Bracing a Miata Differential
If you want to be competitive in Spec Miata, you need the 4.30:1 Torsen or Mazda Motorsports differential. Most racers simply find a factory...
Prepping a Nissan Z for ST4 Competition
If the popular models from BMW and Honda represent the proven path for the pragmatic, Nissan’s venerable 350Z might be the pick for the...
How to Choose a Clutch for Street, Track Days, Time Trial and Racing
The process of taking a production car and converting it for use in racing or high-performance street driving, or perhaps something that can do...
HPDE46: How to Replace Shifter Bushings
In all candor, just going in and replacing the shifter bushings is too much work for the rewards it yields. Now that the job...
Clutch Player – Installing a clutch on a Spec Miata engine the easy way
Depending on where you look, the two men credited with inventing the modern automotive clutch more than 120 years ago were two Frenchmen, Louis-Rene...
HPDE46: Replacing a Driveshaft Coupler
The moment you buy an older BMW, you must become familiar with a lexicon that includes such terms as DISA valve, DME, Bi-Xenon, SAP,...
LS-Swapping a Ligier LMP3 Prototype
A C6 ZR1 isn’t an ideal beginner’s car, and NASA Mid-Atlantic driver Clayton Eley would admit as much. “I was probably getting in over...
Reinventing the Clutch
For all practical purposes, the automotive clutch that has been in use for much of the last century was conceived by the Borg &...
Cog Choice – How to Choose the Right Gear Ratios
Gears are expensive and hard to get to, so we are all motivated to get the right transmission and final drive gear ratios in...
Installing a Clutch and Light Flywheel in a 2.5-Swap MX-5
Installing a new clutch while you swap a tired old engine out of the car is a good idea. It’s one of those “while...
