Understanding Oil Coolers

When engine output rises beyond a certain threshold per liter of displacement, an oil cooler becomes more important, critical even. There is a lot...

Small Details

Clearances inside a fuel injector are measured in ten-thousandths of an inch, and the duration they open and close is measured in milliseconds. Injectors...

Head Gasket Technology – Exploring and Addressing Cylinder Head Lift

The quick-and-dirty description of an engine’s internal combustion process is suck, squeeze, bang, blow. But that’s not entirely accurate. In reality, it’s suck, squeeze,...

Putting Some Thunder in the Tundra – Adding a cold air intake and aftermarket...

We all spend countless hours prepping our racecars. However, many of us have another vehicle, which gets us to work, the local hardware store,...

Straightened Six – Refreshing a cylinder head on a Spec E30

When it comes to affordability, Spec E30 offers some of the most cost-efficient racing on track today, especially if you can do a lot...

How Fuel Pressure Regulators Work

The latent energy content of gasoline is fixed — 124,000 BTU — and the amount of horsepower you can make depends on how much...

Cold-Air Intakes: How and Why They Work

Whether we’re talking about a street car, a racecar or even a tow vehicle, one of the easiest-to-install and most cost-effective performance parts we...

Eight Tricks To Make Working A Cooling System Easier

If you like to play with cars, if you put your car on a racetrack for HPDE and especially if you race cars, you...

Octane vs. Horsepower – Separating fact from myth in the debate over which fuel...

So many times I’ve heard different opinions from various experts on which octane fuel makes the most power. According to Spec E30 rules, “Permitted...

Engine Cooling: A Balancing Act

In racing, the prevailing wisdom for enhancing a car’s cooling system was simple. The more rows you can put in a radiator, the better....

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