Kye Kelley’s New Pat Musi 903: Shocker Gets a Power Boost for Small Tire Wars

Hey y’all, welcome back to Street Outlaws Talks — your go-to spot for everything street racing, no prep, and of course, all the big names doing big things in the scene. Today we’ve got something fresh and exciting to talk about — Kye Kelley just dropped some news that has the small tire world buzzing.

Photo by Kye Kelley Racing

Over on his YouTube channel, Kye gave fans a first look at his brand-new Pat Musi 903ci motor that’s getting dropped into The Shocker. This isn’t just any engine upgrade — this one means business, especially with a small tire no prep showdown coming up this weekend against none other than Ryan Martin and Murder Nova.

Back to His Roots with Pat Musi Power

If you’ve been following Kye Kelley for a while, you know he’s no stranger to Pat Musi engines. His first go with Musi power was all the way back in 2016, and it left a mark. In either Lights Out 7 or 8 (we're leaning toward 2017), Kye was running the Shocker on radials with a Pat Musi 903 and clicked off a wild 4.13 at 185 mph. Not bad for a car that hadn’t yet hit its stride.

Later on, he moved up to a Musi 959 around 2019, but for his street racing endeavors, he’s been using a 737-inch motor — the same one he’s currently looking to sell. That 737 served him well in street-style shootouts, but as competition keeps leveling up with twin turbos and ProCharged Hemis becoming more common, Kye needed a little extra firepower.

Photo by Kye Kelley Racing

Why the 903 Makes Sense Right Now

So why go back to the 903 now? Simple — it’s the sweet spot for small tire no prep racing. The motor is big enough to hang with ProCharged Hemis on 28x10.5 tires, especially when the track isn’t super sticky. It’s not just a nostalgia move — it’s a calculated choice.

While the 903 can be upgraded to a 959 (with a different crank and some internal changes), Kye seems pretty confident that the 903 will deliver the goods. On a no prep surface, it’s all about getting down the track clean, not necessarily out-horsepowering everyone.

He’s proven he can run with the best. At the last small tire race he attended, Kye took the win — even though he had to push that 737 hard to do it. With the new motor, he won’t have to lean on the tune quite as much, and that should give him a little more room to stay consistent over multiple rounds.

Photo by Kye Kelley Racing

What’s Next for the Shocker?

This weekend’s race with Murder Nova and Ryan Martin is going to be the perfect testing ground for the new setup. Kye might not have a ton of test hits on the 903 just yet, but he knows his car and how to get it down the track. Even if things don’t go perfectly on day one, the potential is huge.

And let’s not forget — if he ever needs to turn it up even more, he’s still got JangALang, his screw-blown Hemi car that’s built for serious action. But for now, the Shocker is the focus, and with a new heart beating under the hood, it’s ready to cause some chaos on the no prep scene.

Stay locked in right here at Street Outlaws Talks — we’ll keep bringing you the real stories, the real tech, and the real action from the world of street and no prep racing. Don’t forget to subscribe and drop a comment on who you think takes the W this weekend — Kye, Ryan, or Murder Nova?