Supermang Stroker V6 Roars: 5 Epic Moments from Carnage

Supermang stroker V6 roared to life in the latest Carnage episode, released April 16, 2025, as Scotty McDonald finally fired up the fan-favorite VN Berlina’s new 4.2-litre L67 stroker V6 at Maxx Performance dyno in Melbourne, per Street Machine. After months of setbacks—clearance issues, stubborn screws, and camshaft tweaks—this episode marked a triumphant milestone, with the engine hitting 300rwhp on its first run, per YouTube. The journey to get Supermang running again, aiming for a 12-second quarter-mile, captivated car enthusiasts, with X posts like @StreetMachineOz buzzing with excitement. What made this episode a must-watch, and what’s next for the VN? Let’s break down the build, the run, and the future of this iconic project.

Table of Contents

• The Supermang Stroker V6 Journey Begins
• Overcoming Build Challenges
• The First Fire-Up: Dyno Day Drama
• Why the 4.2-Litre Stroker V6 Matters
• What’s Next for Supermang
• Conclusion

The Supermang Stroker V6 Journey Begins

The Carnage crew, led by Scotty, revived Project Supermang—a 1990 VN Berlina bought for $4,000 with 117,000km—in 2020, swapping its stock Buick V6 for a supercharged L67 3.8-litre, per Street Machine. Named for its “mang mang mang” rev-limiter sound, Supermang became a fan favorite, hitting a 12.53-second quarter-mile at Heathcote Park Raceway, per WhichCar. In January 2025, Scotty announced plans for a 4.2-litre stroker V6, aiming to boost power and chase a mid-12-second PB, per YouTube.

This episode, the culmination of a year-long build, saw the new engine—built with Dandy Engines’ short block and MACE Engineering’s cam—finally installed, per Street Machine. The goal? Debut at the Optima Ultimate Street Car 2025 at Calder Park, a deadline Scotty met with grit, per YouTube. The episode’s raw energy, from wrenching to dyno pulls, hooked viewers, per X.

Overcoming Build Challenges

The stroker build wasn’t smooth. In January, Scotty hit roadblocks dismantling the old 3.8-litre L67 for parts, with a stubborn oil pump screw causing delays, per Street Machine. By February, a clearance issue—conrod bolts hitting the camshaft—forced the engine out of the VN, per YouTube. MACE Engineering and Crow Cams crafted a custom 605-spec cam with a reduced base circle, solving the issue, per Street Machine.

Scotty also cleaned components using Dandy Engines’ parts washers, ensuring the stroker’s fresh start, per Street Machine. Kemppi’s MIG and TIG welders aided custom tweaks, like exhaust mods, per YouTube. These hurdles, detailed in prior episodes, made the April 16 fire-up a hard-won victory, with Scotty’s problem-solving shining through, per WhichCar.

The First Fire-Up: Dyno Day Drama

The episode’s climax came at Maxx Performance, where Supermang’s 4.2-litre stroker V6 roared for the first time, per Street Machine. Scotty, backed by VPW Australia, bolted on the heads, sump, and Eaton M90 supercharger, tuned with a Haltech Platinum Sport GM ECU for E85, per YouTube. The engine, paired with a manualized Turbo 700 transmission, hit 300rwhp on its first pull—a 20rwhp gain over the old 3.8-litre, per Street Machine.

A minor fuel pressure tweak, using a Walbro 460 pump from Raceworks, smoothed out the run, per WhichCar. The dyno session, while short of the 350rwhp Scotty hoped for, proved the stroker’s potential, with room for tuning, per YouTube. Fans on X, like @WhichCar, praised the “throaty growl,” calling it a “beast reborn,” per X. The run set the stage for track testing, per Street Machine.

Why the 4.2-Litre Stroker V6 Matters

The 4.2-litre stroker V6 isn’t just about power—it’s about proving an underdog can shine. Unlike common LS or Barra swaps, Scotty chose the L67 for its affordability and modding potential, per Street Machine. The stroker, built with ARP rod bolts and a Crow Cams timing chain, boosts displacement for more torque, ideal for street and strip, per WhichCar.

Cost was a focus—Scotty detailed parts prices, keeping the build relatable for DIY enthusiasts, per Street Machine. The project also showcases Australian brands like MACE Engineering and VPW Australia, reinforcing local talent, per YouTube. For fans, Supermang’s journey proves passion trumps convention, per WhichCar. It’s a love letter to V6 purists, per Street Machine.

What’s Next for Supermang

With the stroker running, Scotty plans to hit Heathcote Park Raceway to chase a mid-12-second quarter-mile, per Street Machine. Future upgrades include a larger supercharger pulley for more boost and a water-to-air intercooler to lower intake temps, per YouTube. The diff, still a stock 3.08:1 BorgWarner, may get a gear change for better launches, per WhichCar.

Scotty also hinted at tuning the Haltech ECU for E85 to unlock more power, per Street Machine. The VN, fully street-legal, will return to events like the Holden Nationals, per YouTube. Fans can follow updates on Street Machine’s site, per Street Machine. For more on car builds, visit Street Machine, per Street Machine.

Conclusion

Supermang stroker V6’s first run in the April 16 Carnage episode was a triumph, with the VN Berlina’s 4.2-litre L67 hitting 300rwhp after a year of challenges, per Street Machine. From camshaft fixes to dyno pulls, Scotty’s grit—backed by MACE Engineering and VPW Australia—brought this beast to life, per YouTube. The episode, buzzing on X, celebrates the V6’s potential and Supermang’s underdog spirit, per X. As Scotty eyes the track, the VN’s next chapter promises more thrills, per WhichCar. Tune in, get inspired, and keep wrenching—Supermang’s just getting started, per Street Machine.

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