[Playhard]

Anyone have a link or actual test done on the new line up for Quarter and 0-60 times. Im not finding much on the web. I wondering with the new 8 speed if the 2015 are seeing better times. The only one I found was an RT with a claimed 5.4 0-60 and no quarter time.

 

[EddieFL]

Anyone have a link or actual test done on the new line up for Quarter and 0-60 times. Im not finding much on the web. I wondering with the new 8 speed if the 2015 are seeing better times. The only one I found was an RT with a claimed 5.4 0-60 and no quarter time.

I pretty much check daily as part of my morning work routine all the car magazine websites and nothing...It seems the Hellcats primarily, and the SRT/Scats got all the performance tests done while every other model below got "first drives" or "first tests" but all they wrote about were their general impressions of the cars. Wouldnt suprise me if they never actually got around to number test the R/T's, I believe Car and Driver tested the Chally V6 but not the 5.7. So many models I guess they can only do so many...I do home they get to the R/T eventually as it would be cool to know how much the 8-speed improved things.

 

[Playhard]

Yeah exactly what Im wonder on the RT. Since the 392 got a bump in hp, the performance figures would not provide an exact comparison to the 11-14 SRT8 392. The 2015 392 is a couple tenth faster but that's with the additional 15 hp and the 8 speed tranny. So maybe all we can expect out of the 5.7l RT with the new 8 speed and same hp is a few tenths at best.

I read estimates as high as 1/2 second faster on the RT way back when the 8 speed was announced as the base tranny. I was really excited about that. It would have made me consider an RT again without the Scat when it comes time for replacement.

 

[sal jc]

Here you go..

http://www.automobile-catalog.com/

0-60:
2014 - 5.7
2015 - 5.1

 

[Mean R/T]

2014 5.7? Moter trend got 5.3 and inside line got 5.4 to 60. And I thought 2015 would be in the high 4s to 60 with the 8 speed.

 

[EddieFL]

2014 5.7? Moter trend got 5.3 and inside line got 5.4 to 60. And I thought 2015 would be in the high 4s to 60 with the 8 speed.

Yep, and Car and Driver got it to 5.2 to 60 and 13.8 at the 1/4 mile. The fastest 1/4 I've seen is 13.7 for a 2011-14 by one of the magazines and that 5.2 is the fastest I've seen to 60. I would hope the 2015 would at least get a 5 even or actually dip into the high 4's. Hopefully the R/T doesn't just fall through the cracks when it comes to someone testing it. I would not get a 2015 since I recently got a 2014 R/T but I'm still curious. My next car would be either a left over 2014 SRT (they are still retarded expensive, even 2013's still sitting at dealerships) or MAYBE a 2015-16 Scat Pack. That is all if I don't choose to supercharge my R/T later on lol.

 

[sal jc]

2014 5.7? Moter trend got 5.3 and inside line got 5.4 to 60. And I thought 2015 would be in the high 4s to 60 with the 8 speed.

Well the 0-60 difference between the 5 & 8 spd according to auto-catalog ^ is 0.6 seconds.
So if the '14 is really closer to 5.3 then that would put the '15 around 4.7 sec.

Regardless of what the actual numbers are, the 8 spd is faster..



edit: Those are also base R/T's with 2.65/2.62 rears, without the Road&Track package.
They list the '14 Road&Track w/3.06 rear at 5.4 sec.





___________________

 

[djtuzik]

seems like a big jump just because of the tranny

 

[GTO_04]

seems like a big jump just because of the tranny

True, but keep in mind that once you figure in the overall gear ratios, the 8 speed with the 2.62 axle ratio has a similar overall ratio to the 5 speed with the 3.92 axle ratio. And we know the Mopar 11, which had the 3.92, was good for upper 4 second to low 5 second 0-60 times.

At any rate, it is a good thing they didn't dumb down the 8 speed with overly restrictive firmware!

GTO_04

 

[Playhard]

It would then seem reasonable to see times in the high 4s to low 5 range with the 3.06 and 8 speed depending on conditions and the driver. I would consider going this route since its 7k less then the scat pack 392 for improved performance over the 11-14 RTs. However, a gently used scat would be preferred if it landed around the same price point.

 

[EddieFL]

It would then seem reasonable to see times in the high 4s to low 5 range with the 3.06 and 8 speed depending on conditions and the driver. I would consider going this route since its 7k less then the scat pack 392 for improved performance over the 11-14 RTs. However, a gently used scat would be preferred if it landed around the same price point.

I don't know, IMO I don't think I would trade a 2011-14 for just a couple of tenth's improvement to 60 for the 2015s, and from what I remember reading the gas mileage didn't go up dramaticaly either. It still essentially has the same engine from 2008-9 (or whichever year they went to the 368-370 HP version). Now if someone has a super high mileage 2011-14 and they just want a brand new 2015 R/T without caring about maximum performance then that would make sense for me. Otherwise like you said I would hold out for the scat pack if I'm going to make a big investment on a car again, I would want a definite improvement in performance. Now if they would actually just number test a 2015 R/T already so we can stop speculating and see what it can do lol. :beerchug:

 

[Playhard]

I don't know, IMO I don't think I would trade a 2011-14 for just a couple of tenth's improvement to 60 for the 2015s

In my case it would be more then a few tenths. I have the RT Max which comes with the 2.65 rear end and open differential. The combination with the 5 speed make it the slowest RT of the group. For me I would gain at least .5 to .75 performance improvement with the track pack, 8 speed and the limited slip differential.

But like I said in an earlier post, If a gently used, low mileage 2015 RT Scat came on the market I would opt for that instead if the price was right. I did price a RT Scat using the 2015 RT pricing with options and added about 7k to get in the ballpark. The way I would want the car it would retail for $46-$47k. More then I would want to spend. Just me.

I did find a new 2015 RT with the track pack, leather, sunroof, and all the goodies like my Max for $34500 after rebate and discounts. Not bad. However, I don't believe I would see those discounts on the Scat Pack RT. Kinda like used 2012-2014 SRT8 that still go for 35-38k with 15k miles or so. New 2014 still are commanding $47-51k. Not worth it in my eyes at this point. Maybe that will all change once a lot of 2015s hit the dealers along with the Scat Pack and SRT versions.

Fun that we have all these choices now.

 

[rayainsw]

*** warning – speculation mode = ON ***

Caveat: I do not currently drive a 2015 Charger – though I expect that an R/T will be my next car, and I have tested both a 2015 Challenger R/T with the ZF 8-speed automatic and a 2015 Charger R/T.

My ** GUESS ** is that the acceleration will be marginally better, due to more advantageous gearing and quicker shifting. Though it may well be only 2 or 3 tenths to 60, 70, etc. it certainly does feel satisfyingly quick, to me.

Further, my bet is that in identical high speed [ but legal-ish ] driving, the low RPM at cruise for the 8-speed will provide somewhat improved ‘real world’ fuel economy vs. the 2014 [ and before ] 5-speeds – and vs. the EPA numbers. Note that [ see links below ] the EPA added what they termed a High Speed fuel economy test some time ago.

“High Speed: Represents city and highway driving at higher speeds with more aggressive acceleration and braking.” - EPA

However, the average speed here in this added test is still less than 50 MPH, only a very small portion is run at 70 MPH or above, and the several ‘more aggressive’ acceleration portions would largely counter any improvement in the MPG during what I mean when I say ‘high speed’. Meaning: for me, relatively constant 65 to 75 \ 80 MPH cruising in light to moderate traffic. This is where I expect that a meaningful increase in MPG vs. the 5-speed would show up.

- Ray
Hoping to check that out in the near future . . .

http://www.fueleconomy.gov/feg/fe_test_schedules.shtml

http://smg.photobucket.com/user/ray...eedtest20141217084638555_zps4d6f235d.jpg.html

 

[Playhard]

Ray, just adding my two cents. With the 2.65 rear end, 5 speed and AFM, on my 2011 RT, at 75 mph steady driving I can manage 28.5 mpg. Now that's running top tier 89 octane fuel on a relatively flat freeway. Ive done this multiple times on long trips. My rpms with the 2.62 are low at that speed. Right around 2k. At 65 mph I'm between 1700 and 1800 rpm.

With that said, I anticipate the same mpg numbers from a 2015 Rt from the 3.06 rear axle ratio with the addition of the 8 speed. But I would gain at least a 1/2 second or more in 0-60. I believe my Rt Max with the 2.65 axle run 5.7 ish 0-60.

So it depends on which RT package your driving now. For me with my Max it might make sense when it comes time to trade to get another RT with the track pack. But oh would a 392 be fun.

 

[rayainsw]

My observations during a test drive [ 2015 Charger R/T with standard \ 2.62:1 final drive ] are that 60 MPH = very close to 1,250 RPM. That makes the -
RPM at 65 = approx. 1,350
RPM at 70 = approx. 1,450
RPM at 75 = approx. 1,550
RPM at 80 = approx. 1,650

Thus, my guess is that at 65 – 80 MPH, with those substantially lower [ almost 25% lower ] RPM at cruise, there will be an increase in MPG.

- Ray
Waiting for a suitably equipped R/T to appear on a local lot . . .

 

[EddieFL]

In my case it would be more then a few tenths. I have the RT Max which comes with the 2.65 rear end and open differential. The combination with the 5 speed make it the slowest RT of the group. For me I would gain at least .5 to .75 performance improvement with the track pack, 8 speed and the limited slip differential.

But like I said in an earlier post, If a gently used, low mileage 2015 RT Scat came on the market I would opt for that instead if the price was right. I did price a RT Scat using the 2015 RT pricing with options and added about 7k to get in the ballpark. The way I would want the car it would retail for $46-$47k. More then I would want to spend. Just me.

I did find a new 2015 RT with the track pack, leather, sunroof, and all the goodies like my Max for $34500 after rebate and discounts. Not bad. However, I don't believe I would see those discounts on the Scat Pack RT. Kinda like used 2012-2014 SRT8 that still go for 35-38k with 15k miles or so. New 2014 still are commanding $47-51k. Not worth it in my eyes at this point. Maybe that will all change once a lot of 2015s hit the dealers along with the Scat Pack and SRT versions.

Fun that we have all these choices now.

Gotcha man, that R/T max is a sweet ride though. Too bad Mopar doesn't offer gear upgrades for our cars, and if they do I can't tell because their site sucks and I have yet to find a computer that runs it smoothly lol. Yeah it's pretty cool that we have so many choices now a days, truly the golden age of sports/muscle cars. And I have also kept an eye out for prices of the new 2014 SRTs still in lots and they are still ridiculous, even a few 2013s that have been sitting on lots for two years and they still want 45k plus for them, not worth it for me either. I'm happy with my R/T though, just want to upgrade it to what IMO should have been like from the factory. Scat pack 1 (maybe 2), Mopar lowering springs, and lip spoiler. :beerchug:

 

[djtuzik]

Ray, just adding my two cents. With the 2.65 rear end, 5 speed and AFM, on my 2011 RT, at 75 mph steady driving I can manage 28.5 mpg. Now that's running top tier 89 octane fuel on a relatively flat freeway. Ive done this multiple times on long trips. My rpms with the 2.62 are low at that speed. Right around 2k. At 65 mph I'm between 1700 and 1800 rpm.

75 ECO mode is off so not sure how you do it

 

[Playhard]

75 ECO mode is off so not sure how you do it

Weird, so why would eco mode be off???? If its rpm based? Maybe with the 2.65 axel it stays on longer. My Eco light is still on and it feels and sounds like 4 cyl. (MDS) mode at 75.

 

[djtuzik]

Weird, so why would eco mode be off???? If its rpm based? Maybe with the 2.65 axel it stays on longer. My Eco light is still on and it feels and sounds like 4 cyl. (MDS) mode at 75.

ok maybe I'm wrong, my 3.06 blacktop could of been different...

 

[Playhard]

ok maybe I'm wrong, my 3.06 blacktop could of been different...

I agree with you on the 3.06. I did a little digging and it seems MDS at speeds is tied to rpms from what I gather. So that would make sense with your 3.06 axel vs my 2.65. What Rpms are you running at 75 mph and does it turn off right at 75 mph. Just curious.

Oh here is an earlier picture of my mpg. I just got the same with winter fuel on the same trip this past weekend. I now have 24k on her.