【F1幻の傑作】いすゞV12エンジン驚異の技術力！ロータス極秘テストでセナに迫った12900rpmの真実

In August 1991, a legendary piece of JDM motorsport history took place at Silverstone: Isuzu’s secret F1 V12 engine (P799W) test with Team Lotus. Despite Isuzu having zero prior F1 racing experience, the engine started on the very first try and completed 48 flawless laps at 12,900 RPM. This incredible display of Japanese engineering and reliability left Team Lotus engineers and driver Johnny Herbert absolutely stunned. Running 80kg overweight on old tires and standard fuel, the Isuzu-powered Lotus 102B still clocked a top speed of 273 km/h—nearly matching Ayrton Senna’s McLaren-Honda (276 km/h) on the exact same day. While heavyweights like Porsche and Peugeot struggled heavily with engine blows and overheating during their early F1 development, why did Isuzu get it so right from day one? In this video, we deep dive into the technical specs, compare it with Honda and Yamaha V12s, explore the mystery of the 75-degree bank angle, and uncover why this masterpiece never made it to the grid. If you love F1 history and legendary Japanese engineering, please subscribe and hit the like button! 【Timestamps】 00:00 The Overview of Isuzu's Secret V12 F1 Test 01:06 48 Laps of Incredible Reliability at Silverstone 02:18 Defying the Weight Handicap: Top Speed Comparison with Senna 04:53 Johnny Herbert’s High Praise & Driving Impressions 05:29 Lotus Team Boss Blown Away by Japanese Engineers 07:36 Technical Breakdown: Isuzu P799W Dimensions & Weight 08:42 V12 Tech Comparison: Honda vs. Yamaha vs. Isuzu (The 75° Bank Angle) 11:12 Isuzu's Triumph vs. Porsche and Peugeot’s F1 Failures 12:23 Why Did the Isuzu F1 Project Ultimately Fail? #F1 #Formula1 #IsuzuV12 #TeamLotus #AyrtonSenna #F1History #JDM #Motorsport