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The Ultimate Tune-Up

It’s Not What You’ve Got, It’s What You Do With It

By Christian Hazel
photographer: Christian Hazel

Would you think it's possible to increase horsepower, torque, and fuel efficiency by about 10 percent with just a tune-up? Neither did we, but that's just what a trip to The Dyno Shop got us.

We wanted to see what kind of gains could be had by dyno-tuning a relatively stock, high mileage engine typical of what the average four-wheeler drives. Our test mule was an '85 Ramcharger with an Edelbrock Performer manifold, Carter AFB carb, MSD coil, Mopar Orange E.C.U., high-performance plug wires, a 180-degree thermostat, 4.10 gears, and a Flowmaster muffler. The remainder of this 195,000-mile 318 was completely stock.

To see how it went, click on the sidebar links below.


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