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Recent Tech Articles

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Recent Tech Articles

Tech Primer: Valve Lifters

Maximizing Your Tires

Boom Mat Makes Your JK Quieter

Tech Guide: Install a BD Tap Shifter In Your Diesel

Tech Guide: The Importance Of Oil Catch Cans

How To: Installing Wilwood Brakes On A 5th Gen Camaro

Video: Remove Sound Deadening The Easy Way With Dry Ice

Video: Get The Most Out Of Your Rotary Engine

Video: Aftermarket Engine Sleeve Basics

Valve Spring Design And Performance: Everything You Could Want To Know

Tech & Tuning

JB's Power Centre is your source for expert technical knowledge! Check out our library of tech guides and articles below.

Tech Primer: Valve Lifters

Valve lifters buffer the motion of the camshaft transmitted from the rockers (and pushrods, in non-overhead valve engines). This critical part of your engine's camtrain can dramatically affect performance.

Maximizing Your Tires

The tire is where the interaction between the car and the surface of the road make contact, and it is precisely there where the action happens. It is the tire that ultimately does all the work, and in order to get the most out of it, one has to understand the limitations of that stout, rolling band of rubber. With a thorough comprehension of the constraints of the tire and how to best utilize the limited performance over the course of a race, a keen driver can and will go far.

For all of the capability and simplicity that comes from the Jeep Wrangler, there’s one area of the vehicle that tends to bug even its most fervent fans: the interior. We’re not here to discuss the design and layout of buttons and electronics inside the vehicle, but more to narrow down the nagging issue of interior noise that can get overwhelming.

Growing up, many of us were only exposed to manual transmissions. Not only were these a little more of a cost effective solution, but they were certainly the better transmission when it came to towing. Over the years, auto manufacturers have been developing better and better automatic transmissions. The take rates are so high, in fact, that some of the OEM’s are no longer offering a manual transmission behind diesel equipped trucks.

Positive crankcase pressure is one of the many unavoidable side effects produced by the normal operation of a piston engine. As the piston travels up and down within the cylinder, a small amount of combustion gases are able to make their way past the piston rings and into your crankcase, this is called blow-by.

It’s widely recognized that upgrading the braking system in a track car is one of the premier changes one should consider, before power, suspension, or cosmetics. While the one-stop performance of OEM brakes may lead one to question the necessity of upgrading, it’s important to consider the severity of track conditions versus the street.

If you’re converting a normal street car into road course terror – be it as a track day car or a full-fledged racer – weight reduction is one of the key components of the transformation. The initial ways to reduce mass are obvious – toss the rear seats, use lighter wheels, ditch the AC compressor and plumbing, etc. But dig a little deeper and you’ll find another weight-adding feature of most any street car – sound deadening.

Despite some of the rotary engine’s drawbacks such as having a low thermal efficiency, poor emissions and burning oil by design, it has still found its niche and is respected for being competitive in various types of racing. In the motorsports world, the rotary engine has seen some serious power. With some boosted rotary Mazda’s making over 700 horsepower at the wheels, a skilled tuner with a deep understanding of the rotary engine design is required.

If you are looking to get the most displacement out of any engine combination you may not know the benefits of aftermarket cylinder sleeves and big bore kits. There is an entire range of sleeve options and material compositions available at your fingertips that can beef up any block. With the help of this Real Street Performance YouTube video, we highlight the different types of aftermarket piston sleeves and their uses.

Valve springs operate in an extremely violent environment. Not only are they required to perform, but they also need to perform for extended periods of time. Camshaft profiles have become increasingly aggressive as the never-ending search for more performance advances. As a result, the valve spring has seen monumental advances in recent years.