By Jan Knobbe

As we roll into a new year, it’s the perfect time to reflect on just how far engine technology has come since we first opened our doors in 2005. Over the past 19 years, we’ve seen some incredible advancements in the world of engine upgrades, and it’s been a thrill to evolve right alongside them. Let’s take a ride down memory lane and compare the work we were doing back then to the cutting-edge technology we’re using now.

The Early Days: Twin Cam & Evo Engines

Back in the day, it was all about working on twin cam and Evo engines. Engine upgrades typically meant rolling up our sleeves for valve jobs and hand porting. We were turning 88 cubic inch motors into 96 cubic inch beasts, or bumping 96 cubic inches up to 103. And when we went big, we were cranking out builds that maxed out at 110 or 117 cubic inches.  

At the time, these were solid, reliable upgrades that delivered the extra power riders were chasing. But compared to what we’re doing now? Let’s just say, the game has changed.

Modern Muscle: Twin Cam & M8 Evolution 

Fast forward to today, and we’re diving into a whole new world of possibilities with twin cams and Milwaukee-Eights (M8s). The technology has come a long way, and so have the results.  

These days, upgrades often include CNC porting for heads, big valves, and advanced camshaft designs. Tools like airflow benches let us measure airflow with pinpoint precision, helping us get the most out of every build. Camshaft technology, in particular, has made massive strides. Today’s cams allow for better airflow in and out of the cylinders and duration that allows the exhaust valves to stay open longer to cool the exhaust chambers but also increases horsepower and torque—without requiring higher-octane fuel.  

When it comes to M8s, we’re talking serious performance. Their two-over and four-over valves, paired with CNC porting heads, nearly double the airflow of factory heads. Add to that their single-cam configuration, which reduces drag in the cam chest, and you’ve got a recipe for freeing up horsepower in ways we couldn’t have imagined 15 years ago.  In addition, crank shafts balancing, weling, plugging and windowing drop weight off the crank assembly making rotational inertia much less allowing the motor to rev more freely.

How Big Can We Go?

With M8s, the standard upgrades are no joke. A 107 cubic inch motor can jump to 124 cubic inches, and a 114 or 117 can climb to 128. These upgrades aren’t just for show—they’re dependable, everyday riders. (Trust us, we’ve tested them on our own bikes.)  

But if you really want to go big, we’re talking about builds that exceed 155 cubic inches. Years ago, an 88 cubic inch motor built up to 96 would put out about 95 horsepower. Now? Factory motors start at 107 or 114 cubic inches, already making 100 horsepower out of the gate. And with upgrades, we’re hitting 155 cubic inches and seeing 200 horsepower at the ground.  

And for the gearheads out there? Yes, pro chargers and turbochargers are very much on the table.

Staying Ahead of the Curve 

One thing that hasn’t changed over the years is our commitment to staying on top of the latest innovations. The evolution of engine technology is constant—there’s always a smarter, better way to gain horsepower—and we make it our mission to stay ahead of the curve.  

Every rider has different needs, and we pride ourselves on working with you to find the perfect fit for your bike. Whether you’re looking for a dependable daily driver or a full-on powerhouse street or race build, we’ve got the experience and the tools to make it happen.

Ready to Upgrade? Let’s Talk.

If you’ve been thinking about taking your engine to the next level, now’s the perfect time. Call us at 636) 462-1648 and ask about our **December and January engine upgrade specials**. Or better yet, stop by the shop and chat with me, Jan, to figure out what upgrades will work best for you and your ride.  

Let’s turn your bike into the beast it was always meant to be.