Category Archives: Featured

Dirt Late Model Racing at Friendship

Friendship Speedway is a dirt track tucked into the foothills of North Carolina. I had the chance to hang out with racer Chris Hargett and mount up a few GoPro cameras on his car for a Crate Late Model race. Friendship used to be an asphalt track, and the facility transitioned to dirt a few…
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Sprint Car on the Chassis Dyno

Now here's something you don't see everyday. A Sprint Car on a chassis dyno is an uncommon sight because Sprint Cars lack a starter. Roush Yates Performance has modified their chassis dyno to become on of the few facilities in the world capable of putting a Sprinter through its paces.
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How to Degree Your Camshaft

Cam designers exert a lot of research and brainpower developing the absolute best cam lobes that open and close the valves at the perfect time to maximize power. Unfortunately, for a traditional cam-in-block engine, like most American V8's, the camshaft doesn't directly activate the valves. There are plenty of other components involved and several ways…
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New Invention is a Better Way to Assemble Pistons and Rods

I don't know about you, but one of the tasks I dislike most about engine building (just behind filing rings) is installing spiral locks. The Lock-In-Tool is a new invention created by a longtime engine building friend that makes the chore of assembling pistons on rods a lot easier. Here's how to use it so…
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Install a Sprint Cup Timing System on Your Ford

When the Ford FR9 engine developed for NASCAR Sprint Cup Series racing by Roush Yates Engines came on line, it instantly made a whole lot of very guarded engine technology for the Windsor engine out of date--at least for the Cup guys. But the rest of us normal folks still building and working with the…
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Improving Your Cylinder Heads with the P-D Valve

At Horsepower Monster, we're not afraid to dive into the hardcore tech because we know you will do whatever it takes to make more power. And we figure that more than a few of you either own--or have access to--a flow bench in order to wring the last bit of juice out of  your cylinder heads.…
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HEI Ignition Tips

Nothing proves engine theories or new parts like a little dyno time. Street Muscle Action decided to take a closer look at ignitions in general and the ever popular HEI ignition in particular. We also tested a stock unit against a high-performance unit from Performance Distributors. The HEI is a popular choice because it requires only…
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Breaking In Your Flat Tappet Camshaft

The first few minutes of operation will determine the long-term survival of your flat-tappet camshaft. More agressive lobe designs, stronger valvesprings and changes to the additives in modern motor oils makes a "wiped" cam lobe much more likely than in the days of classic muscle cars. These are a few very important tips for properly…
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