Street Machine’s latest episode of Carnage features the long-awaited moment when the ‘Supermang’ VN Berlina, powered by a troublesome supercharged 4.2-litre stroker L67 engine, undergoes a dyno test. The journey leading up to this test has been fraught with challenges for Scotty, the man behind the project.
Initial setbacks included a clearance issue with the rotating assembly, necessitating a new camshaft to harmonize with the pistons and rods. Subsequently, a critical discovery was made when the engine exhibited no oil pressure due to an incorrectly installed oil pressure relief valve. Fortunately, no significant damage had occurred, but the engine had to be removed for rectification.
After resolving these issues, the rebuilt engine was reinstalled in the car with modifications such as a smaller camshaft than the previous 3.8-litre L67 version, the removal of the water-to-air intercooler, and the adoption of a larger top pulley. The changes were aimed at simplifying street use and improving the blower’s efficiency by reducing heat generation and enhancing power output.
Scotty had ambitious goals of achieving 300rwhp with the upgraded engine. While the final power figure remains undisclosed, the engine delivered over 700Nm of torque at the hubs, showcasing its impressive performance. The episode captures the culmination of efforts and invites viewers to weigh in on whether the increased engine capacity justified the extensive work undertaken.
Kian Heagney, a contributor to Street Machine, brings a wealth of automotive expertise to the table, having honed his skills in racing and car maintenance during his formative years. His journalistic background adds depth to his coverage of the automotive industry, making him a valuable asset to the team.
As viewers eagerly await the power results of the 4.2-litre stroker V6, Street Machine’s Carnage series continues to captivate audiences with its blend of technical insights and real-world challenges faced by automotive enthusiasts. The meticulous attention to detail and pursuit of performance enhancements underscore the dedication of individuals like Scotty in pushing the boundaries of custom car building.
The episode serves as a testament to the perseverance and ingenuity required in the world of custom car modifications, where every obstacle presents an opportunity for innovation and improvement. Street Machine’s Carnage series stands as a beacon for enthusiasts seeking inspiration and knowledge in the realm of high-performance street machines.
With each dyno run and modification, the ‘Supermang’ VN Berlina project exemplifies the spirit of innovation and determination that defines the street machine community. As the engine roars to life and delivers impressive performance figures, it reaffirms the passion and commitment shared by enthusiasts and builders alike in their pursuit of automotive excellence.
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