Forums/Z31P/z31-performance-upgrade-forums suspension-chassis-and-brakes/Mustang springs
Imported from Z31Performance.com Forums{{#if:SoberZ31| — original post by SoberZ31}}{{#if:2013-08-02 11:22:07|, posted 2013-08-02 11:22:07}}{{#if:19| · 19 post{{#ifeq:19|1||s}}}}{{#if:/Z31performance_archive/forum/z31-performance-upgrade-forums/suspension-chassis-and-brakes/22291-mustang-springs.html|
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SoberZ31: (2013-08-02 11:22:07)
I know some people have used misc. spring combinations on their z31 including mustang rear springs. my question is would front 2000 mustang gt springs at a spring rate of 450 be too stiff for the back of a 1986 Z31 N/A. I have a pair off of my old mustang just laying around and I was thinking of cutting them to size for the rear.
jaqattack02: (2013-08-02 13:43:12)
I hate it when people say this, but I really feel like it's required here. Search noob!
If you type Mustang Springs into the search, this is like the 4th result… http://z31performance.com/showthread…ustang+springs
frostvectron: (2013-08-03 07:32:37)
What are you running for front springs?
450 is pretty stiff. If your fronts are nowhere near as stiff your car will feel wonky in cornering because of the drastic imbalance. Really stiff rear and not so stiff front means the car will be easy to oversteer and not be so stable in hard cornering. What kind of shocks/struts are you running as well? 450 in the rear would require some beefy dampers.
450 lb/in = 8 kg/mm. As comparison, powertrix coilovers are 9kg/mm front and 7kg/mm rear.
I used to run 250 lb/in Mustang Mach 1 springs in the rear with ST springs in the front (see 3rd page of that thread and/or my build thread).
SoberZ31: (2013-08-04 21:17:49)
yea I haven't done any suspension work yet I just have the springs laying around. and the aftermarket springs that are offered for our cars are too soft for my liking. I'm just trying to plan my suspension build on a decent budget. any suggestions would be great.
Axel kain: (2013-08-05 04:10:47)
yep. there was a great write up suggested in the 2nd post here…
SoberZ31: (2013-08-05 10:26:20)
on the link I was given?
SoberZ31: (2013-08-05 11:34:11)
I see everything about rear slings and shocks and that you can even use the rear shocks from a fox body, but not really much about front set up with the mustang springs in the rear
Careless: (2013-08-05 12:00:34)
not sure what you're asking here??? the springs do not work in the front, and you asked only about the rear in your first post…
that thread which was linked came to a pretty solid conclusion; the front or rear mustang springs in the rear of the z31 will work, with some cutting to achieve desired heights, and droop limiters on stiffer springs at low height to prevent them from possibly falling out.
SoberZ31: (2013-08-05 14:36:09)
yes I understand that. my next question is what spring set up would you suggest pairing in the front of the Z since the mustang springs will only work in the back and most aftermarket springs aren't that stiff
jaqattack02: (2013-08-05 15:13:05)
SoberZ31: (2013-08-05 15:29:39)
yea i did read that sorry for the confusion. is there anything stiffer then the tokico springs though. dont care much for a loose feeling car and the spring rates on them arent the best.
jaqattack02: (2013-08-05 16:53:58)
Again, read the thread…
SoberZ31: (2013-08-05 17:01:28)
I did and that's why I asked if there are any other stiffer spring options for the front
jaqattack02: (2013-08-05 17:08:32)
What is in that list is what's available. The only thing missing is the Eibach springs. I'm not sure of the rate on those, but I think they are on the softer side.
The only stiffer option would be coilovers. But if you were going to spend the $$ on coils you wouldn't be trying to be cheap by using a set of Mustang springs you have sitting around.
SoberZ31: (2013-08-05 17:41:58)
well I just experiment with things then since it seems you are one of those "forum" guys everyone. sorry to pollute the forum, not my intention.
jaqattack02: (2013-08-05 18:00:35)
Not sure what you mean by "forum" guys. I've answered all of your questions so far. What, do you think I'm holding back on some super secret piece of info just to be a jerk? Everything anyone knows about using Mustang springs was in the post that was linked, now most of it is here as well.
inqui-Z-tor: (2013-08-05 20:08:38)
"forum" guy - Type 1: Responds to inquiries, questions or requests for help - appropriately, with no malice .. with the intent of responding to the OP's question (whether it's understandable or not)
"FORUM" guy - Type 2: Also responds to inquiries, questions or requests for help - however, does so, seemingly based upon the presumption of the OP has the same basic knowledge of said "FORUM" guy. Provides the information, but cannot do so with out subjecting the OP with a "flame" of some sort.
"FORUM" guy - Type 3: Responds to anything posted. May or may not have the intent to lend any assistance. Has suspect psyche, is compelled to offer assistance, advice and opinion even if having "nothing" to contribute - other than the "need" to respond. [This type does NOT realize that just because a question/inquiry is asked or help sought - it is NOT necessary to respond. Unless the inquiry/question or help request is directed personally to you].
Note: The caveat of all this .. is presuming the inquiry/question or request for help is made clear and understandable. Incomplete sentences, vagueness, incoherent ramblings, mis-spellings or "otherwise" failure to communicate - well then means: "All Bets Are Off"
michaelp: (2013-08-05 20:24:13)
King Springs are 190lb front, 300lb rear
http://www.ebay.com/itm/NISSAN-300ZX…43c113&vxp=mtr
http://www.ebay.com/itm/NISSAN-300ZX…43c09b&vxp=mtr
Eibachs are progressive ranging from ~140lb to 240lb front, and ~180lb-250lb rear
B+G are ~140lb front, ~180lb rear
http://www.ebay.com/itm/B-G-S2-LOWER…aebdf7&vxp=mtr
Axel kain: (2015-12-08 13:05:56)
updated link in 2nd post.