Dallaire 5.9L Compound Cummins Turbo Engine



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Dallaire’s diesel performance proudly displays on their company website that they are “just a few 16-year-old adults with diesel engines and lots of parts destroyed”. The four men who run Dallaire’s diesel operation, including three brothers, are now in their late twenties and have successfully cultivated a respected diesel performance workshop in Bonnyville, Alberta, Canada.

The store was originally founded by owner Jeremy Dallaire, who now handles most of the front-end activities such as sales and customer service. Jeremy’s brothers, Shane and Colin Dallaire, as well as Noah Alexander, focus on technician work.

Dallaire’s Diesel Performance team

The store moved to its current location three years ago. Despite being a small town, Bonnyville is located on one of the largest heavy oil fields in Canada. This, coupled with the city’s close connection to agriculture within the economy, made it a great place to set up a diesel repair shop.

“Even though it’s small, it’s competitive here,” says Jeremy Dallaire. “We have a lot of work to do at all times and we are always busy. “

The 4,000 sq.ft. store owns three hoists and focuses strictly on diesel work, which Dallaire says is unique to their shop compared to others in the area. Cummins, Duramax and Powerstroke are all fair at Dallaire, with no engine type necessarily taking first place.

Located in Bonnyville, Alberta, Canada, Dallaire works on Cummins, Duramax and Powerstroke applications

As a young team, Jeremy and his technicians had to work hard to make a name for themselves and gain the trust within their small community.

“Before us, there wasn’t a lot of performance scene here or too much interest in it,” Jeremy says. “As young contenders for the game in our competitive hometown, we needed something to set us apart. “

With their social media pages, Dallaire decided that a good way to advertise and show off their craft was to build a performance workshop truck that they could drive around town and use it as a “moving business card.”

5.9L Cummins

For the project, the team found a 2007 Dodge Ram 3500 single cab and then converted it to a double cab.

“All we knew at the time was that we wanted something a little bigger than what you usually find here, so the duel was something fun we could do,” he says. he. “Other than that, we really wanted to keep it simple so we could take her to the streets. We certainly didn’t want to have to tow it.

Dallaire wanted a street truck, but didn’t want to waste power along the way. For construction, the team chose to start with an old 5.9L Cummins engine block and build around it.

It originally had a compression issue so it was taken apart and worked on, eventually getting bored at .020˝ with a Stage 2 countersunk cylinder head with side air intake and minor head flow work.

All machine work and lower end assembly was done externally by Al Lee Racing Engines, while Dallaire assembled the upper end.

“We wanted it to be powerful, but to remain original so that it was interesting without being too crazy where people didn’t know what they were watching,” says Jeremy. “First, we went with the Carrillo piston-rod hybrid setup because that was what was hot back then and they are reliable. They take power well and that makes power very good.

To support the lower end, the store used an industrial injection gorilla belt for stability with ARP rod bolts. The engine has heavy-duty bearings, a stock crank, and an O-ring cylinder head.

Hamilton 103-lb. valve springs manage intake and exhaust during heavy combustion cycles, and additional components include a Colt Stage 4 camshaft, Billet Fleece rocker arm bridges, and HD main bearings.

“It’s a simple recipe, but it works great and we all know 5.9L love abuse,” he says. “Originally we weren’t aiming for those higher horsepower numbers, but now we’re getting there. “

The truck is currently developing around 1,200 horsepower, thanks in part to the compound turbo system chosen by the team.

“We have two turbos in our logo, so naturally we had to have two in the truck,” he says.

The turbo setup consists of a BorgWarner S472 over an S488, which is external with a Steed Speed ​​manifold. For fuel, there are 300% higher Flux Diesel injectors, one 12mm S&S piston pump, one 10mm piston pump and two Fass 150 fuel pumps.

Dallaire’s ultimate goal is to boost the truck to 1,400 horsepower for a little more oomph on the track. The engine is currently unsheathed and the Dallaire team is considering upgrading to a 6.7L block and sheathing it to 5.9L for added strength.

Hopefully, Dallaire’s “continuing business card” will inspire others in the region to realize their dreams of diesel performance. We can’t wait to see more of our friends from the north!

Diesel of the Week is sponsored by AMSOIL. If you have an engine that you would like to feature in this series, please email Greg Jones, Editor-in-Chief of Engine Builder at [email protected]



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