister! I picked up parts during my latest trip to Houston. I got the new @aimsportsdata camera installed, repaired and tidied wiring around the disconnect switch and fuse block, For the first time since 2017, I will not be spending the weekend at @angleseycircuit for the @mission_motorsport @raceofremembrance. I’m going to miss the people, the experience, and the Jaffa Cakes (and, less so, the horizontal rain). Best They finally meet… Mimi (bottom bunk) and Mimi’s Little Sister (top bunk). Mimi is rejoining the fleet… Well… that didn’t go to plan. I was driving our 3rd stint on Saturday and about 90 minutes in, I noticed the transmission temperature had dropped slightly… odd. Starting the next lap, the car felt slow at Turn 1 and had started It was hectic getting the car on track this morning - gates open at 9am and race start at 9:30am. But we’re running strong and moving up the order… 5th after 1.5 hours. 14.5 hours to go