World’s First Twin Turbo Demon 170
This Demon 170 loses the supercharger whine but gains a couple hundred horsepower thanks to a pair of 64 mm Hellion turbos.
The Demon 170 is a remarkable car. It is not only capable of making over 1,000 horsepower, but it marks the end of the line for Dodge V8-powered performance cars. Because of this, it has been extremely difficult to get your hands on a Demon 170. The few that are for sale on the secondary market are going for between $100K and $200K over MSRP. Yet somehow the folks at 3 Demons Performance managed to get their hands on FOUR of them. What do you do when you have that many Demon 170s? Well, how about building the world’s first twin turbo Demon 170? Any car could use more power, right?
That is exactly what 3 Demons Performance decided to do. They teamed up with Hellion Turbo and swapped out the stock supercharger for a pair of 64 mm Hellion turbos. The process and the results were documented in a video recently posted on the 3 Demons Performance YouTube channel. Was the project worth the effort? Are the results what you would expect? Do you still have questions? Let’s discuss.
Stock Demon 170
The intro of the video starts with one of the guys from 3 Demons Performance stating that he wants Go Mango to be the fastest Demon 170 around. With that goal in mind, the car is set to undergo a transformation. But first, a baseline needs to be established. The car is taken to the dyno, and it puts down 923 horsepower to the rear wheels. Let’s not gloss over that. A stock Dodge is putting out 923 horsepower to the wheels. Madness. Well, actually the true madness is that is not powerful enough. It is time to go twin turbo.
Turbo Kit
Once the stock supercharger was removed it was weighed and it tipped the scales at 114 pounds. The new intake replacing it comes in at just 37 pounds. There are other components in the turbo kit to be installed, however there is going to be a significant weight savings with the twin turbo setup. After everything is bolted up it is time to return to the dyno. The Demon 170 is still basically stock outside of swapping the power-adders. The twin turbo now puts down an astounding 1,275 horsepower to the rear wheels.
Open Questions
The claimed horsepower gain is impressive but there are a couple of questions that remain. First, is it worth giving up that sweet supercharger whine? That is the defining characteristic of the car, and it is up to you to decide if the power is worth losing that sound. The remaining questions are around the claimed results. When the car was on the dyno what fuel was used each time? That is not addressed in the video. Also, for the stock pull we are shown the dyno graphs. For the twin turbo dyno pull we are just told what the results were without being shown anything.
And finally, some of the math doesn’t seem to add up. The guy from Hellion Turbo said the stock car made 923 horsepower. Then after the twin turbo pull, he claims the car made an additional 120 to 140 horsepower. That would be roughly 1,060 horsepower to the wheels. But he then says that with the twin turbos the car is making 1,275 rear wheel horsepower. Where did that extra 200 horsepower come from? Hopefully that gets clarified. In any event, having the world’s first twin turbo Demon 170 is quite an accomplishment, and we would love to see what it can do on the track.
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