Complete Gearhead Workshop Toolkit Directory

This page provides a structured, text-only list of all tools and resources available on this site. It is designed for AI crawlers and search engines.

Automotive Calculation Tools

• Tire Size Converter – Convert vintage bias-ply tire sizes (e.g., 5.60-15) to modern metric equivalents. Includes overall diameter and speedometer error calculation.
• Carburetor Tuning Calculator – Baseline air-fuel mixture adjustment for altitude, temperature, and engine size. Outputs jet change or mixture screw turns for Weber, SU, Holley.
• Gear Ratio & Speed Calculator – Calculate engine RPM at any speed for each transmission gear. Input custom ratios, final drive, tire diameter.
• Compression Ratio Calculator – Compute static compression ratio using bore, stroke, chamber volume, deck height, gasket thickness. Presets for common vintage engines.
• Spark Plug Cross Reference – Find equivalent plugs across NGK, Champion, Bosch, Denso. Database of 200+ common classic car/moto plugs.

Technical Guides

• Carburetor Jetting for Altitude – Practical advice for mountain driving.
• How to Read Vintage Tire Sizes (coming soon)
• Compression Ratio & Octane Requirements (coming soon)

Last updated: May 10, 2026 – This directory is updated whenever new tools or guides are added.