Suspension and handling issue......

[GreenGuardian]

So I'm driving down hwy 290 here in Houston yesterday and it suddenly occurred to me that there was no one else around for a few miles, which is very strange in a city with four million people. So, what does one do in a situation such as this when driving a 435hp Mustang GT! Easy answer right, so I reach 100+mph rather quickly and realize that my steering feels very loose and I'm starting to get the out of control feeling. The steering just does not feel like it's supposed to, it was way to loose for me to even think about going any faster so I had to back off the throttle a bit to where I felt more in control. It felt like I had to much play in it and the car just wouldn't track straight. So far I just have the Steeda subframe braces, BMR performance lowering springs, Steeda alignment kit, and BMR differential bushing kit. I do however have the BMR front subframe brace still in the box waiting for a day to be able to install it. For the guys who got whippled I'd like to know what y'all do to your cars so they can handle 600+ horsepower. And for the guys like me who haven't done any engine mods what y'all do to your suspension and steering to make it be able to control the horsepower. Do I need the bumpsteer kit?

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[TheHorse13]

If your steering is loose at 100MPH, something is wrong and needs to be fixed before you consider more horsepower.

 

[onosqv]

Just ruling out the obvious: you've had a proper alignment after installing all those parts, correct?

 

[T-S550-X]

Just ruling out the obvious: you've had a proper alignment after installing all those parts, correct?

What he said, plus make sure all your bolts are in place and tight. Something sounds very off.

 

[Moetoe]

I hit 100 daily getting on the highway and I have done 145 In Michigans UP and it felt great

 

[GreenGuardian]

Just ruling out the obvious: you've had a proper alignment after installing all those parts, correct?

Yes, I took the car to my ford dealership and had it aligned, everything is where it is supposed to be. I was however told by the guy at the dealership that I need to buy a new front right tire, he said that the car is aligned (have the printout) but there seems to be an issue with the belt inside the tire, he called it a radial pull. Now, I've heard this term before from a few other people and thought it was a load of crap so i never paid much attention to it until now. Have y'all heard of this before?

 

[Martman GT]

Yes, I took the car to my ford dealership and had it aligned, everything is where it is supposed to be.

This one may be tricky to address. Something sounds off with your car, but a dealer wont address it because it will be "too unsafe" to try and re-create your conditions where the issue is occurring. Your car should feel plenty stable when you hit those speeds IN MEXICO.

 

[tcman54]

Dude, something is certainly off in your car, I have had my ecoboost at 120mph and the sucker is rock solid, in fact at higher speeds my car feels more solid than at lower speeds, figure that one out, lol.

Terry :cheers:

 

[ero 5.0]

One of your springs or bushings could have not set right. I would take it back to where you had em installed and have em take a quick peak. It could be any number of issues.

 

[OracleHCR]

So they tell you something is wrong with your tire and you ignored them? Radial pull will definitely cause what you experienced. Try swapping the tire to the other side and see if it still pulls. If it does, move it to the rear and see if that helps.

 

[Schu]

The car gets a little floaty arounf 140'ish in standard trim... at 100 it should be firmly planted.

Are you running factory tires?

Make sure unidirectional tires are rotating in the proper direction.

 

[GreenGuardian]

Yea, there the Nitto nt555, there directional tires. They are all on the correct sides there supposed to be on, after all they actually say left side and right side on them. So, obvisiouly shouldnt rotate side to side, would have the try front to back, back to front.

 

[GreenGuardian]

So they tell you something is wrong with your tire and you ignored them? Radial pull will definitely cause what you experienced. Try swapping the tire to the other side and see if it still pulls. If it does, move it to the rear and see if that helps.

No, didn't ignore them, not on purpose anyway. I just forgot at that moment what the guy has said, these tires only have about five thousand miles on them.

 

[ForTehNguyen]

is alignment in spec with the drop? may need a camber kit/bolts

 

[GreenGuardian]

is alignment in spec with the drop? may need a camber kit/bolts

Yes, as stated above everything was done to specs by my Ford Dealership.

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