Bluemustang
Well-Known Member
Not sure if this is causing the problem but geometry is definitely altered with that drop.
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Bingo. I discovered this the hard way as well. This car was my first to modify the suspension.90-100mph! You bad boy! But seriously, when you substantially change one part of the suspension you end up changing it all unless you just lowered it for looks. Found out about that over 3 decades ago and don’t intend to repeat the experience.
What was the air temperature at the time? Was that the actual tire pressure at the time?Just regular nitto street tires, tire pressure was like 35 psi.
Some good suggestions here for things to check but I noticed that you said your tires were pretty much brand new. New tires will be very slippery for a few hundred miles as the oils burn off. I remember after getting my new tires I thought the same thing. My car felt extremely unstable for a while until the oil burned off. Then everything was fine. That's probably your issue right there. That said, def get an alignment if you changed out the springs.Has anyone else experienced this? The other day I was on the highway and i decided to do a hard pull. I noticed that the rear end of the car started to feel like it was moving side to side...almost like it was floating. I think it only does it when it's over 90mph/100mph. I drive around 80mph most of the time without any problem. The car is lowered on springs. Stock 19inch performance package wheels. Tires are pretty much brand new. Wheels were balanced and aligned after being lowered.
2015 GT PP
You won't regret that. I wanna hear how it feels when it's done.I've been on lowering springs w/ stock shocks and struts for a bit over a year now. Really like the look, and I like the reduced body roll and nose dive under braking. However, I've gotten fed up with the ride quality and stability.
I snagged a set of the Ford Performance track shocks and struts and will be installing soon, once the weather is nice enough to bother