I have to say it, the G70 needs a new transmission ASAP

[MemberNoLongerAvailable]

Sorry...I take that back. This one is.

Don’t be sorry, I understand you’re still struggling, make sure you read up on transmissions though okay?

 

[joschneider]

But to say the least, Hyundai’s 8 speed auto is not a DCT. I understand conserving cost and not branching out other companies to develop their transmissions for them but the Veloster’s 8 speed DCT would do fine. I’ve often wondered and hypothesized what a Veloster’s tranny swap to a G70 would cost and if it would indeed function properly.

I don’t know where I remember seeing this, but I think I read that the particular DCT in the veloster cannot handle the torque of the 3.3TT

 

[MemberNoLongerAvailable]

Fair enough. It’s just that your RPMs and shifting point was a little off, so that definitely threw people off your initial point. Along with explaining what a transmission is to people already on a car forum

Yes, the transmission is the weakest point of a very overall strong car. But it’s definitely due to transmission tuning, something they could fix or iterate on. Along with tuning companies like LAP3 now able to adjust things like launch control, the future is bright for the G70

Yeah sorry about the explanation, I thought this place was something like Reddit where you have to be very explicit in your questions and detail what you mean to say like it’s an essay or else your post will be removed.

 

[Chad86tsi]

I don’t know where I remember seeing this, but I think I read that the particular DCT in the veloster cannot handle the torque of the 3.3TT

D8LF1/D8F48W[edit]​

Rated up to 48 kg⋅m (471 N⋅m; 347 lbf⋅ft).

 

[canucklehead604]

Here is a c43 AMG 2020 (385 HP), right around the same horsepower and torque as the G70; matter of fact, this exact car is what the G70 primarily competes with. You can easily notice how direct precise the DCT shifts vs The G70 standard 8 speed auto.

^ as far as i am aware, the C43 does not have a DCT. It is a 9 speed slushbox - albeit a very good one from all accounts. I could be wrong, but i seriously considered one before i bought the G70 and the ones i drove did not have a DCT.

So people seem to hate the 6MT, and now the 8AT. I guess something has to be picked on...anywho, i got no skin in this 8AT game. No manual, no care. So i’ll sit on the sidelines for the rest of this thread.

C&D article with no mention of a DCT:

2024 Mercedes-AMG C43 Review, Pricing, and Specs

The masterminds at Mercedes-AMG have been set loose on the C-class and have created the C43 sports sedan, powered by a 402-hp turbo four-cylinder powertrain.

www.caranddriver.com

BTW - go Rams. Lol...

 

[Slip_Angle]

Here is a c43 AMG 2020 (385 HP), right around the same horsepower and torque as the G70; matter of fact, this exact car is what the G70 primarily competes with. You can easily notice how direct precise the DCT shifts vs The G70 standard 8 speed auto.

..and it's slower than the G70

 

[Slip_Angle]

I have no problems with the G70 transmission for everyday use and having some fun. It seems good to me but yeah, I'm sure it could be better. TCU tunes seem to really make a difference with it, so from what I understand it's mostly a programming thing.

 

[KusaKusa]

I'm not sure what your specific gripe is with the transmission. Looking at the initial post, it breaks down to 3 things: half of it complaining how bad it is with no specific issues, last half talking about RPMs, and one side comment about granny shifts. For the point about the G70 going down to 4.5k RPMs with shifts... that's really a nature of the 3.3TT power band and the low redline. The 3.3TT makes max torque around 1.3-4.5k RPMs or something, but as a result of that, it starts losing torque around the high 5k RPMs. So shifting to a bit lower RPM isn't necessarily a suboptimal thing. For the low redline point, all the redline shift examples posted have dropped the RPMs about 1.5k per shift across the board give or take some. The difference with the Giulia QV example is that its redline is >7k RPM, and actually the C43 is also shifting to around 4.5k RPMs. So I'm not sure what you're talking about with that point.

Otherwise, yeah the transmission could be better but calling it granny shifts is a bit of an exaggeration. The shifts take a bit longer than the ZF, and the torque doesn't hit in a new gear completely and instantaneously like a dual clutch. Tangentially, I also think the Sport mode programming doesn't downshift far enough when slowing down and powering out of a turn, but hopefully the facelift Sport+ mode is the solution to that. But I think these are weaknesses due to compromise of 1) the transmission being a revised carryover of the G80 transmission and 2) aiming for a smoother more luxury experience than the full M/AMG speed. I wouldn't say it ruins the whole experience, especially since the 3.3TT is so powerful down low.

 

[MemberNoLongerAvailable]

^ as far as i am aware, the C43 does not have a DCT. It is a 9 speed slushbox - albeit a very good one from all accounts. I could be wrong, but i seriously considered one before i bought the G70 and the ones i drove did not have a DCT.

So people seem to hate the 6MT, and now the 8AT. I guess something has to be picked on...anywho, i got no skin in this 8AT game. No manual, no care. So i’ll sit on the sidelines for the rest of this thread.

C&D article with no mention of a DCT:

2024 Mercedes-AMG C43 Review, Pricing, and Specs

The masterminds at Mercedes-AMG have been set loose on the C-class and have created the C43 sports sedan, powered by a 402-hp turbo four-cylinder powertrain.

www.caranddriver.com

BTW - go Rams. Lol...

God I keep forgetting the C43 doesn’t have a dual clutch. It’s similar to it in almost every way when viewed through the lens of “performance” but it’s built up as a multi-clutch. And yes I too considered getting a vehicle from a brand more renowned with their craftsmanship and reputable with their performance claims; so I searched, I had always known of the Kia stinger and through that I found the G70 and I just thought “No one in the world will know what this car is, and I like that”. I’ve been stopped by walking pedestrians out of all and asked what car I’m driving and to my delight I’d just say “It’s a Genesis”, and they’d happily nod their head and smile all while wondering “what the hell is a Genesis, what car company is this”. I enjoy those moments.

anyway I got really off topic but I’m all for manuals as well, drove a GT350 once along with my uncle’s Challenger srt8 manual. The funnest part for me was learning to powershift, you feel like a superhero jerking your whole body just to bang through the gears. Had the G70 (3.3t) came with a manual I would have definitely bought it because I have no doubt that I or anyone else for that matter who knows a manual can outshift this vehicles 8 speed.

 

[MemberNoLongerAvailable]

^ as far as i am aware, the C43 does not have a DCT. It is a 9 speed slushbox - albeit a very good one from all accounts. I could be wrong, but i seriously considered one before i bought the G70 and the ones i drove did not have a DCT.

So people seem to hate the 6MT, and now the 8AT. I guess something has to be picked on...anywho, i got no skin in this 8AT game. No manual, no care. So i’ll sit on the sidelines for the rest of this thread.

C&D article with no mention of a DCT:

2024 Mercedes-AMG C43 Review, Pricing, and Specs

The masterminds at Mercedes-AMG have been set loose on the C-class and have created the C43 sports sedan, powered by a 402-hp turbo four-cylinder powertrain.

www.caranddriver.com

BTW - go Rams. Lol...

GO Pack GO

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Help support this site so it can continue supporting you!

 

[MemberNoLongerAvailable]

I'm not sure what your specific gripe is with the transmission. Looking at the initial post, it breaks down to 3 things: half of it complaining how bad it is with no specific issues, last half talking about RPMs, and one side comment about granny shifts. For the point about the G70 going down to 4.5k RPMs with shifts... that's really a nature of the 3.3TT power band and the low redline. The 3.3TT makes max torque around 1.3-4.5k RPMs or something, but as a result of that, it starts losing torque around the high 5k RPMs. So shifting to a bit lower RPM isn't necessarily a suboptimal thing. For the low redline point, all the redline shift examples posted have dropped the RPMs about 1.5k per shift across the board give or take some. The difference with the Giulia QV example is that its redline is >7k RPM, and actually the C43 is also shifting to around 4.5k RPMs. So I'm not sure what you're talking about with that point.

Otherwise, yeah the transmission could be better but calling it granny shifts is a bit of an exaggeration. The shifts take a bit longer than the ZF, and the torque doesn't hit in a new gear completely and instantaneously like a dual clutch. Tangentially, I also think the Sport mode programming doesn't downshift far enough when slowing down and powering out of a turn, but hopefully the facelift Sport+ mode is the solution to that. But I think these are weaknesses due to compromise of 1) the transmission being a revised carryover of the G80 transmission and 2) aiming for a smoother more luxury experience than the full M/AMG speed. I wouldn't say it ruins the whole experience, especially since the 3.3TT is so powerful down low

“and actually the C43 is also shifting to around 4.5k RPMs. So I'm not sure what you're talking about with that point.”
Precisely my point as stated, you helped me out there; I came off a bit as babbling a bit in my post but what you said is what I’m getting at. When the C43 shoots down to 4500RPM, it takes no time getting itself back up as evident by the video I posted and with tremendous help from it’s MCT performing lightening speed shifts. The G70 can be better in regards to this, I have no doubt that in-house 8 speed keeps it’s V6 on it’s knees. If it just had maybe say a DCT or a ZF8; this car in itself, would be an angelic automobile.

 

[MemberNoLongerAvailable]

I'm not sure what your specific gripe is with the transmission. Looking at the initial post, it breaks down to 3 things: half of it complaining how bad it is with no specific issues, last half talking about RPMs, and one side comment about granny shifts. For the point about the G70 going down to 4.5k RPMs with shifts... that's really a nature of the 3.3TT power band and the low redline. The 3.3TT makes max torque around 1.3-4.5k RPMs or something, but as a result of that, it starts losing torque around the high 5k RPMs. So shifting to a bit lower RPM isn't necessarily a suboptimal thing. For the low redline point, all the redline shift examples posted have dropped the RPMs about 1.5k per shift across the board give or take some. The difference with the Giulia QV example is that its redline is >7k RPM, and actually the C43 is also shifting to around 4.5k RPMs. So I'm not sure what you're talking about with that point.

Otherwise, yeah the transmission could be better but calling it granny shifts is a bit of an exaggeration. The shifts take a bit longer than the ZF, and the torque doesn't hit in a new gear completely and instantaneously like a dual clutch. Tangentially, I also think the Sport mode programming doesn't downshift far enough when slowing down and powering out of a turn, but hopefully the facelift Sport+ mode is the solution to that. But I think these are weaknesses due to compromise of 1) the transmission being a revised carryover of the G80 transmission and 2) aiming for a smoother more luxury experience than the full M/AMG speed. I wouldn't say it ruins the whole experience, especially since the 3.3TT is so powerful down low.

I’m not necessarily looking for an answer or a solution, I’m not asking for a tuner or some new aftermarket clutch plate(If anyone is in fact familiar with any AEM parts for the transmission, dear God let me know.), I’m just speaking my mind with only the intent to maybe push Genesis to further up their game on their selection for the G70’s transmission in the future, other than that I see nothing that leaves me in doubt about the vehicle’s potential.

 

[MemberNoLongerAvailable]

I have no problems with the G70 transmission for everyday use and having some fun. It seems good to me but yeah, I'm sure it could be better. TCU tunes seem to really make a difference with it, so from what I understand it's mostly a programming thing.

Well I’m new here, any videos or threads on this??. This place seems to be the Vatican of information in regards to Genesis performance so would love to see what some of you have in regards to transmission tunes or even projects for that matter.

 

[MemberNoLongerAvailable]

..and it's slower than the G70

I’d beg to differ. I’ve raced a C43 AMG (sedan) and could only stay maybe 5-6 feet from his taillight. However the coupes (which for some odd reason are heavier than sedan) I was able to take; obviously, he’d get me on the launches but I would creep back up. Me and the coupe got to about 100 right when I started to move ahead of him. My vehicle is 100% stock and I’ve owned it since last August and believe me when I say I’m fully aware of what it can and cannot do. I’ve raced just about whatever I bumped into on the road at the right time (Scatpacks, C6 corvette, SRT Jeep, tuned BMW 340i, Coyote Mustang), I didn’t win every single one but I won more than I lost and no loss was humiliating; there was 2 times I’ll say, a ZL1 and Trackhawk, to be honest I just wanted to hear them in action so I’d make it look like I was on their tail and they’d take the bait which let me hear those beautiful v8 sounds supercharger whines.

 

[Slip_Angle]

I’d beg to differ. I’ve raced a C43 AMG (sedan) and could only stay maybe 5-6 feet from his taillight. However the coupes (which for some odd reason are heavier than sedan) I was able to take; obviously, he’d get me on the launches but I would creep back up. Me and the coupe got to about 100 right when I started to move ahead of him. My vehicle is 100% stock and I’ve owned it since last August and believe me when I say I’m fully aware of what it can and cannot do. I’ve raced just about whatever I bumped into on the road at the right time (Scatpacks, C6 corvette, SRT Jeep, tuned BMW 340i, Coyote Mustang), I didn’t win every single one but I won more than I lost and no loss was humiliating; there was 2 times I’ll say, a ZL1 and Trackhawk, to be honest I just wanted to hear them in action so I’d make it look like I was on their tail and they’d take the bait which let me hear those beautiful v8 sounds supercharger whines.

Interesting. I wonder how much the year of the particular c43 matters? The newer ones may be faster...? Were all your races from a dig? If you look at Car and Drivers 5-60, 30-50 and 50-70 numbers the G70 is faster but 0-60 is slower. I also watched a YouTube of the G70 beating a c43 in a Korean comparison test... But lots of factors I guess..

 

[Beefer]

^
I have beaten few several times stock...but this was 2 years ago.

The newer ones are 4.1 seconds I think...and I’ve beaten a few with my JB4.

 

[BadTrainDriver]

I’ve often wondered and hypothesized what a Veloster’s tranny swap to a G70 would cost and if it would indeed function properly.

Here's a little reading material to help you realize that what you're wondering would be impossible.

Transverse vs Longitudinal Engines: Which Is Better?

You’ve likely heard of transverse and longitudinal engine placements, but what’s the difference and when is one better than the other? We explain

www.carthrottle.com

 

[Husky]

I may be in the minority, but I'm totally happy with the tranny. It does exactly what I want when in sport mode, and shifts much faster than any auto I've ever owned (with one exception ). Any faster and it might be too hard core for a daily driver (and I challenge you to shift any faster with a manual). My 997 S PDK/DCT shifts faster in sport+ mode, but it's pretty intense/violent, wouldn't want that for my sedan. (And yes I'd much rather have a manual, even if it's a tick slower in the quarter. Who cares? It would be much more fun and engaging to drive, but they're scarce.)

 

[LoLaWy]

The transmission of the G70 is the worst thing about the car
Transmission behavior on daily driving is shit

 

[Beefer]

OMG...another genius post. WTF.