Scary Handling - Page 2
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Thread: Scary Handling

  1. #11
    Intermediate Soul FLHamster's Avatar
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    Quote Originally Posted by suv_drift View Post
    I may or may not understand what is your problem. But from a point of view of the car. This isn't a track and planted to the ground coupe.
    Problem occurs more in the 2011. The 2012 that my dad had before (and I test rode) was a lot better with the bounciness of the rear. (both with 16" wheels)
    The 2016 that he has now with 18"s.... Idk. But the rear tends to wobble more harsh than even my 2011. Mostly due to have stoxk air pressure on them.
    Now that I have the stock 18" on my 2011 soul and the air up to 37~38 psi The ride is a lot firmer and safer than with stock 35 psi (or 33... I don't know the stock air pressure)
    So play with the psi. Have a good set of rear tires on the back (trust me. I had scary moments with bald tires) and well on the front. Or replace the rear shocks. The decision is up to you as the driver.
    Well, actually the tire pressure posted on the door post (at least on my 2013) is 33 PSI.

    That may be great to give a nice soft and squishy ride for grandma, but for the guy who is a little bit aggressive in his driving style and wants good performance, like cornering, 33 PSI just won't cut it.
    I'm very aggressive in my own driving style, and even with my tires set at 35 PSI, it's still too soft.

    When I bought my Kia Soul, and got her home, I checked everything including the air pressure in all four tires. They varied from 42 PSI to 45 PSI. No wonder that it handled so well on my test drive, and when I test drive a car I TEST DRIVE THE CAR!!! I just set all four tires to 42 PSI, and even though I've tried other pressures, I find that my Soul handles and performs best at 42 PSI.

    If you're ever going to drive a car aggressively, during the test drive is the right time. You need to know exactly what the car can do, like in an emergency situation, when you have to make a split-second course correction to avoid an obstacle in the road, like a tire or huge pot hole.

    You don't have to be a Mechanical engineer, but even someone who passed their High School physics class, will understand why a 15" wheel will be more efficient and stable than an 18" wheel. The way I have my car set up, with my 15" steelies and good tires, inflated to 42 PSI, my Kia Soul handles more like a sports car than a SUV. It doesn't wiggle or wobble when I make a turn...it just goes where I point it, without complaint.

    Some will say that more air in a tire makes it ride rough. But, I've always been willing to give up a soft ride for better/safer performance and better MPG. I do drop my tire pressure down to 20 PSI when I'm OFF ROAD and driving in soft sand. That simple act at least Doubles my traction.
    Years ago, when I lived up North, I'd do the same thing when I had to drive in snow and ice.

    And, don't take your foot off of the gas pedal when cornering...go into the corner easy and then accelerate out of it. Let the engine PULL you through the corner...that's the real value of FWD.
    I had to learn that lesson, years ago when I bought my first FWD car, a 1966 Olds Toronado.
    For a young guy who had never driven a FWD car before, that was one huge learning experience.

    Happy Trails,

    FL Hamster

    PS: I'm sorry this post ran so long, but it's a subject that is near and dear to my heart.
    A man with experience is never at the mercy of a man with an opinion or an argument.

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  3. #12
    Elder Soul conwelpic's Avatar
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    FLHamster - you have some good points, but the 42psi tire pressure you suggest is pushing the maximum pressure limit of the tire (its stamped on the sidewall of the tire) which I think is 42-44 psi. This pressure is used when they ship the vehicle from the factory to the dealership.

    However, tire pressure can increase from driving depending on temperatures and speed, so if you set it at maximum pressure where is the excess to go? That sounds very dangerous and you could end up blowing the tire. If that kind of pressure was ideal then it would be stamped on your door post. Mine is stamped 33 psi, I generally run 35 psi, (you can please yourself what you do) but absolutely no way I would every push it to 42 psi - unless I was going to store it for six months.

    "What happens if you inflate your tires to the max PSI?
    The handling characteristics change
    Since tires inflated to the max cant give as much on the sidewall, you might see superior cornering, but it could be at the risk of your braking threshold. One quick corner and your back end could slide out.
    The life of your tire decreases.
    When your tires are inflated too much, the rubber rounds out at the top of the tire when youre driving, and the center will quickly wear out. Youll also reduce your traction and you could even cause a blowout."

    https://www.kaltire.com/the-right-ti...isnt-the-best/
    Last edited by conwelpic; 02-12-2017 at 05:13 PM.
    2.0L, leather, power-folding mirrors, cooling glove box, auto climate, smart key/push-button start, heated steering wheel

  4. #13
    Junior Soul
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    Quote Originally Posted by conwelpic View Post
    However, tire pressure can increase from driving depending on temperatures and speed, so if you set it at maximum pressure where is the excess to go? That sounds very dangerous and you could end up blowing the tire.
    The tire manufacture takes that increase into consideration when they put the maximums on the tires, that is why the Max tire pressure stamped on the tire is always listed as "cold" pressure.
    FLHamster likes this.

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  6. #14
    Intermediate Soul FLHamster's Avatar
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    Not only that, but what they call "Max Pressure" should actually be "Max SAFE Pressure". It's a very conservative rating, not the point at which the tire will explode.
    On most of our tires (every one I've seen) the Max Pressure is listed on the tire is 45 PSI.

    That actually means that it is safe to run your tires at 45 PSI, all day, every day, without risking damage to you or your car.
    When I bought my car, all four tires were at 42 PSI to 45 PSI. And, that was right from the dealer. Go Figure!

    I am a member of a 'High Miler' forum and many of those guys run their tires at 50+ PSI, for better mileage.

    I actually tried the 33 PSI as it is written on the door post. But the car was not really stable when taking corners at speed, and felt like I was going to loose control. (I never actually did) So I put all four tires back to 42 PSI and regained stability, performance and good MPG. It's hard to argue with success! Eh? (but some will try)

    Tire pressure can be custom tailored to where and how you're driving and in what kind of road conditions.
    Out on the paved roads, I use 42 PSI as my every day pressure. But....when I'm driving off road in sand or mud, at less than 20 mph, I drop my front tire pressure down to about 20 PSI, which at least doubles my traction. That works best when I have tires that inherently have good traction, and the ones I have on the front wheels now, have GREAT traction.



    I can't explain that weird tread pattern, but I CAN say that "IT WORKS", everywhere. And, at just $68 ea. they didn't break my bank.

    Cheers Mates and Happy Trails to you

    FL Hamster
    A man with experience is never at the mercy of a man with an opinion or an argument.

  7. #15
    Junior Soul zerogee's Avatar
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    That tread pattern strongly resembles the treads on these all weather snow rated tires I had on my last car. Hankook Optimo 4S. Way better in snow than all seasons but not as good as dedicated winter tires. Much better wet traction than some all seasons. Less wear over winter tires but more wear than all seasons. Louder than all seasons but quiter than winters. My car was on its last legs and needed both summer and winter replacements. I didn't want to put that much money into it so these were a good comprise.

    I can see how this type of tread would work well for your application too.

  8. #16
    Elder Soul The Sradiator's Avatar
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    Though your 2013 is a civil critter (we have a 2012) it's limitations are easily reached, especially in the suspension dept!
    The symptom you are experiencing, often called "stepping out" is something I have experienced from day 1.
    It's inherent and the best way to avoid it is to not overtax your suspension or your car.
    Bumpy turns will often have your soul seeking purchase and looking for stable ground to track on.
    I chose to go with a 60 series tire over the stock 55's and that seemed to help a bit.
    Concessions are made and the learning curve continues and most feel the soul is evolving well, though it's limitation are evident as you press its capabilities and its accelerator pedal!
    Are We Not Men?

  9. #17
    Senior Soul Soul Rush's Avatar
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    Stepping out with these small stiff suspensions is just normal.
    I adjusted pretty quick to my Soul,
    Now I have a few choice freeway ramps that I hit at high speed just to see how far I can step it out !
    GeoSoul likes this.
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  10. #18
    Elder Soul GeoSoul's Avatar
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    Quote Originally Posted by Soul Rush View Post
    Stepping out with these small stiff suspensions is just normal.
    I adjusted pretty quick to my Soul,
    Now I have a few choice freeway ramps that I hit at high speed just to see how far I can step it out !
    Haha...me too Soul Rush. Like the HR-V & Mazda CX-3, the Soul's CTBA (coupled torsion beam axle) rear suspension steps out a bit, but totally normal for this class of vehicle.

    I have one freeway offramp that goes from 60 down to 15 and sharp hooks right. With a stick its a blast downshifting and hanging the corner (the Soul holds it so well), but the corner road surface has damage that apparently after years still doesn't warrant repair. It's just enough to make the rear step out (just a bit).

    Come to think of it my Acura with independent rear didn't handle it much better!

  11. #19
    Elder Soul The Sradiator's Avatar
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    Are We Not Men?

  12. #20
    Intermediate Soul FLHamster's Avatar
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    I agolopize for seeming dense, but what on earth is "stepping out"? That sounds like a dance step.
    I've just never heard that expression before, in relation to a car's handling.

    I've added maybe 200+ pounds of weight to the back end of my 2013 Soul. I'm adding up the weight of my trailer hitch, which by the way does stiffen up the rear of the car and keeps it from doing the Rumba, then I have to add my full size spare tire, small floor jack, and other tools.

    If the rear tires are only inflated for a nice Soft, Squishy ride, which grandma would like, side sway is probable, on curves.

    But with all four of my 215x65x15R tires at 42 psi, my Soul handles like a sports car. Honestly!

    Like most car makers, Kia sets their Soul up for the average buyer, a middle to old age driver. It definitely takes a little tweaking for the younger or more aggressive driver.

    At 55k miles, and many of those OFF Road, I still see NO indications that I need new shocks or struts.

    Cheers Mates, and Happy Trails to you!

    FL Hamster
    A man with experience is never at the mercy of a man with an opinion or an argument.

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