High speed stability?

Drove the Maverick this morning, had a long straightaway, decided to open it up. I've ran it up to 80-85 mph before and let out. This time I held on to around 110 mph before I let off. Was still picking up speed! At around 90-95 mph, it stated getting a little twitchy, kinda floating like, hard to describe. Last car I had that fast was a 92 T Bird, and it seemed like the faster it went, the better it held the road. The Maverick was a little bit scary at that speed. Don't know if I need to rebuild the front end [has new upper ball joints already, no slack in the manual steering] or if it's just the aerodynamics of these cars. I wanted to take it to the 1/8 mile track this summer, but if it's that unstable at high speeds, I don't think I want to now. And then again, it might have just been me. It's been a long time since I've experienced that high a speed!

 

High-speed stability? In stock configuration...there aint none.

 

Mine isnt bad at 150mph. Seriously, its not but that doesnt mean yours couldnt have a problem. Im sure some cars are better than others but mine feels ok. Mine does have some extra caster in it thou.

 

mines not scary at 130+ sounds like you need to get that front end looked at

 

at 1/8 mile i don't think you will have a...high speed...problem...

...

 

at the 1/8 I doubt you will get past 75mph. I never got mine past 90mph with the 6 cllinder and I thought I was gonna die when I went to stop because the passenger front drum was way out of round and it shook hard when stopping

 

Like others have said ... 1/8 mile you shouldn't be much over 80.

Sounds to me like air is piling up under the car at speed ... Suggestions to fix it ... front spoiler, slight nose-down attitude (cut the front springs a bit), and a tweak on the caster in the alignment.

 

I guess you are right, probably wo'nt see that kind of speed again. Front end has been checked by a shop, was a ok. Must just be me!

 

Could be air pileing up. Front is lowered about 1 coil.

 

Mine feels pretty much the same from 75 up until about 100. It gets a little light feeling in the front end from there on. Tops out at about 116 with it on the floor down hill, every time you hit a dip in the road going that fast, it feels like the air is trying to pick the front of the car up.

 

Yep, that's it!

 

did you shave the shock towers?...that could be it too

 

Once i got into a top end pull with one of my crew, He was in a Supercharged Mustang. We both let off at about 150, I rebuilt the front end shortly thereafter. The car never experienced any problems but i could tell that it was loose. I totally rebuilt the front suspension with today's specs for radial tires. I also put on a new control valve as well as a new slave cylinder. I haven't been 150 since i did the rebuild, But i did go 132 in the 1/4 mile several times. Now the car is as tight as any new car i have driven.

 

some stiffer shocks and a biger sway bar will give a more solid feeling. a front spoiler should help alot also.

 

Aerodynamics. Get a front spoiler and lower the front end a little. Tires will help as well. Look at the front valence. It looks like the hull of a boat. Thats going to give the front end lift. Now if you also have a rear spoiler, you are creating down-force on the rear and is going to make the front-end-lift even more noticeable.