Bottom’s Up – Rebuilding a BMW M20 short block for your Spec E30
Whether you have a problem with your engine or just want to refresh the one in your Spec E30, having a tight, reliable power...
The Art of Scavenging – Myths and methods of getting burned gases out of...
For the longest time, the prevailing wisdom in the paddock with regard to exhaust was the bigger the pipe, the better. Bigger pipes let...
Invisible Edge-Millers Oils’ nanotechnology releases more power by reducing friction and heat
Nanotechnology has become a field unto itself over the last couple of decades, so it likely was only a matter of time before it...
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...
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...
Increasing Octane – Getting the right octane rating for your track car
A lot of NASA HPDE drivers drive their cars to and from the track, and of those, there’s probably a decent amount who change...
Leaning the Mixture – Installing an adjustable fuel pressure regulator and an air-fuel ratio...
Horsepower doesn’t come cheaply or easily in Spec Miata. Sometimes it doesn’t come at all. First, the engines are tiny, measuring either 1.6 or...
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...
Fuel Supply and Demand
Imagine screaming down the front straight at your favorite track, when suddenly your engine begins to bog and sputter. You look over at the...
HPDE46 – Overcoming Deferred Maintenance on a ZHP E46 to Make It “Trackable”
The idea behind finding a new-to-me car was simple. I wanted a fun daily driver I could take to the track every now and...
