I recently bought a 2015 Challenger R/T with the Super Track Pack. It consists of stiffer springs and sway bars, better brakes pads and a few other tidbits. The Challenger rides about as firm as the Charger but the dampening of the bigger Bilstein struts makes for better jounce control.

I love how the car feels. There are a few neglected roads around here that I have used as a test section after I've made changes. I drove this road immediately after I installed the subframe connectors. The car felt more solid and had fewer rattles. I installed some Hushmat sound deadener and drove that road again. I heard thump as I hit the rough spots rather than a buzz or vibration.
Yesterday I expected to feel a harsher ride. I've driven Mopars with the torsion bars cranked way up and know how springy they can feel. Leave some coins in the ashtray and they will dance like crazy on a bumpy road. I really don't think that is the case here. I'll have to raid the coin jar and report back!
I'd expect these bars to feel better with more sidewall to cushion them. The price is great.
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Thanks Brian !

Replacing those old tires should be your top priority! Seriously, whenever I dismount old rubber like that the beads just disintegrate. The rubber is so brittle and inflexible that they look fine but crack and distort terribly. I'd hate to see you posting about a tire coming undone.

Yo7 -- With your sb Challenger, stepping up to ~1.15 Tbs and the good shocks you've mentioned, will be a very enjoyable ride.. and not harsh at all.

On my 340-6 Challenger with 1.24 Tbs (425 lb/in), Koni shocks and 60 series T/As (was 245 f, now 255 f, and 275 r), the ride is great, yes a little stiff, but not unbearable at all ... always a pleasure... street or especially hwy. I also have 255-50-16s (BFG GForce) for HPDE/HSAX events, and the ride is great to/from the tracks, as well as on the track.

As the sidewalls get shorter, the ride will become a little more noticeable, but still not bad at all. Naturally, avoiding pot holes and speed bumps, etc, should be done regardless of what you're driving.

With all the talk/concern about harsh rides with bigger TBs, a much more noticeable "harsher" ride will come when stiffening up the rear leafs. I have 225 lb/in (5" arch), and its stiff, but still bearable for street/hwy.

60 Series tires hide a lot of road feel. You won't notice anything but a nice ride. In the "off season" I run 235/60s on my aluminum headed small block challenger with 1.18 bars and the ride is fine. when I go to the 275/40s road feel amps up considerably. But I can corner at multiples of speed compared to the 15s...

Would you say the 275/40s are too rough with the 1.18 torsion bars? What shocks do you run with those bars?

I currently have the RCD Bilsteins. I am going to an adjustable shock up front very shortly. I would say that 1.18" torsion bars with my lightened E-body and 17" rubber up front is not for everybody. Hopefully the shocks will change my perspective. Depending how that works out I may try my NOS 1.22" bars.

Geez,

I must be a wimp. I went to Bilstiens and 1.06" T-bars on my 1973 Charger and I think it is about as stiff now as I'd want it. It feels GREAT on the road but going over train tracks makes you get whiplash. I think if I had gone much stiffer, I'd be unhappy.

I guess it's just me. However, I'd take the 1.06" bars I have now over the crap .92" that were on there before!

Anybody know what size bars these are P5249155 ? They are mopar performance bars and I was going to try them in my 68 Valiant.

1.14" A body.

That's what I run. 1.14 MP bars. Rate is higher than an E/B-body bars.

MP listed them as nearly the same exact rate as 1.16" E/B body bars. 1.14 A-body @ 323 lbs/in vs E/B-body @ 324 lbs/in wheel rates (at the ball joint).

MP 1.22" bars are listed at 396 lbs/in by MP.

How did the bars work for you? They don't have a left or right and the hex ends are not clocked. I am going to order some Viking shocks to try with them.

I run them too and they work very good with the Hotchkis/Fox adjustable shocks. They don't have a left and right if I remember correctly but you don't want to switch them up after you run them.

Hey Evan...Good to hear from you!
I loved seeing your car on the track. I was just looking at some video I shot that day. I didn't get much but I did see a quick shot with your car in it.
The GoPro I had didn't record anything! I thought I set it up right but when I connected it to the computer, I saw nothing but what was on it before. Pisser.

My car is sitting now while I swap to a different cam. I was running a big Lunati that made great top end but felt soft under 3000 rpms. I slipped in a MP 528 solid. Valves are lashed but I had to order gaskets before getting it back together. It should be better suited for street and road course with the smaller cam.

Definitely stiffer than my MP .99 T-bars. I think the Bilstein RCD's helped.

I believe? Evan has run them on his 66 Cuda with RCD's and than Fox's with no other real changes. If so, maybe he can comment on the street ride and handling difference between those two shocks with 1.14" T-bars.

I saw some video to, your car passing mine....Sounds like you have been busy on the Charger for next year. I was running 4:30 gears with a 286 Comp roller cam when we were out having fun so the rpm was always above 3000 if I ran in forth gear, just pulling 6500 on the straight and lifting. I tried 6500 in fifth once and was looking around for a roll cage and didn't see one so thought that might not be the best thing to do. I think your cam choice is a good one for what you are trying to do for sure.

Yes as Steve suggested I have run these bars with both the Bilsteins and the Fox shocks. I haven't messed with the adjustment much yet, for the most part I left them on the firmest setting. The difference between the two is a smoother ride, very firm but not jarring, they hold the car up very well, its a more balanced feeling. The Bilsteins are a very good shock, a massive upgrade over the KYBs for sure. I will say on a street car on full firm setting on the front don't try to take of too quick as they really pin the front end down with the big bars, no weight transfer at all but that's not what I am trying to do with my car.