MaXpeedingRods Conrods: https://www.maxpeedingrods.com/category/h-beam-connecting-rods.html?tracking=D4A Coupon code: D4A—get 15% discount for all orders Tools for measuring: 0-150MM 0.01mm/0.0004 Inch Outside Micrometer set https://ban.ggood.vip/WVod​ 50mm-160mm 0.01mm Dial Bore Gauge http://bit.ly/36jYWQI​ 35mm-50mm Dial Bore Gauge kit https://ban.ggood.vip/WVoz​ How to zero micrometers and dial bore gauges: https://www.youtube.com/watch?v=1vejKSxzGC8 The music: https://www.youtube.com/watch?v=qtlHWvHV4BE In today's video we're doing a precision measurement of the tolerances in the rod bore of the MaXpeedingRods connecting rods. We're doing the measurement to see whether the rods abide by generally accepted machining standards and tolerances before installing them into my turbo 4afe engine build. On their website MaXpeedingRods claim that the rods are honed to a 0.0001mm tolerance, unfortunately this is likely a typo as these types of tolerances are pretty much impossible to achieve on a mass produced aftermarket or OEM connecting rod. Instead I'll be using a dial bore gauge to check the rods at multiple point to see whether they have out of round and taper outside of the generally accepted 0.0005 inch or 0.013mm of tolerance. After measuring all of the MaXpeedingRods connecting rods the verdict is that they pass inspection and are within 0.010 of tolerance which is pretty good considering their price point and the fact that they undercut comparable rods in price yet performed no worse when it comes to tolerances (from my experience measuring and seeing a few dozen enthusiast rod options for different engines measured by professional machinists at least). A special thank you to my patrons: Daniel Peter Della Flora Daniel Morgan William Richard Caldwell Pepe Brian Durning Andrew Ruud Brian Alvarez Holset90 D4A merch: teespring.com/en-GB/d4a-merch​ Patreon: https://www.patreon.com/d4a 00:00 Methodology 03:28 Measurement 10:04 Results #d4a #projectunderdog