Body Roll and Wheel Hop

[LandOfConfusion]

I know there are some posts containing discussion on similar topics, but not one specific to these issues combined.

First off, I tend not to do many mods. The ones I do make are usually pretty minor. My 2.0 G70 Sport M/T is bone stock. As such, it does dot have the adaptive suspension.

Although I generally like the suspension setup, there are a couple of things that bother me. I’m wondering if there are solutions to these that will not sacrifice ride comfort and compliance. I can’t emphasize this enough. My last car had a setup that was great for cornering, acceleration, and braking. And it was brutally harsh over every surface except brand new asphalt.

The G70 has a bit too much body roll for my taste. I know I can reduce this with a beefier anti-sway bar. Questions: replace these on front, rear, or both? Will replacing them affect ride comfort at all?

Similarly, under heavy acceleration and losing rear traction, there is significant wheel hop. I imagine this is purely a function of spring rate, not dampening. Correct? If so, is there any solution that won’t affect ride comfort? What about less sticky tires? I know I’d be sacrificing cornering ability with less tire traction, but if that’s the best way of minimizing wheel hop without changing the spring rate, I’d be willing to consider.

Thanks in advance.

 

[joschneider]

From my understanding, bigger sway bars do not affect ride handling comfort beyond reducing body roll. Springs will be the thing that affects comfort. My only hesitation with aftermarket sways is that all of them need to be regreased every year or so to prevent squeaking. With some brands this is pretty easy to do, but I’m the type of person who doesn’t want to fuss with squeaks at all even if I can drive home and fix it. I can’t answer your question about wheel hop tho

 

[LandOfConfusion]

I probably should have done a bit more research on the wheel hop issue. For those of you interested, here’s a link to an article on the subject: Wheel Hop

I doubt I’m going to go the polyurethane bushing route. We’ll see. I know I’d lose some of the NVH management with the softer bushings.

 

[Toddasaurus]

On my last few cars, wheel hop seemed to be mostly fixed with firmer bushings in the control arms. I'm not aware of any aftermarket bushings for the G70, but HardRace does make aftermarket rear control arms and trailing arms, which do have firmer bushings, all while being even more articulate (ie pillow ball) than the OEM rubber bushings..

http://www.hardrace.com/VEHICLE_Search.asp?Car_Make=29&Car_model=333&Car_Type=621&x=16&y=5

I saw a rear differential brace from BMS for the Stinger, and it's possible it could fit on the G70, and it *might* help with wheel hop as well, though probably not as much as replacing those control arms.

 

[maxsilver]

Subframe collars very well may be of use for you to reduce the wheel hop you are experiencing. They won't worsen handling in any way, and will actually improve ride quality.

2019-2024 Genesis G70 3.3L Subframe Collars

The ATQ Subframe Collars are a must have on any Genesis G70. The product will enhance overall drivability of the vehicle. Customers will notice much better handling, less interior rattles, a smoother driving experience and improved steering. This product is very easy to install, and it is one of...

atqauto.com

 

[skroonigan]

Subframe collars very well may be of use for you to reduce the wheel hop you are experiencing. They won't worsen handling in any way, and will actually improve ride quality.

2019-2024 Genesis G70 3.3L Subframe Collars

The ATQ Subframe Collars are a must have on any Genesis G70. The product will enhance overall drivability of the vehicle. Customers will notice much better handling, less interior rattles, a smoother driving experience and improved steering. This product is very easy to install, and it is one of...

atqauto.com

These are for 3.3TT only... curious as to what is specific on the 2.0t vs 3.3tt regarding the rear end.

I did a similar mod on my Charger (Charger's have a similar issue with wheel hop and the way the rear subframe is mounted it allows a decent amount of movement to smooth out the ride) and it actually made a pretty significant improvement on body roll from the rear end with a noticeable increase in NVH(but worth it, IMO). I'd probably recommend doing these collars before doing swaybars. I did swaybars first and then the equivalent of subframe collars on the charger and I prob would have just done the collars if I knew ahead of time. I gotta get more seat time in the G70 when it's not cold as shit out to figure out if I wanna do the collars or not.

Swaybars will affect ride quality, but in very specific scenarios (mid corner bumps will upset the car more, going into and out of steep driveways will be rougher), not overall like different springs. You will get a more noticeable like see-sawing effect when you hit a bump on one side of the car, makes the car start to feel more like a solid axle if that makes sense.

 

[canucklehead604]

i

From my understanding, bigger sway bars do not affect ride handling comfort beyond reducing body roll. Springs will be the thing that affects comfort. My only hesitation with aftermarket sways is that all of them need to be regreased every year or so to prevent squeaking. With some brands this is pretty easy to do, but I’m the type of person who doesn’t want to fuss with squeaks at all even if I can drive home and fix it. I can’t answer your question about wheel hop tho

^ i agree that for straight ahead compliance you won't see much impact from going with thicker aftermarket sways. overall ride harshness may be increased slightly since the overall suspension will now be a bit stiffer, but straight line won't see much change.

to me, a proper set of aftermarket sways is one of the quickest, cheapest mods that actually make meaningful performance improvement. very high bang-for-buck quotient. i am certainly considering this for my 6MT G70 - i agree the body roll is greater than it should be given the sport-inclined suspension tuning.

depending on who you go with, bushing squeak may not be an issue. some brands have grease zerks (hotchkis?), others don't. i used eibach sways on my last car with poly bushings and no grease zerks. i had to re-grease after 6-7 years of driving enjoyment...a small price to pay fot eh dramatic handling improvement.

 

[joschneider]

i


^ i agree that for straight ahead compliance you won't see much impact from going with thicker aftermarket sways. overall ride harshness may be increased slightly since the overall suspension will now be a bit stiffer, but straight line won't see much change.

to me, a proper set of aftermarket sways is one of the quickest, cheapest mods that actually make meaningful performance improvement. very high bang-for-buck quotient. i am certainly considering this for my 6MT G70 - i agree the body roll is greater than it should be given the sport-inclined suspension tuning.

depending on who you go with, bushing squeak may not be an issue. some brands have grease zerks (hotchkis?), others don't. i used eibach sways on my last car with poly bushings and no grease zerks. i had to re-grease after 6-7 years of driving enjoyment...a small price to pay fot eh dramatic handling improvement.

I’m interested in your experience with eibachs, you say they only needed regreasing once in like 6 years, how many miles did you put on it? I only ask because I’ve done some research and people are stating that it’s about a year at most they can go before they start getting squeaks. Every 6 years would be worth it to me if I could do something to get them to that mileage

 

[canucklehead604]

^ good point. i probably put on 35-40k miles in the 6-7 years. low mileage

 

[ncrashb]

I'd recommend thicker sway bars, subframe rigid collars (UNIQ is producing sets in Canada later this year), and upgraded swaybar endlinks.

I'd only recommend changing springs if you want to lower the car 1" but it will make the ride much more stiff and almost bouncy.
Proper coilover suspension would be the only way to improve handling and ride quality while also lowering the car, if you desired.

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[Kraig Wilkinson]

I'd recommend thicker sway bars, subframe rigid collars (UNIQ is producing sets in Canada later this year), and upgraded swaybar endlinks.

I'd only recommend changing springs if you want to lower the car 1" but it will make the ride much more stiff and almost bouncy.
Proper coilover suspension would be the only way to improve handling and ride quality while also lowering the car, if you desired.

Larger diameter sway bars IMO are the best bang for your money. Helwig make nice ones for trucks and Suburbans not sure if they make ones for the G70. Does anyone know if you have to disassemble a lot of the suspension to replace the sway bars?

 

[joschneider]

Larger diameter sway bars IMO are the best bang for your money. Helwig make nice ones for trucks and Suburbans not sure if they make ones for the G70. Does anyone know if you have to disassemble a lot of the suspension to replace the sway bars?

Rear sway bar - installation

according to them, its not that hard. couple hours at a shop, or several hours and beers/cursing at home

 

[Kraig Wilkinson]

Rear sway bar - installation

according to them, its not that hard. couple hours at a shop, or several hours and beers/cursing at home

Yeah I suppose. I like nice fat sway bars, but on the other hand I turned into a not broke dont fix type of guy!