[house]

I've owned and loved my E92 (manual) and F93 (DCT). No complaints, and miss my V8.

I'm currently debating between an i4 M50 and G80 Competition. I had a chance to drive a 2021 G82 Competition last week, and I was shockingly disappointed. When I was cruising (70mph or more), when I floored it, there was a significant delay (up to 1 second) before the car took off.

I knew it couldn't be turbo lag, and after playing around, it is the delay from going from 8th gear down to 6th.

I tried all the Sport, Sport Plus, and M modes. Nothing seemed to improve it.

On my F83, when I put it in M mode, it would automatically downshift to anticipate me driving more aggressive.

Before I commit to the i4 M50, is there something I'm missing? Is the delay in downshifting expected?

[0Camus0]

Originally Posted by house

I've owned and loved my E92 (manual) and F93 (DCT). No complaints, and miss my V8.

I'm currently debating between an i4 M50 and G80 Competition. I had a chance to drive a 2021 G82 Competition last week, and I was shockingly disappointed. When I was cruising (70mph or more), when I floored it, there was a significant delay (up to 1 second) before the car took off.

I knew it couldn't be turbo lag, and after playing around, it is the delay from going from 8th gear down to 6th.

I tried all the Sport, Sport Plus, and M modes. Nothing seemed to improve it.

On my F83, when I put it in M mode, it would automatically downshift to anticipate me driving more aggressive.

Before I commit to the i4 M50, is there something I'm missing? Is the delay in downshifting expected?

It is Turbo Lag, larger turbos than the F83, also higher Turbo Threshold. If you want quick response, go for the M340i. The B58 has just one small turbo that kicks in the low end so hard, that maybe is what you are looking for.

The S58 is designed to deliver power at the top end.

[jimbethesda]

Originally Posted by house

I've owned and loved my E92 (manual) and F93 (DCT). No complaints, and miss my V8.

I'm currently debating between an i4 M50 and G80 Competition. I had a chance to drive a 2021 G82 Competition last week, and I was shockingly disappointed. When I was cruising (70mph or more), when I floored it, there was a significant delay (up to 1 second) before the car took off.

I knew it couldn't be turbo lag, and after playing around, it is the delay from going from 8th gear down to 6th.

I tried all the Sport, Sport Plus, and M modes. Nothing seemed to improve it.

On my F83, when I put it in M mode, it would automatically downshift to anticipate me driving more aggressive.

Before I commit to the i4 M50, is there something I'm missing? Is the delay in downshifting expected?

Manually shift your gears. Sounds like the delay is in downshifting.

Electric cars (except taycan) only have one gear. Hard to beat the immediacy of the power delivery of EVs

[YamaLink]

Car and Driver wrote about highway passing speed: "The i4 M50 takes advantage of its all-wheel drive and the instant torque from its electric motors, though, going from 5 to 60 mph 1.0 second quicker than the M3. Our test results also show the gap in passing speeds, with the M3 requiring an additional 0.9 second to go from 30 to 50 mph and an extra 0.7 second to get from 50 to 70 mph."
https://www.caranddriver.com/news/a3...tition-tested/

[kjx]

Originally Posted by house

When I was cruising (70mph or more), when I floored it, there was a significant delay (up to 1 second) before the car took off.

I knew it couldn't be turbo lag, and after playing around, it is the delay from going from 8th gear down to 6th.

I tried all the Sport, Sport Plus, and M modes. Nothing seemed to improve it.

Likely operator error.

You appear to be shifting gears yourself because the car would never select 8th gear in Sports Plus at 70 mph (or even much higher speeds). The 8th gear is a tall, "efficiency" gear ratio.

Next, the modes are not a clear way to know for sure what you are experiencing because Sports Plus in my car can be configured with the most aggressive shift setting which it could be at its mildest in the car you drove.

Assuming Sports Plus and most aggressive shift setting, you wouldn't experience a whole lot of delay at the speeds you're mentioning because the car should be maintaining a 3.5k to 4.5k rpm by itself and shouldn't need to downshift at all.

Now if you're playing with shifts yourself prior to flooring it, it's operator error again because you need to be able to anticipate what you need a few seconds into the future (and 1 second is the bare minimum).

The only time I experience delay is if I'm in comfort, cruising around and then suddenly request Sports Plus levels of performance. There are two gear shifts down required and the time taken to take the engine up to 3.5k-ish rpm. The failure there is my inability to have anticipated the need for it.

[GixY2K]

I suggest using transmission setting S3 and not S1 or S2 while in S+.

In my opinion, this car couldn't be more jumpy with the setting described above. The response time is the best I've experienced.

[YamaLink]

How do you have Sport configured? Not Sport+.

[Tyga11]

Originally Posted by GixY2K

I suggest using transmission setting S3 and not S1 or S2 while in S+.

In my opinion, this car couldn't be more jumpy with the setting described above. The response time is the best I've experienced.

Yeah - I mean, that's literally one of the highlights of this car. You can beat virtually any car from a 70 roll except super cars.

[house]

Thanks everyone. I've owned two M cars, but the electronics were a bit different then my F83. I'm guessing whoever drove the car previously had S+ in S1, and I didn't think to check that.

I agree, my F83 would downshift when I was in S+ mode, so for the G82 to remain in 8th gear seemed very odd.

Still debating. I love the thrill and growl of an M.

[jimbethesda]

Originally Posted by house

Thanks everyone. I've owned two M cars, but the electronics were a bit different then my F83. I'm guessing whoever drove the car previously had S+ in S1, and I didn't think to check that.

I agree, my F83 would downshift when I was in S+ mode, so for the G82 to remain in 8th gear seemed very odd.

Still debating. I love the thrill and growl of an M.

I think you're mixing up concepts. Throttle sensitivity settings are efficient, sport, and sport plus.

We (or most of us) are talking about transmission settings. That's D 1,2, or 3 (automatic) or S 1, 2, or 3 (sequential aka manual). The D settings determine the logic behind the car changing the gears for you. D3 holds the gears longer vs D1 and D2 is in between. The S settings just change how quickly the car switches gears once YOU tell the car to shift.

Sounds like you were in S something? Maybe?

Anyway, to avoid the downside of auto mode, you should be is S (I like S3). About to "floor it"? Make sure you're in the correct gear first.

It's also possible I have no idea what you're talking about, so my apologies if I am.

[vetteflier]

I have never been in 8th gear in Sports Plus. I can shift there at 75-80, but it downshifts to 7th in a few seconds when it goes back to D. I find punching it at 70-100 shifts immediately down 3 gears at 70, 2 at 100. Zero lag. From idle, the 'max' torque is available at 2750. It does take a second to get there, but after that, the power is instantaneous--and I come from 6.2 liter NA V-8s. I suppose your results can vary, but if I want instant off the line torque, that's what launch control is for and why it is set in my M1 button.

[yousefnjr]

It's possible to keep it in lower gear once you're familiar with the settings, but even so response will never compare to an EV, that's their party piece

[masd79]

Get an g8x and you will love it.. in the end it's the best sports car/sedan out there before getting into a Porsche 911 turbo s or gt3, cayman gt4rs imo… EVs are super boring, I have driven em all..

[ano0oj]

AndroidRobot Can expand on this a bit, he sold his car because of this lag!!

[DavidXJ]

Originally Posted by kjx

Likely operator error.

You appear to be shifting gears yourself because the car would never select 8th gear in Sports Plus at 70 mph (or even much higher speeds). The 8th gear is a tall, "efficiency" gear ratio.

Next, the modes are not a clear way to know for sure what you are experiencing because Sports Plus in my car can be configured with the most aggressive shift setting which it could be at its mildest in the car you drove.

Assuming Sports Plus and most aggressive shift setting, you wouldn't experience a whole lot of delay at the speeds you're mentioning because the car should be maintaining a 3.5k to 4.5k rpm by itself and shouldn't need to downshift at all.

Now if you're playing with shifts yourself prior to flooring it, it's operator error again because you need to be able to anticipate what you need a few seconds into the future (and 1 second is the bare minimum).

The only time I experience delay is if I'm in comfort, cruising around and then suddenly request Sports Plus levels of performance. There are two gear shifts down required and the time taken to take the engine up to 3.5k-ish rpm. The failure there is my inability to have anticipated the need for it.

As a B58 'operator', I'd second this. As someone with an M3 on order, I'm intrigued by these conversations about lack of low down torque in the G8x, especially when comparisons are made to the M340i. But it strikes me that even while appreciating the added low rev torque of the B58, you've still got to anticipate your manoeuvre and downshift accordingly (especially when cruising in Comfort). As such, I've found myself having temporary recourse to the paddles quite frequently when executing overtakes; with the ZF8, you're already in top gear most of the time, so you're by default not in the best position for immediate acceleration unless you manually intervene.

Do I care? No: downshifting gives me something to do in a world in which software tries increasingly to do everything for us in advance.

[LuvMyE92]

Originally Posted by jimbethesda

It's also possible I have no idea what you're talking about, so my apologies if I am.

Of course, you all do realize that the solution to this issue is to buy the base model, with the proper manual transmission. Then there is no confusion at all between car issues and operator error.

Use the paddles, and downshift before you need to accelerate. The turbo will spool up and the response will be instantaneous.

[BardG]

Originally Posted by house

I've owned and loved my E92 (manual) and F93 (DCT). No complaints, and miss my V8.

I'm currently debating between an i4 M50 and G80 Competition. I had a chance to drive a 2021 G82 Competition last week, and I was shockingly disappointed. When I was cruising (70mph or more), when I floored it, there was a significant delay (up to 1 second) before the car took off.

I knew it couldn't be turbo lag, and after playing around, it is the delay from going from 8th gear down to 6th.

I tried all the Sport, Sport Plus, and M modes. Nothing seemed to improve it.

On my F83, when I put it in M mode, it would automatically downshift to anticipate me driving more aggressive.

Before I commit to the i4 M50, is there something I'm missing? Is the delay in downshifting expected?

Potentially lame question here: I'm coming out of an M550, is it fair to assume I'll definitely feel more bottom end torque from that engine than the M3 Competition engine?

[ZeroFx]

Originally Posted by 0Camus0

It is Turbo Lag, larger turbos than the F83, also higher Turbo Threshold. If you want quick response, go for the M340i. The B58 has just one small turbo that kicks in the low end so hard, that maybe is what you are looking for.

The S58 is designed to deliver power at the top end.

This is factually wrong lol.

The S58 has 2 small turbos which spool up faster

The M340 has one big single variable turbo that has more lag.

S58 puts out peak power from 3k RPM

[G30M]

Originally Posted by ZeroFx

This is factually wrong lol.

The S58 has 2 small turbos which spool up faster

The M340 has one big single variable turbo that has more lag.

S58 puts out peak power from 3k RPM

are you sure about the turbos?
and nope. peak power is around 6250rpm

[G30M]

Originally Posted by BardG

Potentially lame question here: I'm coming out of an M550, is it fair to assume I'll definitely feel more bottom end torque from that engine than the M3 Competition engine?

yes

[ZeroFx]

Originally Posted by G80M4

are you sure about the turbos?
and nope. peak power is around 6250rpm

Torque is from 2650rpm peak That means full pull is from low down and not high up.

And yes im sure about the turbos.

each turbo runs 3 cyls in the S58

The B58 has a twin power turbo which is much larger than one of the S58's

[0Camus0]

Originally Posted by ZeroFx

Torque is from 2650rpm peak That means full pull is from low down and not high up.

And yes im sure about the turbos.

each turbo runs 3 cyls in the S58

The B58 has a twin power turbo which is much larger than one of the S58's

The B58 has twin scroll single turbo and it's a small Turbo that tops duty cycle at ~520 whp.

The S58 has larger turbos than the S55. Yes maybe the B58 twin scroll single turbo it's a bit larger, but each Turbo has only 3 cylinders, so is not the same as to spooling one turbo with 6 cylinders.

This is factually wrong lol.

The S58 has 2 small turbos which spool up faster

The M340 has one big single variable turbo that has more lag.

S58 puts out peak power from 3k RPM

You haven't driven any B58? I had a Supra and there is virtually no lag, it has lots of low end torque, but it dies out at the top end. That's why people go for Pure700/Pure800 to gain more top end power, just look at the dyno chart:

B58 Peak torque at ~2000 rpm Peak Power at ~6000 rpm



S58 Peak torque at 4300 rpm Peak Power at ~6800 rpm