Cross winds at high speed (un)stability

[cjd]

Originally Posted by Mr Nerd

I have all of these, with the exception of a rear diffuser.

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I don't know that it helps with stability much, but a proper diffuser will change from lift to a touch of downforce in the back. I'm​ confident it would help at least a little.

[Mr Nerd]

Originally Posted by cjd

I don't know that it helps with stability much, but a proper diffuser will change from lift to a touch of downforce in the back. I'm​ confident it would help at least a little.

I have been anxious to get one but I am the type of person who does way too much research for such simple things.

To you have one? Do you have a recommendation?

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[JDM4E]

Originally Posted by ls1ac

I was referring to the OP that had modded his car and was having problems in Europe with the car darting right and left in the wind.

The car was dealer stock, I have never said I modded anything. Our specs include OEM underbody panels and that MY2017 rear spoiler. It is really weird.

EDIT:
I have found this post with an interesting thought: http://www.ft86club.com/forums/showp...0&postcount=17

P.S.: I have a theory that not that much people experiencing this just because not much people travel at those high speeds? The faster you go the worse this is, so perhaps not much high speed driving with combination with wind makes this topic a bit underground?

EDIT2:
I just found on UK forum people noticing this too, with no solution. We are not alone Check this out:
http://www.gt86ownersclub.co.uk/foru...topic3573.html

[cjd]

Originally Posted by Mr Nerd

I have been anxious to get one but I am the type of person who does way too much research for such simple things.

To you have one? Do you have a recommendation?

Sent from my LGLS991 using Tapatalk

Velox, Driveway labs... Others out there with less shared data. Not all exhausts always fit, etc. so you'll have to dig in a little still, I think.

[ls1ac]

sorry, I stand corrected.
I did not realize that yours came stock with different options.
again, not sure the two posts experienced what you were experiencing what you had happen at high speed. did you notice the instability at high way speeds? you seemed to say it was a high speed related problem.
I was only trying to help with a possible place to start looking, based on personal experience. we are all aware that all cars experience affects of strong crosswinds it is really a matter of how much.

[Gunman]

Originally Posted by Mr Nerd

Being in Europe isn't going to make a difference. I suffer from all of the same problems in America. 😞 And I have opted for all of the solutions in this post. So whether I am the OP or not, what is your point?

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Side splitters should help with cross wind, as they are intended to work when the car is in yaw. I noticed less buffeting around tractor trailers since I installed mine. Keeping the air from getting under the car is key.

[JDM4E]

I have just found another thread about this
http://www.ft86club.com/forums/showthread.php?t=20857
Still wondering what the hell is going on and how to make this car stable...

[Vracer111]

Originally Posted by JDM4E

I have just found another thread about this
http://www.ft86club.com/forums/showthread.php?t=20857
Still wondering what the hell is going on and how to make this car stable...

Still on the stock low-rolling resistance made-for-fuel-economy tires? That's what it was for me....proper performance tires cured the high speed wandering it liked to do.

[OND]

I'd second the alignment suggestion. Our cars are already pretty good aerodynamically, with low Cd, small surface area and a functional rear spoiler.

If you want a 100mph highway cruiser, this car is probably not the best starting point (light, short, stiff susp.), but I'm pretty sure a good amount of toe in would make it much more stable on the highway, at the expense of low speed maneuverability.

[JDM4E]

In the thread I mentioned there is an another theory and that is soft bushings...