Performance Dual vs Quad - Acceleration, NVH and other differences?

[portdirect]

I know it was asked in the 1st post to not be discussed (so sorry @ev_fanatic !). I'm hopeful we are in a similar position to @Proxy where we get a R1S alongside our QM R1T: In real world terms - comparing QM Conserve to DM All-Purpose do we know which has the longer (75MPH+) highway range? I've searched a bit on this, but cant see anyone having done a comparison of the two 'equivalent' drive modes for this kind of driving.

Sponsored

 

[ndmiller]

Anything over 500 horsepower and torque in a passenger vehicle is just gravy. They're all ridiculously fast. I got the DMP for the additional range, most likely from the AP disconnect of the rear in most conditions.

 

[DuoRivians]

When you launch, take a deep breath, tighten those ab muscles, and go. It’ll help reduce the feeling of lightheadedness. ?

 

[Proxy]

@portdirect I forgot to note that the R1S was brand new and the tires were probably less efficient than worn OEM 22” tires and the R1T had 10,000 miles in it, here you go:

Drove the exact same route leaving together for a real world Dual vs. Quad comparison. Not the best comparison since they are very different but it at least it is some data. Recommend cold tire pressures set. Unfortunately the R1T had a warmer battery. SoCal weather on the freeway with moderate traffic. The two vehicles and the results:
2022 R1T Quad motor large pack 20” OEM AT tires RUS spare Converse Auto height
2023 R1S Dual motor performance max pack 21” OEM AS tires All purpose Auto height

46.4 miles 41mph 1 hour 8 minutes
Quad 2.43 mi./kWh 19.1 kWh 16% used
Dual 2.63 mi./kWh 17.8 kWh 13% used

I chose the modes to compare what I use for road trips instead of both in all purpose.

 

[portdirect]

@portdirect I forgot to note that the R1S was brand new and the tires were probably less efficient than worn OEM 22” tires and the R1T had 10,000 miles in it, here you go:

Thanks! though would really be great to get someone like @OutofSpecKyle to make a comparison (hint hint... ) - 20 AT vs 21 AS tyres etc make such a diff that i think we really need a true back-to-back test . I suspect in practice there's very little in it (and i do wonder if the quad at 70mph in conserve may actually beat the DM, which would be pretty funny - eg. https://www.rivianforums.com/forum/threads/dual-motor-real-life-efficiency.20801/post-433147)... For us this is kinda important, the one road trip we semi-regularly make is St Louis to Chicago, which can *just* be made without charging in good weather and conserve in the QM R1T, would be good to know if the dual in all purpose would be materially better - if not I'm tempted to get the QUAD so both vehicles have the same characteristics/warranty etc.

 

[Proxy]

Back on topic. I turned the radio off in the R1S DMP. I can barely hear the rear motor spool up and down in the front seat in all purpose mode. Not annoying at all in any seat.

 

[ev_fanatic]

I know it was asked in the 1st post to not be discussed (so sorry @ev_fanatic !). I'm hopeful we are in a similar position to @Proxy where we get a R1S alongside our QM R1T: In real world terms - comparing QM Conserve to DM All-Purpose do we know which has the longer (75MPH+) highway range? I've searched a bit on this, but cant see anyone having done a comparison of the two 'equivalent' drive modes for this kind of driving.

From what I've read here and on Reddit so far, range on quad conserve and dual perf is very similar so I'm not too concerned on that front.

 

[ev_fanatic]

Anything over 500 horsepower and torque in a passenger vehicle is just gravy. They're all ridiculously fast. I got the DMP for the additional range, most likely from the AP disconnect of the rear in most conditions.

Is there a momentary ramp up in the torque on acceleration from a steady 25mph (when the rear may be disconnected) or is it immediate on the DMP when you quickly floor the accel?

 

[Russya]

Well I'm in the Bay Area and am more than happy to let you try my R1S quad back to back with a dual if you can find someone else willing to meet somewhere and check it out. Any Bay Area dual performance owners want to help someone out and maybe just try them back to back for curiosity sakes?

 

[ndmiller]

Is there a momentary ramp up in the torque on acceleration from a steady 25mph (when the rear may be disconnected) or is it immediate on the DMP when you quickly floor the accel?

Honestly I've never been over 1/2 throttle (1/2 throttle and I'm at 55 in a 45 in an instant.) and that's quicker than my Porsche. Seems immediate when I push down, but I'll double check over the weekend.

 

[ev_fanatic]

Well I'm in the Bay Area and am more than happy to let you try my R1S quad back to back with a dual if you can find someone else willing to meet somewhere and check it out. Any Bay Area dual performance owners want to help someone out and maybe just try them back to back for curiosity sakes?

That is very generous of you! I scheduled a demo drive with the SJ center in a couple of weeks, hopefully they will have both vehicles available but if not I'll definitely reach out. Will report back either way.

 

[ev_fanatic]

Honestly I've never been over 1/2 throttle (1/2 throttle and I'm at 55 in a 45 in an instant.) and that's quicker than my Porsche. Seems immediate when I push down, but I'll double check over the weekend.

I suppose the difference will only be perceptible if you floor it over 19mph (or something around there) when the rear motor isn't engaged. I have to admit there are very few scenarios where this will be even kind-of an issue, given that I can switch to sport mode and force both motors to be engaged if/when showboating

 

[csleee]

Is it just me or does the PDM in this video at the ~7min mark seem slow?'

 

[usofrob]

Kind of a lot of complaints about the seats. It's my understanding that moderate padding (like the Rivian) is generally better at preventing sore spots when sitting for a long time. I find that to be the case with my office chair. I like my Model 3 seats fine, and I liked the Rivian seats fine too, but I only got to sit in one for a short drive.

 

[dbjunction]

I had very similar kinds of questions regarding quad vs. PDM...specifically, I wanted to know how much they differ in All Purpose Mode (APM) given that I intend to drive in that mode 90% of the time. Luckily I got to test drive both of them back to back last week (PDM first and then Quad) and here's my experience (as an aside, I currently drive BMW X5 M50i and my wife has BMW iX 50. Before X5, I drove Model S P90D with ludicrous mode update for 3 yrs):

So, first drove the PDM and I loved it. The power delivery was smooth and in APM, it had decent amount of power (given that I have had fairly fast cars, this is all relative). Power was significantly higher in sport mode - though not hit your head back like my Model S P90D used to. I was also concerned about shifting from AWD to FWD mode at 19mph or on sudden acceleration and I made those many times intentionally during my test drive but personally could not feel the switchover at all - it was very smooth transition. I could see the transition in the imagery on screen but could not feel it (big plus). I was concerned it would be a turbo lag like my wife's old Lexus RX 350 used to have but no, none at all. And the car was quiet - not IX 50 quiet, but very quiet. I loved it and was sold. Till I drove Quad right after it.

On to Quad now - as soon as I started driving it, it immediately felt... lighter, smoother, quicker. Even in APM, I felt it was as powerful as PDM in sport mode... and this is critical for me personally because, like mentioned above, I will mainly drive in APM. In sport mode, Quad reminded me of my Model S P90D - the same hit your head back sensation. I had heard a lot about more noise in Quad vs. Dual but I personally did not perceive it - they seemed identical to me. Perhaps because my test PDM had 20" wheels and Quad had 22" (the former being noisier perhaps made them even). Regardless, I did not find either of them noisy enough to be bothersome.

I think if someone drives them back-to-back like I did, and cares about acceleration and quick response curves even for gentle movements, Quad will stand out within mins, no question. If you don't and depending on what you have driven in the past, you may find PDM more than acceptable. For me personally, now that I know the difference after driving them b2b for 25 mins each, I know I have to go for Quad.

Sponsored