Sprung vs. Unsprung Weight: What It Means and Why Racers Care Dec 1, 2025 Introduction Every ounce on a car matters, but where that weight sits matters even more. Whether you're trying to shave lap times at Stafford or get better control off-road, knowing the difference bet... Read more
Oversteer vs. Understeer: What’s the Difference, and Why It Matters Dec 1, 2025 Introduction If you’ve ever pushed a car hard—on the track, in the dirt, or just on a twisty backroad—you’ve felt one of these two problems: The front end won’t turn The rear end wants to come around ... Read more
What’s a Panhard Bar, and Why Should You Care? Dec 1, 2025 Introduction You’ve probably heard someone at the track talk about “dialing in the rear end” or “tightening up entry.” Nine times out of ten, they’re messing with something like a panhard bar. Sounds ... Read more
A Better Way to Weigh Your Car Oct 22, 2025 A Better Way to Weigh Your Car Summary This guide explains a low-cost, practical method for weighing your car using simple tools. It’s based on the idea that corner-weight scales for race cars are exp... Read more
GRE6 Tech Insight: Understanding Clutch Operation and Common Problems Oct 22, 2025 Overview This document summarizes the key technical points from GRE6 on clutch systems, focusing on how clutches function, what causes grinding and hard shifting, and how to diagnose common clutch rel... Read more
GL4 and GL5 Lubrication Oils for Transmission Explained Oct 22, 2025 GL-4 vs GL-5 Gear Oils Explained Overview This guide summarizes the differences between GL-4 and GL-5 gear oils and clears up common misinformation about their use in manual transmissions. It is based... Read more
Hurst Shifter Guide Oct 22, 2025 Overview This guide covers disassembly, inspection, cleaning, and reassembly of classic manual transmission shifters, focusing on the Sparkomatic , Hurst Competition Plus , and other period shifters. ... Read more
Synchronizer Ring Tips Oct 22, 2025 Overview This guide summarizes key points on diagnosing and preventing stuck synchronizer rings in manual transmissions. It explains why the issue occurs, how to identify it, and the correct steps to ... Read more
What Tariffs Mean for Racing Parts, Cars, and You Sep 24, 2025 Tariff Updates on Steel, Aluminum, and Auto Parts: What It Means for Racers, Shops, and Customers The U.S. government is updating tariffs on steel, aluminum, and automotive parts. These changes affect... Read more
🔍 BEHIND THE LABEL: WHAT DO THOSE OIL CLAIMS ACTUALLY MEAN? Aug 26, 2025 Every bottle says "high performance" or has a checkered flag, but what does that actually tell you? Spoiler: not much. Here's how to read past the marketing and figure out what you're really buying fo... Read more
Torque Accuracy & Specifications for Titanium Fasteners May 28, 2025 Torque Accuracy & Specifications for Titanium Fasteners Understanding proper torque is critical to component longevity and safety in high-performance applications like motorsports. While screw threads... Read more
Sprint Car Tire Prep: Siping & Grooving Guide May 28, 2025 Sprint Car Tire Prep: Siping & Grooving Guide This guide is based on years of track experience—not gospel. Use it as a starting point, not a rulebook. What works best will depend on your car , track c... Read more