What These Videos Demonstrate
This series documents approximately 40 drag strip passes, all run with 100% methanol injection (VP M1, ~1500cc) intentionally integrated as part of the overall fueling strategy, not as an auxiliary add-on. Every change was supported by extensive data logging and a tuner who explicitly accepts and calibrates for methanol as fuel. None of these runs were blind, improvised, or dependent on knock correction to find power.
The base strategy was deliberately conservative and repeatable. With hybrid turbos, boost was capped at ~19 psi, ignition timing held around 19 degrees, and knock sensors were not allowed to add timing. Shift points were kept in the 6000–6200 rpm range, and the car retained the 2.77 final drive ratio. This operating envelope was chosen to evaluate airflow and mechanical limits, not to chase peak numbers.
Starting from a completely stock turbo, intercooler, HPFP, LPFP, injectors, engine, and transmission, the car progressed from 12.3s to 11.83 @116 mph on 93 octane + methanol. Stock HPFP and LPFP were pushed to 11.36 @122 mph, and stock injectors, engine, and transmission were taken to 11.06
@123 mph, all while maintaining the same conservative boost, timing, and shift strategy.
The critical observation is that ~123 mph trap speeds appeared early, first showing up around an 11.39-second pass, and did not meaningfully increase thereafter, even as ET continued to improve. This confirms the car was not fuel-limited. It was turbine-limited. The compressor had remaining headroom, but the stock turbine housing became the choke point, driving exhaust backpressure up, collapsing VE, and limiting high-RPM airflow.
As a result, gains beyond that point came primarily from launch efficiency and first-half acceleration, while the back half consistently fell off from the 1/8-mile to the finish. Upgrading to an XDI35 HPFP and DW300C LPFP, and switching to E40 + 100% methanol, improved consistency and safety, but did not materially increase trap speed, further reinforcing that turbine choke — not fuel or timing — was the limiting factor.
Conclusion
These results demonstrate that when a platform is turbine-choked, adding more fuel, more octane, or additional camshaft duration before addressing turbine-side airflow is simply illogical. Those changes cannot overcome exhaust restriction, and in many cases only increase drive pressure, thermal stress, and diminishing returns.
Methanol did not artificially inflate top-end power — it stabilized combustion, reduced thermal stress, and allowed the car to safely reach the true mechanical limits of the stock turbine setup. This is proof of concept, documented with video, slips, and data, showing exactly where the platform stops responding — and why the correct next step was turbine-side airflow, not more fuel or cams.