bmw s85 dyno performance analysis & dyno testing results
The BMW S85, a legendary V8 powerhouse, delivers exhilarating performance—now backed by precise dyno testing to reveal its true horsepower and torque potential.
Insights from BMW S85 Dyno Testing
Advanced dyno testing of the BMW S85 reveals its peak power output and torque delivery across the rev range, offering engineers and enthusiasts a clear view of real-world performance. With metered acceleration and responsiveness, the S85’s dyno data highlights its dominance in the V8 segment, supported by calibrated engine management and high-revving capability.
Key Performance Metrics from Dyno Analysis
Dyno analysis of the BMW S85 shows a peak output of approximately 493 horsepower at 7,000 RPM and maximum torque of 516 lb-ft near idle, delivering razor-sharp acceleration. The engine’s broad torque curve ensures strong low-end grunt and crisp midrange response, making it ideal for both track performance and daily driving.
Optimizing the S85: Tuning and Dyno Validation
Professional dyno validation enables precise tuning adjustments—optimizing fuel maps, ignition timing, and air-fuel ratios. This process ensures reliability while maximizing power, transforming factory performance into a tailored driving experience that balances peak output with drivability and longevity.
Harness the full potential of the BMW S85 through expert dyno analysis and performance tuning. Whether for track days or daily excellence, understanding its dyno profile empowers owners to make informed upgrades. Discover how precision engineering and data-driven tuning elevate the S85’s legendary status—start your journey with confidence today.
In this entry, we hit the dyno and tune the S85-EVO. I establish fundamental dyno knowledge, set our hypotheses and provide answers based on our experiments and in. VS Motor is a engine builder and tuner in Trøgstad, Norway.
The company recently tuned Odd Gunnar Kjøniksen's twin-turbo BMW S85B50 V10 on their dyno. The engine features two Precision 6062 Gen2 turbochargers and MoTeC M150 ECU. Running on Sunoco E85R fuel, it made 917 hp and 988 Nm (728 lb-ft) on 0.75 bar (10.8.
Some of you may have seen my build sheet of my 5.8L stroker build And have inquired about dyno numbers. I did a dyno session at EAS in SoCal last week and here are the numbers, 550 WHP 380 WTORQUE Folks can talk about this and that stroker, but the until you run the numbers it's all BS. With.
Wheel/tire size and weight will also impact chassis dyno results Weather/Conditions - Temperature, humidity, altitude, and air density all impact engine performance. CarBahn.com (S85 motor shown is our 5.8L stroker V10 in race trim with dry sump and VANOS delete, making 720 horsepower)To about our 620 horsepowe. The Dinan Engine department just finished development of a custom BMW S85 engine that is found in the BMW M5 (E60) and BMW M6 (E63/4).
Dinan bored and stroked the BMW 5L engine up to 5.8L then installed performance cams, dry sump oil system and a racing exhaust. A custom software tune was written and when run on race gas (98) produced 720 hp @ 8300 RPM and 497 lb-ft @ 6900 RPM! Designed for. Here's a short video of a custom-built DINAN S85 V10 engine at full song.
This is the engine you'd find in an E60 M5 or E63/64 M6 but DINAN has taken it several steps further as the 5.0 is bored and stroked to 5.8L, performance cams added, dry sump and race exhaust with a custom tune. Watch this BMW S85 V10 Crank Out 720 Naturally Aspirated Horsepower on the engine dyno. This thing screams and it is a stroker!
S85-EVO Program Swipe right for info. I have documented dyno performance gains and the variables that come into play. Peak power is achieved +/- 700 RPM over original.
To do so, we use a lightened, uprated valvetrain. Higher rev limits enable shorter gearing while retaining the original top speed. Here are the results so far for our non-intercooled VT1 version of our upcoming S85 SC kit.
Final results may vary slightly as production spec hardware/software is not yet 100% finalized. Car: 2006 E60 M5, 100% stock except for SC kit Fuel: 93AKI Boost pressure: ~6PSI SC unit: Vortech V3Si.