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...
The How and Why of NASA’s New Super Touring Tire Measurement System
The new Super Touring rules regarding section width came about because NASA tech inspectors were finding numerous tires — not just one brand or...
Installing the New Spec E30 Ground Control Coilover Kit
I enjoy upgrades to anything. Some of the most rewarding experiences were the little details that just pulled the whole package together, the icing...
Upgrading Brake Hoses to Braided Stainless Steel
Well, the ultimate dash light machine had stopped breaking long enough for me to consider some upgrades to it. Well, that’s not true, the...
Reducing Engine Friction
Here are a couple of statistics that will blow your mind. Up to Eighty percent of the friction in a reciprocating piston engine stems...
Injector Parts – Bin Tuning
Some NASA racing classes mandate you use certain stock OEM parts on your racecar. Any solid racing mechanic can tell you not all stock...
Spec E30 Adopts a New Ground Control Spring Package
My first exposure to Spec E30 came in 2007 when I was asked to be race director at the Championships event in Mid-Ohio. There...
Reducing Rotating Mass – Lightweight Flywheels and Clutches Unleash More Power
Flywheels are necessary on piston engines because they preserve the momentum from one combustion stroke to the next. Early engines were so inefficient they...
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...
Project Spec E30 – Part IV: Building a Roll Cage
The NASA Club Codes and Regulations dictate the materials, size and layout of a proper roll cage, so we won’t delve into the CCR...
