261 replies to this topic

[Speedy]

Yeah that was likely a cell phone which won't have the best mic.  Probably exceeded the tonal range as it sounded great at idle.  The exhaust looks just like my Magnaflow and Vettes have had exhaust valves for a while.  My buddy had a wireless remote on his that he could hit and they'd open right up.  Totally changed the sound.

[Corrupted]

I was under the impression that the exhaust worked similar to the corvettes exhaust.

[rayzazoo]

I was under the impression that the exhaust worked similar to the corvettes exhaust.

 

It is very similar, however, the Challenger SRT and Hellcat are straight-through exhaust with the electronic butterfly valve before the rear resonator.

 

Corvette and Camaro incorporate the butterfly valve after the rear resonator as a secondary exhaust tip.

 

[Roomraider]

If that dummy did that to one of my cars, I'd fire his ass on the spot! Somebody send this clip to Sergio please!

Blue smoke & choking, probably no catch can  If you listen closely, sounds like it was loading up.

[Tout]

For those interested or haven't seen this, there is some good information and some questions that come out of this chat.

Chrysler Group LLC:




We have the key players here to answer your questions:
• Tim Kuniskis, President and CEO, Dodge and SRT brands
• Chris Cowland, Advanced and SRT Powertrain director
• Russ Ruedisueli, Head of SRT and Motorsports engineering
• Mark Trostle, Head of SRT Design
• Ryan Nagode, SRT interior design chief



Comment From Larry Velleqeutte
So why no horsepower rating yet on Hellcat? And when will it be completed? Also, any word on pricing?
Chris Cowland:
We’re still completing final calibration on the HEMI® Hellcat. The official rating numbers will be released soon. Stay tuned.
Tim Kuniskis:
As for pricing, it will be announced closer to launch
Comment From SRT_ORR
First off, kudos on making the Challenger the King of the Muscle cars again with 1971 refresh. How many units are you expected to produce in the full-bore HELLCAT trim ? or is it the "build-them-as-they-come" philosophy?
Tim Kuniskis:
Thanks! As I said in this video, this car will not be for everybody. We will gauge demand and then determine volumes.
Comment From SRT_ORR
Part two, where does the Dodge Challenger 392 Scat Pak Shaker stand amongst the SRT line-up? Will the 'entry' level Challenger SRT with the 392 have more goodies/different appearance? Technically speaking will things like shocks, brakes, steering etc be the same between the two?
Tim Kuniskis:
Some of the key differences between the 392 Scat Pack and the SRT 392 include: 3-mode adaptive dampening suspension, unique hood with center intake - similar to Viper, SRT performance pages with shift light, 20x9 forged aluminum wheels and available SRT Track Pack that adds larger 20x9.5 forged wheels and 15.4-inch six piston calipers
Comment From John McElroy
Is there a CD number for the aerodynamics of the car

Russ Ruedisueli:
The CD Challenger SRT Hellcat is .383, the SRT Challenger is .356
Comment From Guest
(Ditto on torque. Not even an "over 600.")
Chris Cowland:
The power and torque rating procedure runs concurrently. All we can say today is the power will be in excess of 600 bhp and torque above 575 lb.-ft.
Comment From Tony Swan
What modifications were made to engine internals to support increased output? -- Tony Swan
Chris Cowland:
The increase peak cylinder pressure of the HEMI Hellcat required that pistons, conrods and crankshaft were all upgraded. The pistons are forged, high-strength alloy and the piston pins use diamond-like-carbon coating. Ninety-one percent of the content is new.
Comment From Gary Vasilash
What percentage of the body panels are unique to the car
Mark Trostle:
The front fascia and hood are unique panels. The rear spoiler is unique as well.
Comment From Will
In the recent photos of the SRT Challenger 392 and SRT Challenger Hellcat (Beautiful and menacing BTW), they both show two different braking systems (four piston on the SRT 392 and six piston on the Hellcat). Will the Track Pack Brembo Brake option upgrade the four pistons to six pistons on the SRT 392?
Tim Kuniskis:
Yes indeed - the SRT 392 offers an SRT Track Package that includes the larger 20x9.5 forged aluminum wheels, larger brakes and Pirelli P Zero tires.
Comment From SRT_ORR
Are the tire's 275 all around or are the backs staggered?
Russ Ruedisueli:
275's all around are standard on the SRT Hellcat, they are optional on the Challenger SRT
Comment From Larry Velleqeutte
Any kind of timeline on "soon?" Weeks, months?
Tim Kuniskis:
Larry - we will release final performance numbers before the drive event.
Comment From Guest
Can you tell us something about peak rpm and torque? -- Tony Swan
Chris Cowland:
Peak power is produced at 6,000 rpm?
Comment From David Zatz
Roughly how far does the black key fob (and the Valet Mode) reduce power?
Russ Ruedisueli:
The red key is the only one that will unlock the maximum power available from the engine. The black key limits output to 500HP.
Comment From Paul A. Eisenstein
Back to the 5% number, Tim, from the video, is that your target?
Tim Kuniskis:
Paul - we've never offered a supercharged HEMI before, but being a new offering for us, we are unsure of consumer demand. As a result, we are not targeting nor constraining volumes at this point. We will gauge consumer demand at market launch.
Comment From Guest
Is it true the Supercharger was designed in house at Chrysler to optimize performance?
Chris Cowland:
The supercharger’s design and specifications were developed jointly between Chrysler Group SRT and IHI.
Comment From Jake Lingeman
How much better are those Cd numbers than the outgoing model
Russ Ruedisueli:
The CD is almost exactly the same for the Challenger SRT 392, however the aero balance is improved.
Comment From Christopher A.
Why utilize a 6.2L engine when the 6.4L already existed?
Chris Cowland:
The displacement of the HEMI Hellcat was reduced from the 6.4-liter HEMI via a stroke decrease to 90.9 mm in order to increase the strength of the crankshaft.
Comment From SRT_ORR
What warranty can we expect on the SRT Challenger and Hellcat? And will the 392 Shaker Scat Pak have the full Dodge warranty?
Tim Kuniskis:
The SRT Challenger 392 and Hellcat will offer the full factory warranty
Comment From Christopher A.
Did you look at turbo charging vs supercharge
Chris Cowland:
The supercharged option offers a better match to the vehicle characteristics we were targeting, specifically instant throttle response and low-speed torque
Comment From Tony Swan
Can you furnish bore x stroke for the 6.4 and 6.2 please?
Chris Cowland:
The 6.4-liter HEMI is 103.9 x 94.6; the HEMI Hellcat is 103.9 x 90.9
Tim Kuniskis:
No.
Chris Cowland:
yes it is
Comment From AJLenhardt
Will there be a HellCat model with less content and a lower premium, for example SRT Core/SRT Super Bee?
Tim Kuniskis:
No - there will not be
Comment From Guest
has the SRT Hellcat undergone the same durability testing previous SRT models were required to for track duty?
Russ Ruedisueli:
Yes, The SRT Hellcat is tested to the same standards as all SRT products.
Comment From Will
Will the exterior colo(u)rs be available year round or will certain colo(u)rs - H.I.P col(u)rs - will be limited one time offerings?
Mark Trostle:
The vehicle will be launched with 11 exterior colors. B-5 Blue and Sublime will be the first high-impact colors to be introduced.
Comment From John McElroy
I didn't know that IHI made superchargers (turbos yes). Why did you go with an unproven blower supplier in your first effort with a supercharger?
Chris Cowland:
We evaluated all of the current supercharger suppliers during the early stages of the program, relative to efficiency, power and torque requirements. IHI was selected as the best match to our requirements. They have very solid track record of supplying superchargers for high-end products such as AMG Mercedes.
Comment From Hemi Fan
Any unique exhaust setup for the Hellcat
Comment From Mopar Guy
When does preordering open up
Tim Kuniskis:
Orders will open up in the summer
Comment From Lindsay Brooke
I'm assuming the Hemi cylinder block for the Hellcat V8 is cast iron--correct? Why hasn't Chrysler offered a factory AL block for the high-output SRT versions of this V8, considering an AL block would take 50-70lb off the vehicle's front end?
Chris Cowland:
The bearing loads of the HEMI Hellcat demand the need for very high-strength block bulkheads. Cast-iron offers the best solution within the geometry of the HEMI family
Comment From BASONE88
Does this supercharged engine feature the Multi-Cylinder-Shut-Down technology?
Tim Kuniskis:
No
Comment From Christopher A.
What is Tim Kuniski's favorite feature on this new car
Tim Kuniskis:
The fact that this is the most extreme, hardcore ... *everyday* muscle car ever produced...
Tim Kuniskis:
Okay... it's the engine
Comment From Ralph Glover
What is the width of the Hellcat's front and rear tires
Mark Trostle:
The tire size is Pirelli 275/40 and the wheel size is 20x9.5. It's the same size all the way around.
Comment From guest
what about 1/4 times and speeds
Chris Cowland:
Bloody fast
Comment From -Brian
what upgrades to the rear end were made to accommodate increased power. we tend to leave bits and pieces on the track.
Russ Ruedisueli:
The entire SRT drive line was upgraded. That includes prop shafts, axles , 1/2 shafts, and cooling.
Comment From Gary Vasilash
How much of the sheet metal is different from the "normal" Challenger; what is the extent of carryover in the interior?
Ryan Nagode:
Mark captured the sheet metal question, see his answer above. As for the interior the overall design is shared between the Dodge and SRT variants. Challenger SRT's uniqueness is found in our color and material palletes including Laguna Leather, Unique Cluster appearances and 7" TFT Imagery, SRT Drive Mode control screens, and "Engine Turn" stamped-aluminum Instrument panel and console bezels.
Comment From Guest
when will HP and torque Numbers be disclosed?
Tim Kuniskis:
The performance figures will be released before the drive event this summer.
Comment From D. Jackson
Is the Hellcat using mass air EFI
Chris Cowland:
MAF is used for bypass, throttle and OBD controls
Comment From D. Jackson
The P-Zeros were they the best tires for the Hellcat and are they Hellcat only
Mark Trostle:
Yes, they are the best tire for the car and they are optional with the Track Pack.
Comment From Christopher A.
What was the biggest challenge in producing the numbers you wanted
Chris Cowland:
We defined an SRT requirement for the HEMI Hellcat that included the ability to complete 20 minutes of full-speed track driving in extreme ambient temperatures without the need for cooling-system-driven derate. This places significant burden on the cooling capacity of the vehicle.
Comment From Lindsay Brooke
Is the IHI blower a Lysholm or Roots unit?
Chris Cowland:
Screw-type
Comment From David Zatz
Do you have any idea on top speed? Do we have a match for the 1969 Dodge Charger Daytona?
Tim Kuniskis:
Nice try...
Comment From D. Jackson
What are all of the adjustable options for performance?
Russ Ruedisueli:
The drive modes allow the customers to choose shock settings, steering assist levels, horse power, traction settings, auto transmission calibration/shift points. There are over 125 different combinations
Comment From Tony Swan
What is Hellcat final drive?
Chris Cowland:
3.70 for MT; 2.62 for AT
Comment From Alex Stoklosa
What power level does the black key limit the Hellcat's output to?
Russ Ruedisueli:
The black key output is 500 HP
Comment From Christopher A.
Which person was most crucial to the creation of the Hellcat?
Tim Kuniskis:
Sergio Marchionn

 

[Speedy]

Sergio the most crucial person to the Hellcat's creation?  Why because he allowed it?  That was an odd answer. 

[toofart]

I think it's a fair answer to a stupid question.  You can't attribute a product like that to a single person, and if you do, it might as well be the CEO, on behalf of everyone.

[srt5939]

all I care about is when and how much. All the rest is just smoke up my ass

[HemiSam]

LMAO @ John.

 

It's a smart answer if you want to move up in a corporate organization with a leadership team that's across the pond...

 

 

 

HS

[BJB]

Went for a ride in one today...

[Adanac Charger]

You're gonna have to do better than that!

[BJB]

Sorry, pinky swore on everything else.   

[Jpw2133]

all I care about is when and how much. All the rest is just smoke up my ass

^^^ Please be under 70K

[Roomraider]

Sorry, pinky swore on everything else. 

[Goehner]

http://www.foxnews.c...intcmp=features

 

We got our first look at the 2015 Dodge Challenger SRT Hellcat a week ago but now Dodge has dropped a few more details and photos for what’s shaping up to be the brand’s most potent muscle car in its entire history. No, we still don’t know how much power and torque will be offered—Dodge is only promising “more than” 600 horsepower—but we do have plenty of other details.

ALSO SEE: 2015 Dodge Challenger SRT Hellcat: Live Photos And Video

 

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The supercharged 6.2-liter HEMI V-8 powering the Challenger SRT Hellcat shares just 9 percent of its componentry with Dodge’s 6.4-liter V-8. Its cast-iron block features unique water jackets to deliver optimal cooling and inside there’s a forged-steel crankshaft with induction-hardened bearing surfaces, allowing it to withstand firing pressures of 1,595 psi.

High-strength, forged-alloy pistons are coupled to powder-forged connecting rods with high load-capacity bushings and diamond-like carbon-coated piston pins. The cylinder heads are also heat-treated for improved thermal conductivity and sodium-cooled exhaust valves feature hollow-stem construction and special steel-alloy heads that can withstand temperatures as high as 1,472 F (800 C).

The new twin-screw supercharger, sealed for life with premium synthetic oil, boasts a drive ratio of 2.36:1 and a maximum speed of 14,600 rpm. The 2.4-liter blower features integral charge coolers and an integrated electronic bypass valve to regulate boost pressure to a maximum of 11.6 psi. After leaving the engine, the now superheated gases are directed rearward via a 2.75-inch, straight-through, twin-exhaust system with an electronically controlled valve to control the sound.

The fuel system keeps pace with an in-tank pump that accommodates variable pressures, half-inch fuel lines and eight high-flow injectors that can drain the car’s 18.5-gallon fuel tank in just 13 minutes when the engine is running at full power.

MUST WATCH: Pagani Huayra From The Driver's Point Of View: Video

Drive in the 2015 Challenger SRT Hellcat goes to the rear wheels only, via a six-speed manual borrowed from the Viper supercar or a new eight-speed automatic. Modifications to both units, mostly to allow them to handle the high torque output, make them unique to the Challenger SRT Hellcat.

New axles also deliver greater efficiency and the capacity to withstand high torque. The 2015 Challenger SRT Hellcat's 230-mm rear axle also provides for efficiency improvement, compared with the one it replaces. Design features that contribute to the axle's efficiency gains include lightweight construction, new cooling fins, low viscosity fluid and specially designed bearings. The new driveshaft and half-shafts also benefit from premium lubricants designed for high-speed operation.

An asymmetric limited-slip differential allows for unique bias-ratio tuning for on- and off-throttle behavior. This serves to enhance grip, stability and steering response, enabling smooth power delivery for hard acceleration on corner exits. When trail-braking, the differential further tightens to stabilize the car and prevent oversteer.

Finally, the 2015 Challenger SRT Hellcat rides on 20-inch forged aluminum wheels that measure 9.5 inches across and are shod with 245/45 Goodyear tires (Pirelli P Zeroes are available). Inside these are the largest brakes ever offered in a Chrysler passenger vehicle, with the rotors up front, from Brembo, measuring 15.4 inches across. They are clamped by six-piston calipers.

Stay tuned for more details on the 2015 Dodge Challenger SRT Hellcat to be released as we approach the car's showroom debut towards the end of the year.

Probably already been posted, but just in case

[Mopar408]

ill be interested if the trans will truly live and what is different from the existing 6spd?

[Corrupted]

Fuck, those turbos in the video sound freaking awesome!

[Apps]

ill be interested if the trans will truly live and what is different from the existing 6spd?

It's designed to handle the He'll cat and passed durability like any other OEM trans....why do you think it won't live?

[sharkcohen]

Because shit breaks.