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....
Shielding Cold Air Intakes to Maintain Power Levels
If you do a deep dive on the Internet, the rule of thumb for ambient temperatures and horsepower figures on a V8 engine is...
As Complete As Possible: How To Do An MX-5 2.5 Swap
There’s a fair amount of content on the web about swapping a 2.5-liter engine into an NC chassis MX-5, which comes from the factory...
The Honda Challenge: Swapping an Engine in One Night
If you’ve been going to the track for any length of time, you likely have witnessed an overnight paddock engine swap. Intense competitors, ready...
Draining a Spec Miata Fuel Tank to Minimize Weight
Anyone who races a Spec Miata is familiar with the Advanced Autosports adjustable fuel pressure regulator kit. I have had one on my car...
How to Perform an Engine Compression Test
Testing an engine for compression in the cylinders often yields information you might want to have on hand when buying or selling a racecar....
Cooling System Facts and Upgrades
As the name suggests, an internal combustion engine creates heat. The enormous potential energy from a few droplets of gasoline compressed and mixed with...
Flow Testing and Machining Spec Miata Cylinder Heads
Everyone in Spec Miata knows that the 2015 rule set underwent some changes in the offseason. The rule changes themselves weren’t major, but the...
Replacing a Miata Fuel Pump Sock
We all have read time and again that oil is the lifeblood of an engine, but without fuel, the engine doesn’t run, and if...
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...
