"Wheel horsepower" refers to the amount of power or energy produced by an engine that actually reaches the wheels of a vehicle, after accounting for any power loss in the transmission, drivetrain, and other mechanical components. It represents the usable power that propels the vehicle forward.
Full definition
Hennessey Performance Engineering recently decided to find out how much the 2015 Z06 convertible's engine loses between crank horsepower and
rear wheel horsepower.
A Borla exhaust is also optional, which provides a 28 percent flow improvement and up to 10 rear -
wheel horsepower on the standard 5.3 - liter V - 8 engine.
Packard Performance's YXZ roots - style blower kit adds 50 - plus
wheel horsepower with an install that won't take you a full day.
If a vehicle has a known crank or
wheel horsepower rating, is there a method that can reasonably estimate what the other horsepower value should be?
Just as the Accord V6 coupe puts down
wheel horsepower figures suspiciously close to the claimed crank output, the Type R feels far quicker than the specs would lead you to believe.
However, anybody can purchase the Alpha 6, Alpha 9, Alpha 10, Alpha 12, Alpha 14 and Alpha 16 packages; each respectively with approximately 600, 900, 1000, 1200, 1,400 and 1,600
wheel horsepower when installed and tuned.
What's really impressive though, as one YouTube commenter points out, is that the 2017 ZL1's 567
wheel horsepower nearly matches the old ZL1's 580 crank horsepower.
Rear wheel horsepower is measured by the dyno and you can generally count on a 15 % loss of horsepower from the engine to the rear wheels.
Barking through Rewarder headers and dual MagnaFlow 2.5 - inch pipes, the combo lays down 463 rear -
wheel horsepower on the chassis dyno.
There's not really any such thing as «crank horsepower» and «
wheel horsepower» in any sort of definite sense.
For example, if a vehicle has 300
wheel horsepower, is there a way to estimate its crank horsepower?
The fundamental problem is that crank and
wheel horsepower aren't fundamentally related to actual power or to one another in predictable ways.
If, instead, your comment is arguing that
wheel horsepower, crank horsepower, and «actual power» (what is «actual power» anyway?)
Wheel horsepower is generally the car's power, measured at the drive wheels.
With the boost turned all the way up, the truck is capable of an insane 2000 all -
wheel horsepower.
The company tested the setup, yielding a staggering 632
wheel horsepower and since have tweaked the turbos to offer customers the chance to go over 700 wheel horsepower with the BMW M3 / M4 S55 engine.
A supercharger from East Coast Supercharging, with 14 psi of boost, upped the Stingray to a whopping 890 rear -
wheel horsepower and 743 lb - ft of torque.
Those upgrades elevated the Z06's performance to 631 rear
wheel horsepower.
Underneath the hood of this rather stock looking F - 150 is a 3.7 L V - 6 that has been fitted with a belt driven supercharger, feeding to a air - to - air intercooler and using methanol injection to produce 307 rear
wheel horsepower!
VF Engineering Hex Tune Adding 40 - 50
Wheel Horsepower and 25 - 30 Wheel Torque!!!
The car is currently tuned and has 427 all -
wheel horsepower.
Additionally, IND did one run in 6th gear in full RWD / Sport Plus mode, and hit the speed limiter at about 152mph / 244kph, power maxing out at 593
wheel horsepower and 578 lb / ft torque.
Thanks to some chili Illinois weather the morning of the dyno test, the BMW M5 posted the best run in 5th gear / AWD / Sport Plus — a surprising 625
wheel horsepower and 608 lb / ft torque.
In doing so, Stillen was able to achieve gains between 25 to 30 rear -
wheel horsepower.