997.1 Turbo E85 tuned by Protomotive results - Over 600 alll wheel horsepower on stock turbos
What you see below in the video is a 997.1 Porsche 911 Turbo tuned on E85 by Todd at Protomotive. Additional modifications to the car are a Europipe exhaust, 997.2 Turbo intercoolers, upgraded Sachs clutch (car is manual), upgraded fuel injectors, and BMC filters. The dyno used is a Mainline dyno from Australia which is considered a "heartbreaker" dyno. Todd Knighton estimates the Mainline reads roughly 15-17% lower than a Dynojet.
The Mainline read out 578 to all four wheels. Let's conservatively estimate this at the mid 600 wheel range on a Dynojet. Until the car is run on a Dynojet we do not know for sure but it is safe to say this is over 600 horsepower at the wheels on the stock turbos when using E85 ethanol fuel.
This is one of those times that it is important to understand how different dynos can read completely different numbers.