5.0 swap 2023 G90

[turnne]

It looks to me like Hyundai/Genesis focus their resources on what matters, to maintain a high bang-for-your-buck ratio and to keep costs down. The new G90 has tons of great features and lots of tech, but is very light on gimmicks - which you'll find plenty of in the S Class, A8, 7 series, etc.

If you drive a current V8 G90 back to back with a V6 G90... there is a difference, but it's minor. CAFE is tough and getting tougher over time, V6s are more than adequate, with the e-supercharger they respond better than V8s do, and having one engine simplifies manufacturing and engineering a lot. Unfortunately for those of us who like V8s, they're going away and it's inevitable. You might be able to hold on for a few more years if you want to pay up for a Mercedes/etc., but even Mercedes has started removing the V8 from a lot of their expensive cars over the last 1-2 years.

The fact is, Hyundai has chosen to get rid of the V8s now. No amount of complaining will bring it back. Don't like it? Too bad. That was a bit harsh, but it's the truth.

And buying one of the German cars, or a Lexus if they still have V8s on the LS, will be much cheaper than retrofitting a V8 into the new G90.

Why is it that half the threads on this forum end up turning into massive flame wars / arguments about a completely unrelated topic? The OP was asking if you can put a V8 into the new G90, the answer is (basically) no. End of thread. We're not going to be able to convince the "luxury cars need V8s and anything less is for peasants" people that V6s are fine, and they're not going to be able to convince us that V6s are a plague upon the car market and that whoever decided to put V6s into luxury cars needs to burn in hell. No point in wasting your time on this.

At the end of the day...the V6 is probably just fine for the G90 crowd
Seeing that most of them sold are V6's ..even when V8's were available..speaks to that
The G90's " real competitor" , in my opinion the Lexus LS, only has a V6 available as well

If Hyundai had been serious about continuing a V8..it needed to be reworked anyway. It was basically unchanged since 2011

Like I said before , the German sedans, in my opinion, are a different market/buyer
The V6 is just fine for the G90

As for the original question about dropping a V8 in a G90. Anything is possible for enough dollars, but that is most certainly a HUGE investment that would net you nothing in resale value

Warren

 

[John M]

Its more about low end grunt and smoothness...Not a high revving /peaky power train

You proved my point for me. The 3.5T delivers power over the entire rpm range while the 5.0 v8 IS peaky / high revving! You don't see its peak torque until 5000 rpm. Peak horsepower happens at 6000 rpm. These numbers are precisely what you think the turbo engine does but you have it backwards.

The 3.5T brings all 390 torque (more than the v8) at just 1300 rpm and continues smoothly to its 5800 rpm horsepower peak. Which engine is "peaky" and "high revving" now? Reviews of the GV70 and GV80 call it "silky smooth" - something I don't deny the 5.0 is as well but today's v6 engines aren't like the ones from the 80s.

I have almost every engine in the current Hyundai product lineup yet somehow I'm still wrong, or just "don't understand" luxury. Whatever. Just know that European car owners think we're all stupid hicks who don't "understand luxury" because our cars are Korean.

 

[turnne]

You proved my point for me. The 3.5T delivers power over the entire rpm range while the 5.0 v8 IS peaky / high revving! You don't see its peak torque until 5000 rpm. Peak horsepower happens at 6000 rpm. These numbers are precisely what you think the turbo engine does but you have it backwards.

The 3.5T brings all 390 torque (more than the v8) at just 1300 rpm and continues smoothly to its 5800 rpm horsepower peak. Which engine is "peaky" and "high revving" now? Reviews of the GV70 and GV80 call it "silky smooth" - something I don't deny the 5.0 is as well but today's v6 engines aren't like the ones from the 80s.

I have almost every engine in the current Hyundai product lineup yet somehow I'm still wrong, or just "don't understand" luxury. Whatever. Just know that European car owners think we're all stupid hicks who don't "understand luxury" because our cars are Korean.

I have driven both iterations many many times( in AWD iterations) and the V8 is a smoother power delivery

I am not sure what point I proved for you?

No one is revving a G90 to 5000 RPM's.....

Do you have metrics to share on smooth power delivery?

I am going to guarantee you that its very easy to dicern which of the two you are driving when you pull away from a red light

As far as that whole blurb about owning almost Hyundai engine
I dont understand your point
What does that have to do with luxury?

Warren

 

[YEH]

So you saying that the new Mercedes S class buyer is not looking at the G90?..OK, I have said for years

But being that most of the G90's sold have been 6 cylinders anyway, its a moot point, and clearly its not really an issue with the market looking at buying it

While not common, one S560 lessee is seriously considering the new G90, and another had leased the old G90, but when that lease was up, switched to the LC 500 (so could have afforded an S Class if had stayed with a flagship sedan) - so, it does happen (likely will be more common with the new G90).

In NA, the take rate for the V8 was close to 50/50 with Canada only offering the V8 (had to special order the 3.5TT).

For those who want more power/smooth delivery, there likely will be the supercharged MHEV and full electric variants of the G90.

Sure, there will be those still wanting a TTV8, but those sales will continue to decline as more buyers switch to hybrid or full electric power.

 

[Aquineas]

Or you buy a JB4 box for the 3.5T and make more horsepower and torque than the v8 could ever hope to have made. Total cost: about $700.

Zero wire splicing, totally removable if needed, and the platform can make well over 400 horsepower and torque to the wheels without touching a single piece of hardware. You would never miss the v8.

I've owned the V8 and I currently own a 3.3TT. I've also ridden in a JB4 equipped V6. What many don't realize is it's not a question of power, it's a question of NVH and refinement.

 

[Backslack]

Okay, so as many of y'all know, Genesis is ditching the beloved 5.0 v8 in the upcoming 2023 G90 in favor of a 3.5tt v6. So I thought about it. I love the interior drive and features of the new G90. But what if we could swap it for a 5.0 v8 and 8 speed trans from a 2022? Thoughts? If it had a v8, it would be one of the best cars in the segment.

If you want a V8 just buy the current G90 before it goes away next year.

The big unknown regarding the 2023 G90 is whether that newfangled MHEV supercharged version of the TTV6 will end up in the SWB version that gets brought overseas. Spec-wise, that appears to be the replacement for the NA V8.

So far in South Korea the new engine is only in the LWB version that won't make it here, but Genesis knows American buyers crave more power than their domestic buyers in South Korea. Most people in South Korea buy the G90 equipped with the old 3.8L V6 which isn't even sold here.

 

[SuperKing]

I've owned the V8 and I currently own a 3.3TT. I've also ridden in a JB4 equipped V6. What many don't realize is it's not a question of power, it's a question of NVH and refinement.

I'm glad someone gets it... lol... There's a reason why Genesis gave the G80 sport a V6TT and the top luxury model a V8. It wouldn't be much of an issue if the new cars had a straight 6 instead of a V6. My guess it's because of cost cutting, they can fit the V6 block sideways in cars like the Palisade and Telluride.

 

[John M]

I am going to guarantee you that its very easy to dicern which of the two you are driving when you pull away from a red light

Then you must be aware that the turbo v6 pulls away with far less drama - just a slight whir of the turbos and you breeze away. The v8 is a dinosaur by comparison.

I am not sure what point I proved for you?

No one is revving a G90 to 5000 RPM's.....

That was my point! Anybody being that obtuse has to be doing it on purpose. You clearly can't understand how numbers relate to perceived "refinement." The car that makes 390 torque when you start to press the pedal will be far SMOOTHER and more REFINED than the one that you have to give it the spurs to reach the same amount of thrust. It's why Rolls Royce and Bently used huge pushrod v8s for most of the last century and stuck to turbos when going to a more modern engine. Opulence is conveyed by a bottomless well of torque at low rpms, something the turbo delivers where a DOHC v8 lacks.

My family owns every engine being discussed here. What I write is not theory. It's not based on numbers or magazine review. The cars are in the driveway right now! I guarantee my automotive experience is on par with anyone else's.

 

[Ninja400]

That was my point! Anybody being that obtuse has to be doing it on purpose.

The guy's clearly talking about NVH refinement, not power delivery. It's very obvious and indisputable that V8 is better than V6 for that.

For what it's worth, I prefer NA power delivery over turbo. It's smoother and more natural feeling since it progressively gives more power and torque as it revs up. And there's no turbo lag or sudden burst of power once the turbo comes to life. It just gradually gives you more 'go' as you use more throttle.

 

[SuperKing]

Not to mention the other problems that boosted motors have as well. My 2011 Sonata was my 3rd and last turbo car. I figured, it was 20 years newer than the MR2 Turbos I've been driving the previous 10 years. All the problems with turbos should be figured out by now... nope... in the 5 years that I've had my Sonata, the wastegate got stuck open 4 times leaving me with no boost/no power. At least none of the couplings popped off with the Sonata. I've had my fill of turbo engines, I went back to big and NA with the 2015 Genesis when the warranty ran out on the Sonata.

15 years and 3 cars, I think I've given turbos a fair shot...

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