Okay, I'm assuming you're in
Southern Calf?
Have you ever seen C spring on any Fox vert? How about a 4-eye vert?
IMHO, you're asking for a problems.
About isolators:
o The OEM rubber isolators wear down over the years. That lowers the fender height. The isolators settle and.oe wear out over the years, the springs do
not settle!
o Going with brand new Ford OEM isolators will likely raise a car by ~0.1" 0> 0.2". I'll pull a figure from my rear and say 0.15".
o
Any new isolator will take ~1-4 weeks to fully settle. The isolators settle,
not the springs!
o New Poly isolators will raise the fender by ~0.05 to 0.1" over new Ford OEM isolators.
That is after they have both settled for about a month!
o For a Fox or sn95, any drop of over 1" screws up a lot in the geometry of the
suspension. Please realize that with a drop of over 1", you will
not have better handling. Many people that go for a drop over 1" do not have handling as thier main prority. If that's also true for you, then that lower drop is your choice. You know your drving conditions in your area. No one else does. So,
you will know better than
anyone else of you have to deal with speed bumps, bad road conditions, and driveway ramps. So, be careful of suggestions by people that may not fit
your driving needs or desires.
o Even once you lower a Fox or sn95 by 1/2", you really should/need go with CC plates and a bumpsteer kit (*I* say get
MM only!!). For a four-eye, you
do not have the choice! On a lowered 4-eye, without CC plates and a bump-steer kit, your aligment specs will suck and the car will drive and handle like
pure and total cr*p! IMHO, if you can't afford the CC plates and bumpsteer kit, then you can not afford to lower your car!
About Verts:
o First, in reality, spring "drop" specs are many times BS! There are many factors the determine how much an specfic Stang will be effected by any spring.
o Verts are weigh more. Surprise.
So, a vert will be lower on a set of springs than a Hatch or notch.
o Since verts weigh more, total jounce amount (basically: "force required for the
suspension to bottom out"), becomes even more important if you have bad roads, bumps, and so on that you have to deal with.
o
*IMHO*, B springs on a vert are a complete joke. C springs are very risky on hatch or notch because they lower the car way too much for the spring rate. So, C springs on a vert are even more risky. Still, I know that some people have done in on 87-93s. The problem that you will have on a 4-eye is the reduced fender area and the difference in the suspesion geometries because of the shorter k-frame. Again,
you know your road and driving condtions better than anyone else. So, it's
your call on how much you can lower
your car.
Yea, still working on my spring FAQ. So, let me know how I covered the above topics. I'm trying to reach that very delicate balance of "enough info" verses "too detailed and people get bored/lost".
Also, I'm trying to consider the different desires of people. I'm thinking now that I'll need 3 spring FAQs. One for handling, one for lowered looks, and one for quarter mile performance. Otherwise, it seems that one group "get offended" by the info.
Four eyes RULE!!
http://www.veryuseful.com/mustang/tech/misc/Mustang1986_with_Mach1_springs/
Hope the above helps!