During one of our never-ending technical discussions, Jim Grubbs at Jim Grubbs Motorsports (JGM) suggested that we take a look at the flow difference between 30- and 45-degree valve seats. While ...
When it comes to dangerous garage tools, few inspire more wide‑eyed respect and sweaty palms than the angle grinder. Imagine a compact powerhead spinning at up to 11,000 rpm with sparks flying in all ...