2015 Aftermarket Wheels?

[powerslide]

Hyundai's awd is not a full time 40/60 split. It is an electronically controlled, continuously variable system that adapts real-time to road conditions (wheel spin/steering, brake, throttle position). It sounds similar to the system subaru was using on their automatics around the turn of the century. I'm sure it is an evolved version as the drive mode button changes the "initial torque" split, etc.

 

[keithl]

Hyundai's awd is not a full time 40/60 split. It is an electronically controlled, continuously variable system that adapts real-time to road conditions (wheel spin/steering, brake, throttle position). It sounds similar to the system subaru was using on their automatics around the turn of the century. I'm sure it is an evolved version as the drive mode button changes the "initial torque" split, etc.

Not according to what I am reading:

https://www.hyundainews.ca/ProductArticle.aspx?cont_id=283

HTRAC is controlled in part by the Genesis’ new drive mode system. With the vehicle set in “Normal” mode, HTRAC defaults to a 40:60 rear-wheel biased torque distribution. The system can shift as much as 90 percent of engine output to the front axle in slippery conditions or 100 percent to the rear at higher speeds for reduced driveline drag and improved fuel economy. When the vehicle’s “Sport” mode is selected, HTRAC’s response is modified to counteract understeer and oversteer by sending power to the front or back as required. At speed in Sport mode, HTRAC gives Genesis a rear-wheel drive character by sending 80 to 90 percent of power output to the rear wheels.

 

[powerslide]

Not according to what I am reading:

https://www.hyundainews.ca/ProductArticle.aspx?cont_id=283

HTRAC is controlled in part by the Genesis’ new drive mode system. With the vehicle set in “Normal” mode, HTRAC defaults to a 40:60 rear-wheel biased torque distribution. The system can shift as much as 90 percent of engine output to the front axle in slippery conditions or 100 percent to the rear at higher speeds for reduced driveline drag and improved fuel economy. When the vehicle’s “Sport” mode is selected, HTRAC’s response is modified to counteract understeer and oversteer by sending power to the front or back as required. At speed in Sport mode, HTRAC gives Genesis a rear-wheel drive character by sending 80 to 90 percent of power output to the rear wheels.

That's almost exactly what I said. There was no mention of electronic control, but that can be assumed since you can change the behavior with the drive mode button. My main point is that the 40:60 is not "locked" or constant. It is a default or initial setting that changes as wheel slip dictates.

 

[powerslide]

That's almost exactly what I said. There was no mention of electronic control, but that can be assumed since you can change the behavior with the drive mode button. My main point is that the 40:60 is not "locked" or constant. It is a default or initial setting that changes as wheel slip dictates.

http://www.hyundaiproductinformatio...15_genesisSedan/genesisSedan_key_features.asp

" All-Wheel Drive (Available with all 3.8 Trims)



HTRAC® AWD System:*a world's first-utilizes an electronic transfer case with active torque
** control — torque can be 100% transferred to the front wheels via an electronically controlled
** multi-plate clutch

This design offers excellent stability, efficiency and a quick response to slippery conditions

Offers multi-mode setting with a higher torque distribution range than competitive vehicle
*** (this is linked to Drive Mode Select)

Torque vectoring can transfer power to non-slipping wheels*"

 

[Mark_888]

My main point is that the 40:60 is not "locked" or constant. It is a default or initial setting that changes as wheel slip dictates.

Maybe I am wrong, but I don't think anyone said the 40:60 is "locked" or constant. I don't know of any modern passenger car AWD systems that are locked in to a specific ratio.

 

[Mark_888]

I would be curious on what Hyundai states on their AWD, I know Audi for Quattro states all tires must be same size, even if you replace a trie they recommend all tires be within a very tight diameter tolerance so if one tire is excessive worn or newer than the others that is an issue. Since Hyundai's AWD is similar to Audi with a full time 40/60 split I suspect there are similar requirements.

Do you mean same as OE, or same F/R? I believe that the 2015 Genesis 5.0 V8 AWD sold in Canada has different wheels/tires F/R. Rear rims/tires are wider.

 

[keithl]

Do you mean same as OE, or same F/R? I believe that the 2015 Genesis 5.0 V8 AWD sold in Canada has different wheels/tires F/R. Rear rims/tires are wider.

I know with Audi they want all 4 tires pretty much identical so that diameter is exact. Quattro may not be as sophisticated as HTRAC to handle slight differences in diameter. Audi's documentation is very cautionary with diameter sizes being different can effect Quattro.

 

[keithl]

So again, I think Hyundai is missing an opportunity to market the AWD for handling as even in dry weather having all 4 wheels drive the car is better.

 

[Mark_888]

I know with Audi they want all 4 tires pretty much identical so that diameter is exact. Quattro may not be as sophisticated as HTRAC to handle slight differences in diameter. Audi's documentation is very cautionary with diameter sizes being different can effect Quattro.

I am assuming that the Audi Quattro system needs to know the diameter of the wheels/tires to work properly, since it constantly measures the rotational speed of each wheel. If all four OEM wheels are identical, they should stay that way.

It may be the same as the HTRAC system, except that on the 5.0 V8 the rear wheels are wider (and maybe slightly different diameter). So long as the HTRAC system knows that, it will work fine. If someone upsizes their wheels on the HTRAC and the diameter is not the same as OEM (or maybe even if weight not the same), then it might have the same issues as the Audi Quattro system in being different than OEM.

 

[Mark_888]

So again, I think Hyundai is missing an opportunity to market the AWD for handling as even in dry weather having all 4 wheels drive the car is better.

That is possible. But have you seen the MPG numbers for 5.0 V8 HTRAC?

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[powerslide]

Maybe I am wrong, but I don't think anyone said the 40:60 is "locked" or constant. I don't know of any modern passenger car AWD systems that are locked in to a specific ratio.

I may have have misunderstood, but keithl used the term "full time" which I interpreted as locked or fixed. His original quote is below

" Since Hyundai's AWD is similar to Audi with a full time 40/60 split I suspect there are similar requirements."

 

[Mark_888]

I may have have misunderstood, but keithl used the term "full time" which I interpreted as locked or fixed. His original quote is below

" Since Hyundai's AWD is similar to Audi with a full time 40/60 split I suspect there are similar requirements."

Some AWD systems default to 100% front or 100% rear until drive force is needed to other wheels. I think he meant that the HTRAC drive is applied to all four wheels even in default mode on dry and even pavement, not that it is always locked at 40/60.

 

[J.bos@bell.net]

I dont think I'll be buying any new wheels in the 1st two years. other house expenses will outweigh that "want". Just hadn't seen much on the aftermarket wheels for the '15 Genny.

Have you looked at TSW Wheels? i like the Parabolicia. http://www.tsw.com/alloy_wheels_parabolica.php

 

[ifli43]

I would suggest that most wheel/tire changes are for appearance rather than handling improvements which is fine if that is the object. It certainly enhances the look of the car. Regarding performance, most modifications increase weight and without a corresponding change in power there will be degraded overall performance. Putting on larger rims with wider tires will make a weight difference. I recall the prophetic words of Ken Tyrrell who built a formula one race team, "carrying an extra pound of weight over the race distance will cost me fuel". Your car performs better with low fuel and 4 empty seats. The type of tire can indeed make significant difference to the cars handling without too much weight change.

 

[FlySwatter]

Man, am I ever boring. I think the factory wheels on my Black 2WD Ultimate are the best looking wheels I've ever owned, and match the car perfectly. I wouldn't even consider swapping them.

 

[ckon]

Man, am I ever boring. I think the factory wheels on my Black 2WD Ultimate are the best looking wheels I've ever owned, and match the car perfectly. I wouldn't even consider swapping them.

I'm also VERY satisfied with the stock wheels. To me they're the best stockers on any car I've owned so far.

 

[Nikgen]

I'm also VERY satisfied with the stock wheels. To me they're the best stockers on any car I've owned so far.

+ 1

 

[Ernie3647]

I'm also VERY satisfied with the stock wheels. To me they're the best stockers on any car I've owned so far.

+2

 

[faaiz66]

[ame="http://www.youtube.com/watch?v=DuwSwW0ZioE"]2015 Hyundai Genesis - YouTube[/ame]


Heres a video I found on youtube. Makes his Genny 10 times more beautiful!! 22inch Impulse 88 rim

 

[NSXNEXT]

2015 Hyundai Genesis - YouTube


Heres a video I found on youtube. Makes his Genny 10 times more beautiful!! 22inch Impulse 88 rim

Seriously? 22s look ridiculous. There is virtually no sidewall on those tires.
That wheel in 20" would look great but 22s just look silly.