[WildBillyT]

Originally Posted by DaSkinnyGuy

K&N dyno says the Hellcat engine is underrated and makes at the crank 722hp,672tq ( advertised 707hp,650tq )

http://blogs.motortrend.com/1408_dyn...e_rollers.html

Assuming a 12-percent drivetrain loss (automatics are getting more efficient each year), that means the Hellcat puts out about 722 hp at the crank.



That is operating on an assumption. I wouldn't doubt it puts out a few HP more than rated though.