Geiser Bro's Raptor Progressive Springs

[Wfo]

any one know what the spring rate on these are?

 

[1stSFG]

Still no one has taken before/after measurements?

I've also not seen anyone mention spring sag as of yet. For those that have had them on for days/weeks, notice any drop at all over time? From my experience a coil will settle to its final resting position after being under load for a few days.

I took mine to powdercoat so I'm waiting for that before I can install.

I didn't ask about installation, ride or other neat stuff. I asked something related to this specific run of springs which had not been discussed yet since people installed springs from this run, so no I don't need to search.

Let point out your contradiction. ^ These springs are no different than the "first run".
If you check page 23 this thread you'll find a link to a thread that has several posts relating to you're "nobody has measured before and after yet".
You've been on this forum long enough to know this right?
I'll close with this is a "garage sale" thread, not a "suspension" or general thread. Merry Christmas.

 

[Chris Crampton]

any one know what the spring rate on these are?

@Supercup and I had this discussion last night.
He tested his (I think he only tested one spring) and here is his numbers,
1st inch, 490lbs
2nd inch, 900lbs
3rd inch, 1520lbs

I put both of my springs in the spring rate gage here at our shop and this is what I came up with (I tested both springs 3 times each)
Spring #1
1st inch, 286lbs
2nd inch, 731lbs
3rd inch, 1190lbs
Spring #2
1st inch, 330lbs
2nd inch, 746lbs
3rd inch, 1206lbs

Note that he and I did not use the same spring gage to measure these.

Glad I did this, I will be putting the heavier spring on the drivers side.
I also will be powder coating my springs matte black.

 

[cups]

@Supercup and I had this discussion last night.

He tested his (I think he only tested one spring) and here is his numbers,

1st inch, 490lbs

2nd inch, 900lbs

3rd inch, 1520lbs



I put both of my springs in the spring rate gage here at our shop and this is what I came up with (I tested both springs 3 times each)

Spring #1

1st inch, 286lbs

2nd inch, 731lbs

3rd inch, 1190lbs

Spring #2

1st inch, 330lbs

2nd inch, 746lbs

3rd inch, 1206lbs



Note that he and I did not use the same spring gage to measure these.



Glad I did this, I will be putting the heavier spring on the drivers side.

I also will be powder coating my springs matte black.

Have you seen any similar tests on the oem springs?


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[Chris Crampton]

Have you seen any similar tests on the own springs?


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I have not. I will be testing the OEM springs when I take them off. @Supercup found some numbers of the OEM springs online somewhere,
This is what he found,
1st inch, 640
2nd inch, 1280
3rd inch, 1920

 

[cups]

There has been conflicting info on scab vs screw doings rates. I'd love to know if anyone has real comparison numbers.


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---------- Post added at 09:38 AM ---------- Previous post was at 09:35 AM ----------

I have not. I will be testing the OEM springs when I take them off. @Supercup found some numbers of the OEM springs online somewhere,
This is what he found,
1st inch, 640
2nd inch, 1280
3rd inch, 1920

So I'm guessing the big difference in numbers is due to the "progressive" character and if compressed further, the number would rise rapidly? Correct?


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[Chris Crampton]

There has been conflicting info on scab vs screw doings rates. I'd love to know if anyone has real comparison numbers.


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---------- Post added at 09:38 AM ---------- Previous post was at 09:35 AM ----------




So I'm guessing the big difference in numbers is due to the "progressive" character and if compressed further, the number would rise rapidly? Correct?


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This should be correct, a more supple ride in the normal driving range and stiffer as the suspension compresses.
Progressive is a ramp effect and the OEM is more linear.

 

[JnJraptor]

@FordFanStan I will try to get some measurements tonight or tomorrow

 

[JnJraptor]

Center to bottom of flare at ride height = 26 3/8"
Center to bottom of flare unloaded = 29 3/8"
Essentially I have 3" sag right now on mid perch. Will be interesting to see if they settle more as they get broken in.

 

[FordFanStan]

Awesome! Good info @Chris Crampton and @JnJraptor