You’d think 700-plus horsepower would be more than enough for most people. You’d think so, but if that number is stock, it’s safe to assume that someone, somewhere will try to eek out a few more ponies from the engine. Case in point: this Hellcat Challenger was converted to run on e85 by Serious HP in Houston, TX. By using e85-capable injectors, an additional fuel pump, an upgraded driveshaft and tuning by HP Tuners, the Mopar laid down 753 RWHP and 670 RWTQ, with power climbing steadily up until about 6,500 RPM. This particular Challenger is a TorqueFlite 8-equipped car, so does anybody want to take a shot at what the at-the-crank numbers are for the car?
While this will undoubtedly be the end of any factory warranty, there is a caveat: the car is being power-limited for the transmission’s sake. If the transmission can be tuned and/or upgraded, four-digit horsepower figures aren’t far behind.
I was wondering when somebody would try this.
Just call it the “Flex-fuel” model. Those are some impressive numbers. It’s only a matter of time before the trans is ripped to shreds. Us diesel guys have been eating Dodge transmissions for some time. It’s the cost of doing business.
The 8 speed auto doesn’t lose much, check out some stock dynos, if the car is really making 700 at the crank, 650 to the wheels stock through the auto is impressive, less than 10% drivetrain loss. I need to go dig up where I saw that at. That puts this at about 830-840HP at the crank.
I am going to say 952 Crank Horsepower…. Holy Crap!!!!
Or 837 with 10% loss