K20 Turbo Integra GS-R Hits Dyno: Can It Reach 500whp Without Failure?

After a full suspension and brake refresh, Speed Academy’s rusty 1994 Acura Integra GS-R—saved from the scrapheap by its patina—undergoes a radical transformation with a K-series engine swap. The project, supported by K-Tuned, aims to push the greasy, high-mileage K20 to 500 wheel horsepower using a Precision 6062 turbo and a maxed-out fuel system.

But 500whp isn’t just a target—it’s the threshold where stock K-series connecting rods start considering an early retirement. Will the build hit its goal before catastrophic failure? The team heads to the dyno to find out.

Pre-Dyno Prep: A Quick Facelift and Fabrication

With temperatures at 14°C (60°F), the team attempts a last-minute cosmetic refresh. A quick wash and polish reveal the car’s poor paint condition: the clear coat is gone on top surfaces, but polishing accidentally adds a forged-carbon-like sheen. A foam-brush paint dab job offers a deceptive improvement from a distance, though up close, the patchy results are undeniable.

Fabrication hurdles follow. The factory bumper reinforcement is removed to make room for a front-mount intercooler setup. Lacking fabrication skills, the team enlists Mike from GT Customs, who crafts stunning titanium intercooler piping and handles exhaust routing, including a valve-controlled cutout.

Final Touches and the Dyno Run

Back at the shop, the team installs the exhaust cutout, blow-off valve, and refills the cooling system. The car fires up—with the cutout open, it roars aggressively; closed, it’s surprisingly quiet. The difference is stark, not just in sound but in performance, as the open exhaust reduces backpressure.

The stage is set. The K20 turbo Integra GS-R, now armed with a Precision 6062 turbo and supporting mods, rolls onto the dyno. The question remains: Can it reach 500whp without blowing up first?

The results—captured in the video below—reveal whether the stock rods survive the attempt.