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Which V8 should I get R/T or SCAT Pack

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Yep, I've had a a 5.7L and a 6.4L. It is a night and day difference in terms of performance. The difference in terms of fuel economy is negligible. 1-2mpg difference.

Best,
Yep, I did the same. Like I mentioned earlier, the SP is a better value - as for about $5K more, you're stepping up into a whole nother class of performance, and fun factor for that matter. Totally worth it IMO
 

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I have owned both. A 2018 RT Daytona & currently a 2021 SPWB. The Daytona was fun & I loved it on long trips. In 2019 I drove it 6800 miles on a trip to the Northwest. Lots of people on here don't like adaptive cruise, but it is great coming down out of mountains. You don't have to worry about heating up your brakes. I recently returned from a trip to Colorado in my SPWB. It was also enjoyable to drive. Gas mileage wasn't as good as the Daytona, but I did enjoy shutting down a couple of Mustangs in Las Vegas, NM. Other than that I pretty much stayed light footed. I moved up from the 5.7 to the 6.4 because I wanted more power. I suspect you would want to do the same if you get the RT.
I love adaptive cruise. When my wife got it on her Mustang GT I tried it out and instantly new I had to have it on my next car. I got it on my new scat and love it.
 

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I love adaptive cruise. When my wife got it on her Mustang GT I tried it out and instantly new I had to have it on my next car. I got it on my new scat and love it.
Agreed. I'll never own another daily driver that doesn't have adaptive cruise. It's THAT good, especially for long trips/commutes.

Best,
 
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Hi there! I was wondering if I should get a R/T Charger or a SCAT Charger as a daily driving vehicle? Most of my driving is highway miles, so I am not to worried about gas. In Florida(During COVID) I see a lot of used R/T Chargers that have 20k to 40k miles on them going for 29,000 to 35,000. I also see some used SCAT Chargers going for 38k to 43k. I test drove them both, I cant seem to decide what is the better car. I am coming from a 4cylinder Car to a V8. Also with my insurance company there isn't a difference in price between a R/T Charger and SCAT Charger.
I am new to this line as well and came from a Corvette Z06 that on the highway got 28 to 30 MPH. The trick is Eco mode if you want to run your V8 at a V4. It seems to adjust in sport mode between V8 to V4 when you need it without setting the car in Eco mode. I know this is available with the SRT option not sure if the R/T has this option so ask. I have a R/T Scat Pack Wide Body so a bit more expensive. It is a world of difference between a Corvette and this car, but still learning all the controls and options between the modes before any add-ons. I hope that helps.
 

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Buy whichever makes sense financially. Reading your thread, it doesn’t sound like you’re a performance enthusiast so it’s probably not really gonna matter to you. The scat will obviously cost more and is awesome to drive but the 5.7 RT isn’t bad either.
 

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IMO a lot of it comes down to:
  • what is your drive and traffic like?
  • how much do running costs matter to you?

If you spend a lot of time in heavy traffic you’re not going to get to enjoy the extra performance of the 392 and might as well get a 5.7. In that case you’re still getting the V8 sound and attitude (with good performance still), but you’re not wasting money on more expensive fuel and oil changes. However, if the price is close you might as well get a 392 for the extra performance and lower future depreciation.
 

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My Daytona 5.7 averaged only about 1-2 MPG more than my SRT 392 - so not much of a difference. As mentioned though, the 6.4 requires premium whereas the 5.7 does not.
Former RT owner says bank on using 89 on the RT but stay away from low tier cheap gas.

I didn’t have any issues on the RT rentals using 87 in CA which is pricey anyways.
 

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Former RT owner says bank on using 89 on the RT but stay away from low tier cheap gas.

I didn’t have any issues on the RT rentals using 87 in CA which is pricey anyways.
While the owners manual does say that 87 is acceptable the 89 is preferred. Car and Driver did a nice article on Premium vs. Regular (or premium vs. more premium depending on the car...) and they included a Charger R/T rental car they picked up at the airport!

Car and Drive Premium Gas, Worth it?

If you don't want to read the article here is the main graphic that they included after doing dyno runs, the Charger lost 14 hp and 23 lb-ft of torque but the 0-60 and 1/4 miles times were nearly the same:

 
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jashaun, I recommend you lease the RT over purchasing or leasing a Scat Pack.
 

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If you're not planning on racing, get the R/T. It's perfect as a DD. It's also the perfect platform for doing modifications. You'll get a lot of satisfaction (and respect) by building your own engine. The 5.7 also has that old-school HEMI sound that you're not going to get from the 6.4 HEMI. The 5.7 isn't as hot of a target for theft, which is nice. Then there's the broader range of fuel options, which is nice in a pinch. Parts for the 5.7 HEMI are more abundant as well. The 5.7 is somewhat detuned from the factory, so a few choice mods can give you a nice bump in performance. If you go 5.7, I would replace the stock exhaust manifolds with SRT shorty headers, CAI, add street cam, 3:09 rear, shutdown MDS, install 192* t-stat and adjust fan on temps. If you don't want to mod the engine, at least do the CAI, SRT headers and the 3:09 differential.
 

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If you're not planning on racing, get the R/T. It's perfect as a DD. It's also the perfect platform for doing modifications. You'll get a lot of satisfaction (and respect) by building your own engine. The 5.7 also has that old-school HEMI sound that you're not going to get from the 6.4 HEMI. The 5.7 isn't as hot of a target for theft, which is nice. Then there's the broader range of fuel options, which is nice in a pinch. Parts for the 5.7 HEMI are more abundant as well. The 5.7 is somewhat detuned from the factory, so a few choice mods can give you a nice bump in performance. If you go 5.7, I would replace the stock exhaust manifolds with SRT shorty headers, CAI, add street cam, 3:09 rear, shutdown MDS, install 192* t-stat and adjust fan on temps. If you don't want to mod the engine, at least do the CAI, SRT headers and the 3:09 differential.
Do you have any examples for audio comparisons on the active exhaust between the RT and the 392?

Also how do you adjust the the fan on temps for a 192 Tstat? What’s the stock stat - I see 200 ish temps.

If you can find a used cheap RT modding one might be interesting, but there’s no way I can compare the power of the Scat Pack to stock RTs I’ve driven. I could not go back to an RT. The 392 is a beast.
 

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There's no comparison in power between a 5.7 and 6.4, but I've said it in other threads, with the exact same setup I liked the way my 5.7 sounded much better than my 392.
 
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Interesting, this thread started 3 months ago, the OP has probably got his Charger or more possible - dropped the idea to get a Charger.

I believe we all can agree, that basically all depends on budget - if you have enough $ to buy the car and maintain - get more powerful engine, otherwise look something simpler.
He came from I4 car, and without knowing what he drove, would even suggest to look at some fully loaded GT rather then plain 345 or 392.
Don't think it relevant for OP......
 

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There's no comparison in power between a 5.7 and 6.4, but I've said it in other threads, with the exact same setup I liked the way my 5.7 sounded much better than my 392.
I think your right, but I’m not sure what 5.7 exhaust I heard, it was stock though. Also it does look like you can mod a 345 to keep up with a stock 392. This would make a cool project car. If I had the extra cash and room I’d be interested in a Challenger 345 to play with.
 

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I think your right, but I’m not sure what 5.7 exhaust I heard, it was stock though. Also it does look like you can mod a 345 to keep up with a stock 392. This would make a cool project car. If I had the extra cash and room I’d be interested in a Challenger 345 to play with.
My bone stock 2019 R/T sounds great... the 392s sound great too but you can tell the tone. The 345 is almost more of a burble hard to describe. Heck both sound awesome! I love the "BLAT" when you are on the gas in sport mode and get the 3-4 shift.

The 2.75 inch active exhaust sounds great even with the log style OEM manifolds on the 345. Years ago I had a set of the OEM 6.1 shorty "headers" and mid pipes and never did put them on my 2006 R/T (got a cracked midpipe covered under emissions warranty and then decided to sell them on). It would be nice to hear a 345 with the 6.4 manifolds.... do they use the same midpipes/cats now or are they still different?
 
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My bone stock 2019 R/T sounds great... the 392s sound great too but you can tell the tone. The 345 is almost more of a burble hard to describe. Heck both sound awesome! I love the "BLAT" when you are on the gas in sport mode and get the 3-4 shift.

The 2.75 inch active exhaust sounds great even with the log style OEM manifolds on the 345. Years ago I had a set of the OEM 6.1 shorty "headers" and mid pipes and never did put them on my 2006 R/T (got a cracked midpipe covered under emissions warranty and then decided to sell them on). It would be nice to hear a 345 with the 6.4 manifolds.... do they use the same midpipes/cats now or are they still different?
This modded RT is impressive.
I like the idea of the 392 Cam, stock ported intake, and the later RT active exhaust (inactivated ie no valves). I’m not a big fan of a lot of the aftermarket exhausts, headers, or mid deletes. Maybe do the rear diff as a later project. Not sure if that cam needs a retune.

 

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My bone stock 2019 R/T sounds great... the 392s sound great too but you can tell the tone. The 345 is almost more of a burble hard to describe. Heck both sound awesome! I love the "BLAT" when you are on the gas in sport mode and get the 3-4 shift.

The 2.75 inch active exhaust sounds great even with the log style OEM manifolds on the 345. Years ago I had a set of the OEM 6.1 shorty "headers" and mid pipes and never did put them on my 2006 R/T (got a cracked midpipe covered under emissions warranty and then decided to sell them on). It would be nice to hear a 345 with the 6.4 manifolds.... do they use the same midpipes/cats now or are they still different?

I've had both the 5.7 and now the 6.4, both with AES. The 5.7 was more sensitive to exhaust mods and louder overall. A muffler delete in the 5.7L was noticeably louder than when I did it on my 6.4. The 5.7 is def more "burble" like you say. But I honestly like the sound of the "throaty" and roaring 6.4 as it bangs thru the 8 gears quicker than the 5.7.

I'm curious to see which trim OP went with.
 

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Do you have any examples for audio comparisons on the active exhaust between the RT and the 392?

Also how do you adjust the the fan on temps for a 192 Tstat? What’s the stock stat - I see 200 ish temps.

If you can find a used cheap RT modding one might be interesting, but there’s no way I can compare the power of the Scat Pack to stock RTs I’ve driven. I could not go back to an RT. The 392 is a beast.
I do not have any audio files, nor would I rely on digitally compressed audio for accuracy.

Stock t-stat is 205*. You can't adjust the fan temps without first unlocking the ECM.

If you like to build, the 345 HEMI is the ticket. Its shorter stroke makes for quicker RPM's, of course. Modified intake, TB, headers, cam, intercooled procharger (8 lbs boost max), ECM tune and you're off! I've driven two 392 HEMI Challengers. The 392 is faster... but, it's nowhere close to the "raging beast from hell" it's made out to be. Not even close. Once you've driven a N/A 426 HEMI pushing 700 hp and 625 ft-lbs of torque, you'll forget all about the 392... I guarantee it! :)
 
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