Hennessey Performance attaches a McLaren Senna at the Dyno to determine how much horsepower or torque it can deliver to the wheels.
We have written before about Hennessey running dyno tests on McLaren vehicles. We are often impressed by the very low drivetrain losses when it comes factory rated horsepower in comparison to wheel horsepower.
This could be because the manufacturer has cleverly underrated their cars. However, we find ourselves clicking every Hennessey-McLaren video that we can. This video was worth the wait. Finally, gets to see the McLaren Senna on Hennessey’s dyno.
As it pulls its dyno, the entire car seems to vibrate with power. The car is secured with ratchet straps and looks like a wild animal trying desperately to escape.
We love the Hennessey muscle cars, but there is nothing more frightening than a top of-the-line hypercar, especially one in sinister black like this Senna.
The Senna produces 724.13 horsepower at 7,300 RPM. This is a loss of about eight percent in drivetrain, which is roughly half of what car owners should expect from their vehicles when they are pulled on a dyno.
The torque was measured at 627.95 Lb/ft when the wheels were rotated at 5,430 RPM. This is more than the factory rating at 590 lb/ft @ 5,500 RPM. This supports our suspicion that McLaren may be lying about their horsepower and torque numbers.
These are impressive numbers for McLaren Senna. Even more exciting is the fact that Hennessey now has the McLaren Senna in his hands. The already impressive hypercar will be even more amazing after they have tuned it.
The Hennessey tune could include a software update and exhaust work to make the car’s breathing easier. Hennessey is the only person who can improve on perfection.