1st gen FM springs too short?
#1
Senior Member
Thread Starter
iTrader: (1)
Join Date: Feb 2006
Location: Detroit
Posts: 1,234
Total Cats: 0
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I just installed a set of 1st gen FM springs on my Konis. I have FCM mounts and bumpstops also. The springs are loose enough to move around. I didn't even need to compress them to put the mounts on.
It doesn't take much pressure to move the mount down to the top of the spring. It is maybe 4-6mm away. Is this normal? I'm going to try putting it in to see if the suspension is tight enough to simply hold them together.
EDIT: The Konis are on the highest perch as per the FCM instructions. I would call Shaikh, but I think the springs are the problem not the mounts.
It doesn't take much pressure to move the mount down to the top of the spring. It is maybe 4-6mm away. Is this normal? I'm going to try putting it in to see if the suspension is tight enough to simply hold them together.
EDIT: The Konis are on the highest perch as per the FCM instructions. I would call Shaikh, but I think the springs are the problem not the mounts.
#4
Senior Member
Thread Starter
iTrader: (1)
Join Date: Feb 2006
Location: Detroit
Posts: 1,234
Total Cats: 0
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I went and put everything together. I made sure to torque the bolts under load and to proper spec. The springs are tight when in the air, but when I put the wheel on it sags a 1-2mm. It's not enough to come out of the perches like before, so I'm ok with it.
The car looks GOOD. I can't wait to see how it handles.
The car looks GOOD. I can't wait to see how it handles.
#7
Senior Member
Thread Starter
iTrader: (1)
Join Date: Feb 2006
Location: Detroit
Posts: 1,234
Total Cats: 0
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Installed:
https://www.miataturbo.net/forum/showthread.php?t=
It does make sense, but i was afraid of it before I installed them. The spring could come out of the perches. I was afraid of the car being able to move enough to let the spring come out. After installing it I see that is not possible.
Thanks for letting me know its ok though.
https://www.miataturbo.net/forum/showthread.php?t=
Think about it. You are going to a much shorter spring, it's no surprise that under full droop you run out of spring. That's why you see some coilovers with helper springs.
My GC/AGX setup does the same thing, I've never had a problem since I don't often get the car airborn.
My GC/AGX setup does the same thing, I've never had a problem since I don't often get the car airborn.
Thanks for letting me know its ok though.
#10
Senior Member
Thread Starter
iTrader: (1)
Join Date: Feb 2006
Location: Detroit
Posts: 1,234
Total Cats: 0
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I screwed up a copy and paste, makes me look smart!
![Name: IMG_1486.jpg
Views: 71
Size: 70.0 KB](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/212604d1501265564-1st-gen-fm-springs-too-short-img_1486.jpg)
![Name: IMG_1484.jpg
Views: 67
Size: 53.8 KB](https://www.miataturbo.net/attachments/suspension-brakes-drivetrain-49/212605d1501265564-1st-gen-fm-springs-too-short-img_1484.jpg)
#17
Senior Member
Thread Starter
iTrader: (1)
Join Date: Feb 2006
Location: Detroit
Posts: 1,234
Total Cats: 0
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
Thanks to The_pipefather my car runs! He managed to sort out the MS, so I got to take it for a drive. I will be taking pictures tommorow of how it sits. I'm sure everyone is bored of seeing it sitting in my driveway, so I will go find some decent looking spot. I love the stance it has.
With the FCM mounts and bumpstops I have all the travel I will ever need. That being said I doubt the springs even compress...they are STIFF. It's ok though, I like it that way.
With the FCM mounts and bumpstops I have all the travel I will ever need. That being said I doubt the springs even compress...they are STIFF. It's ok though, I like it that way.
![Giggle](https://www.miataturbo.net/images/smilies/gay.gif)
Thread
Thread Starter
Forum
Replies
Last Post
stoves
Suspension, Brakes, Drivetrain
5
04-21-2016 03:00 PM