HPDE46 Replacing the Slave Cylinder Hose and Clutch Delay Valve
In stock form, the E46 BMW with a manual transmission has what’s called a clutch delay valve, which is essentially a step-down fitting in...
Beating Exhaust Heat
The factory downpipe from the manifold on NA and NB Mazda Miatas is wrapped with shielding and packed with insulation to keep the heat...
Tech Matters: Back to Back
Toyo Tires offers comparison test drives in cars with its new R888R and its outgoing R888.
There’s a special feeling waking up knowing that in...
The Red Zed – Part 3: Fast and Phenomenally Fun
The transformation of the Red Zed from a basic 2007 Nissan Nismo 350Z to proper racecar is almost complete. It has gone from road...
Installing a Fire System
When caveman invented fire, it changed the world we live in forever. Fire forges steel. Fire creates the very racecars we NASA members enjoy...
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...
Two-Inch Revolution: The Motorsports Industry is Shifting to 2-inch Harnesses for Enhanced Safety
For the longest time, the motorsports industry was fairly fixed on the use of 3-inch belts for driver safety harnesses. The prevailing wisdom was...
Weight Matters – Corner Weighting Your Car Properly Yields Better Handling and Faster Lap...
The vertical loads on your tires have a huge influence on how fast your car can go around the track, and how it responds...
Making Old New Again – Recertifying Safety Equipment Can Be More Cost Effective Than...
Safety equipment does expire over time. That applies to window nets, seats and harnesses, and other items. Recently my DefNder head and neck restraint...
Spec MX5 vs Spec Miata
Typically, two of the costs an ambitious driver must contend with when moving up into a faster vehicle is greater complexity and a more...