Tech Articles

Manual M.D.: Quick Guide to Diagnosing Manual Transmission Troubles

  The manual transmission is not dead — especially not in the hot rodding universe. More importantly, your manual transmission is not dead. It may sound sick or move sluggishly, but chances are your ailing manual transmission can be saved. The first step is pinpointing the problem, so we’ve assembled this quick guide to diagnosing common manual

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ProCharger 101: Inside a ProCharger Centrifugal Supercharger

Centrifugal superchargers have been around since the 1950s, but they’ve exploded in popularity over the last 20 years or so. Centrifugal superchargers are available for a wide range of vehicle applications — from race cars to street-driven vehicles to trucks — and manufacturers have continued to refine the technology and design of the popular power adders. ProCharger

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Wheeling & Dealing: How to Set Up and Adjust a Wheelie Bar

[portfolio_slideshow id=52846] Nosebleed wheel stands are the poster children of drag racing. Everyone likes to see them, but for the most part, they’re not all that conducive to running a low ET or even making a straight lap down the quarter mile. The solution is, of course, the wheelie bar. Wheelie bars have been around

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Vac Visual: Quick Guide to Vacuum Gauge Readings

Intake manifold vacuum is a key indicator of engine performance. By measuring vacuum under different engine loads and conditions, you can track down problems within your engine and make the necessary adjustments or repairs. The key is having a reliable engine vacuum gauge and then knowing how to read it properly. We’ve said it before,

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Spark Plug Evolution: How Plasma is Being Used to Improve Spark Plug Performance

In junior high science class, you probably learned about the three states of matter: solids, liquids, and gases. Chances are you didn’t spend as much time talking about the lesser-known fourth state called plasma. Plasma, which is created by subjecting gas to a large amount of electrical energy, isn’t a new concept. However, plasma-assisted combustion is a

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Finding Balance (Part 1): The Basics of Crankshaft Balancing

Machinists and engine builders have long been taught that, when balancing a crankshaft, its counterweights should equal the weight of the rotating mass, and equal half the weight of the reciprocating mass. Machinists have used this formula to calculate bobweight for decades. While this technique works extremely well for most street and race 90-degree V8 engines, the truth

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