Joined
·
56 Posts
Can you tune a 707 horsepower 2016 Challenger Hellcat to reach 797 horsepower? If not, what did Dodge do to get 90 more horsepower on the red eye? Thanks in advance.
707 to 797 horsepower
-
Hey Everyone! Vote for the Site Favourite HOTM winner for the year of 2022 HERE!
1 - 19 of 19 Posts
Well they upgraded all the internals. I don’t recall injector sizes, but the big difference is you’ve got a 2.4L blower, Redeye has a 2.7L
You can tune to be more than 797, but it’s not just loading a Redeye factory tune and bam there you go.
You can tune to be more than 797, but it’s not just loading a Redeye factory tune and bam there you go.
So for reality, I had my 717 21 Charger HC tuned by Satera. It made 655hp stock and 734hp to the tire tuned. I'd say thats a bit more than 797 at the crank, with just a tune for 93. So moral of the story, just get a tune.
They changed the engine, added the bigger blower, and changed the tune. Almost everything internally is different.
Huh? Hellcat shortblocks will do 1k HP easy. It’s the fuel system that needs to upgrade. But yeah 80 more HP is nothing to a 707 HC.
I stand corrected. ...........I wonder why the engineers made all of those engine/supercharger improvements for the Demon/RE/SS if it was just fuel. They didn't know?
Are you asking if the engineers didn’t know by making the hellcat shortblock forged, they didn’t know it would handle far more HP than that intended? I would say yes. They used parts that would far exceed their goals in the name of durability and longevity. They then did the same for subsequent models. Case in point the redeye doesn’t need dual fuel pumps to make 80 more crank HP over the hellcat. This has been proven by every tuner that’s ever tuned a stock 707 HC. They did this for durability and longevity.
The standard Hellcat engine has also been the engine of choice in every other chassis FCA chose to put a supercharged hemi in. The reason is likely that this motor is completely up to the task of its power output, and then some, and its durability was proven. The Demon/Redeye motor was developed for the extreme abuse of the track, and the mods people would inevitably throw at it for that purpose. Pound for pound however, I’d be willing to bet durability is similar, otherwise it wouldn’t be the engine used for the TRX, the Durango, and the Trackhawk.
Joined
·
1,170 Posts
In my case as my DD and an SUV I certainly don't stress the engine in any way on the commute...Any exhibition of speed is just going fast not doing full beans digs/launch control action..
The factory absolutely knows what the internals will handle. Remember, it was dialed way WAY down to the original 707 for both warranty and emissions sake. They knew it would take far more abuse.
Same with the Demon/Redeye engine. Reading statements from development is absolutely awesome. They took it to dyno late at night when no one else was around, so no one would see the massive amount of fuel going to that dyno cell and wouldn’t hear the thing roaring. Again, they knew exactly what it could do, and dialed it WAY down.
Same with the Demon/Redeye engine. Reading statements from development is absolutely awesome. They took it to dyno late at night when no one else was around, so no one would see the massive amount of fuel going to that dyno cell and wouldn’t hear the thing roaring. Again, they knew exactly what it could do, and dialed it WAY down.
Joined
·
229 Posts
700cc injectors, bigger SC, more air, and a different alloy rotating assembly. Thats the only differences.
the block from everything I have seen will hold up to 1000HP without issue.. to upgrade power the standard things I see are Upper Pulley, Tune, injectors.. some add lower pulley depending. If you start to get really aggressive and run high boost levels then I see most people need to get the blower ported, and upgrade the bearings. Of course tuning is everything.
Joined
·
56 Posts
If you leave everything bone stock and don't change any parts, is a "tune" worth it? And what exactly do they do to "tune" a '16 Challenger Hellcat with an M6? Thanks.
Joined
·
229 Posts
The stock fuel maps are atrocious on these cars. Look at your AFR now and then and youll notice more often than not 9ish afr is pretty common. They run pig rich from factory.
No thats the cat over temp kicking in destroying your AFR and power.
Joined
·
229 Posts
Whatever it is, they still run pig rich. A tune is worth cutting that out alone.
Absolutely. Thats the only way to get rid of COT and lean it out to what you should be running.
In short, yes
1 - 19 of 19 Posts
