Twin-Turbo Gen II Coyote Engine - Engine Builder Magazine

Twin-Turbo Gen II Coyote Engine

We've been more apt to check out Mustangs recently thanks to the high-performance potential of the Coyote engine, and Kolby Bouck's 2017 Mustang with a Gen II Coyote engine is definitely no exception. Check out the details of this twin-turbo Gen II Coyote engine build!

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With the recent success Brett LaSala has had with his Fast Forward Race Engines-built 5.0L Coyote, we’ve been more apt recently to turn our heads in suspense when passing Mustangs at race events. One such instance was during Sick Week 2024 when we came across Kolby Bouck and his white Mustang, which housed a twin-turbo Gen II Coyote engine. We caught up with Kolby, who hails from Canada, to get the details of his Coyote engine.

2017 Ford Mustang

“I’ve had the car coming on four years now,” Bouck explained. “I haven’t been able to have it out and race it a lot because our seasons are pretty short where I’m from up in Canada, so this past year we took it on a drag-and-drive up north to really sort some things out and some issues we were having. Things came around and we found a couple of our major problems and the engine has been really good.

“It’s a Gen II Coyote. It’s got some Gen I parts in it that are a little stronger just as far as timing chains and such. It has a really good ignition system and Holley Smart Coils on it. It’s got a good Plazmaman intake, which is definitely a show piece, but it’s functional as well, and the engine also has some good stuff on the bottom end too.”

Gen II Coyote engine

According to Kolby, the Coyote also features a Gen II block that has been sleeved with Darton sleeves. The stock Ford Gen II crank has been retained and paired with upgraded pistons and connecting rods from the aftermarket.

Up top in the cylinder head, the Coyote features new aftermarket camshafts to help get air in and out, but to also allow for higher rpm and higher boost levels. The heads themselves have not been ported and are as-cast from Ford.

“There’s not too much wizardry, but it’s been working really well for us,” he says. “We’re pretty impressed with how it’s performing.”

Gen II Coyote engine

Part of that strong performance is aided by the twin-turbo setup, which features two Precision Gen II 68/70 turbos, which Kolby says see 38-lbs. of boost when racing.

“They’ve been flawless,” he says. “We’ve had them on the car almost four years. I haven’t serviced them. They’ve been working really well with zero problems so far. The car is capable of running well past an 8.50 (Kolby’s cage cert) in the quarter, so we chose to do the eighth mile Rowdy Radial class, so we could get some steam and let it eat for the eighth mile and see what we could do.

Gen II Coyote engine

“We ended up going upwards of 38-lbs. of boost. It’s a very heavy car. I scaled it at Orlando on day one – it weighed 3,800-lbs. We managed to do a 5.07 at 147 mph in Orlando, which we do the math that’s making some power and we managed to do a 5.01 at Bradenton.

“Our goal was to come down here and run like 5.40s and 5.30s, so the fact we’re past that is pretty cool. Now, we’re hoping to go a little quicker. We’d really like to see that four number with an XX behind it.”

Gen II Coyote engine

The performance numbers are even more impressive when you factor in that the Mustang is a full interior car with front and back seats. But, due to Kolby’s drag-and-drive experience, it’s not too crazy what he’s managed to make this car do.

“We have a drag-and-drive in Alberta in Saskatchewan, Canada called Miles of Mayhem,” Bouck says. “I’ve done it three years. The first two years I did it with my stick car, and last year was the first year I did it with this car. We didn’t go to win or to even place – we really wanted to sort the car out. It had a lot of things that we needed to figure out and what’s better than taking it on a 1,200-1,400 mile drive. It’s absolutely awesome.

Gen II Coyote engine

“With the weight limitation and being at the cage cert already, we’re pretty happy with the level this car is running. I’d just like to do some more races with it at this range and just hold things together.”

As it turned out, Kolby has quite the bracket car, and wrapped up Sick Week with a third place finish in the Rowdy Radial class thanks to ETs of 5.07 at 147 mph, 5.01 at 147 mph, 5.01 at 147 mph, 5.02 at 147 mph, and 5.02 at 147 mph for a five-day average of 5.030 at 147 mph.

Engine of the Week is sponsored by PennGrade1Elring – Das Original and NPW Companies. If you have an engine you’d like to highlight in this series, please email Engine Builder Editor Greg Jones at [email protected].

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