B58 Porting Masterclass | Hand Work, Theory, and HeadGames Burrs

In Part 1 of the B58 trilogy, Dave dives into the REAL work behind every CNC program—hand porting. Before a single line of geometry hits the Centroid, every BMW B58 head starts on the bench with burrs, sanders, and years of experience. We shape it. We size it. We find airflow. This episode shows the actual foundation of a CNC port: bowl sizing, short-side shaping, valve guide bias, throat percentages, and how the B58 responds to geometry changes. Featuring: – HeadGames carbide burrs (“The 3 Amigos”) – Bowl shaping theory – Short-side radius correction – Port wall cleanup – Throat percentage strategy – Why CNC is only as good as the hand port behind it PRESS THE EASY BUTTON FOR HOME PORTING OR PROS ALIKE. SAME BURRS AND CARTRIDGE ROLLS! My Go-To grinder for porting (not sanding) Makita GD0603 1/4" Compact Die Grinder https://amzn.to/4j4ayLK HeadGames HeadHoggers™ Burr Bundle & The 3 Amigos Burr Bundle https://headgamesmotorworks.com/products/burr-bundle-sale, https://headgamesmotorworks.com/products/the-three-amigos-burr-bundle HeadGames Pro Porting Package https://headgamesmotorworks.com/products/pro-porting-package-1 AC Motor Speed Controller 120V 15A Max Electronic Fan Speed Controller Variable Adjuster for Hydroponics Inline Duct Exhaust Ceiling Fans with 6' Long Cord https://amzn.to/4ayDWaJ 6” Slotted Mandrel 1/4” Shank & Body, Split Head Mandrel, Sanding Internal Holes, 1/4” Shank Diameter x 6” Overall Length, Pack of 1 https://amzn.to/4q0jHaG 2 Piece Porting Mandrel Set with 4” & 6” High Speed Steel Coarse Thread Extra Shank Length Cartridge and Spiral Roll Mandrels https://amzn.to/45bHJYb The gear we use to video all of our shenanigans - Canon EOS R8 Mirrorless Camera Body, Full‑Frame CMOS Sensor, 24.2 Megapixels, 4K 60p Video, Dual Pixel Autofocus II, Lightweight Camera for Content Creation, Photography and Vlogging, Black https://amzn.to/3KRrqsu NEEWER RGB2 LED Tube Light Stick with Metal Barndoor, Handle, Touch Bar/APP/2.4G Control, Rechargeable Magnetic Handheld RGB Video Light, 2500K-10000K CRI98+ Dimmable Photography Lighting, 18 Scenes https://amzn.to/4jkzwX7 SmallRig P96 LED Video Light, Portable Camera Lights, 96 LED Beads for Photography Video Lighting, Rechargeable 2200mAh CRI 95+ 2700-6500K w 3 Cold Shoe https://amzn.to/4jqe9nE Canon EOS R6 Mark II Mirrorless Camera (Body Only), Full-Frame Camera, 24.2 Megapixel CMOS Sensor, Photo and Video Capabilities, Black https://amzn.to/49hQH7a DJI Osmo Pocket 3 Creator Combo, Vlogging Cameras with 1'' CMOS, 4K/120fps Vlog Camera, 3-Axis Stabilization, Face/Object Tracking, Mic Included for Clear Sound, Digital Vlogging Camera for YouTube https://amzn.to/3YQiJlr Canon RF100mm F2.8 L Macro is USM Lens, Medium Telephoto Lens, Macro Lens, Compatible with EOS R Series Mirrorless Cameras, Black https://amzn.to/49xWaYO Canon RF85mm F1.4 L VCM https://amzn.to/4qsze2P Canon RF35mm F1.4 L VCM Lens https://amzn.to/4qBd2Uw DJI Mic 2 (2 TX + 1 RX + Charging Case), Wireless Lavalier Microphone, Intelligent Noise Cancelling, 32-bit Float Internal Recording, 820 ft.(250m) Range, Microphone for iPhone, Android, Camera https://amzn.to/4jlPIaS ULANZI MT-79 Extendable Tripod Aluminum, 81" Portable Adjustable Light Stand with 1/4" Screw, 360° Ball Head Camera Phone Tripod for Camera Video Light Smartphone, Lightweight for Travel https://amzn.to/4quYDsC What helps us stay awake and do all of this crazy cool stuff! Nespresso Capsules Vertuo, Double Espresso Chiaro, Medium Roast Espresso Coffee, 30-Count Coffee Pods, Brews 2.7oz. https://amzn.to/4qxcizC