Geiser Bro's Raptor Progressive Springs

[Otis857]

@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.

Since this thread has evolved into a review thread, I found my truck sits higher on the passenger side (without anyone in the drivers seat) since I installed them. Makes since after reading Chris' post on the difference in spring rates. Anyone else seen similar results? Im going to do some measurements this weekend to see if its the springs or I have some other unknown issue. If so, looks like I'll have to swap sides with the shocks to help level it out better.

Love the ride so far on bottom perch. No real desert test yet, just street driving.

 

[Trick.Raptor]

Shocks rebuilt and springs installed. I went with mid-perch vs. bottom and so far so good. I hope to hit Oceano Dunes on Tuesday and test them out!

 

[LekRap]

@Trick_Raptor...I'm curious to hear your feedback on them at mid perch. I've been debating it and have yet to do it. Have you noticed and/or measured a difference in height over stock mid perch? How the ride on the street compared to stock mid perch? Also very curious to hear how you like them in the dunes...

 

[kromealt]

Also itching for your feedback @Trick_Raptor!

I'll probably be installing mine on Wednesday with mid perch as well - mainly grabbed these to help fit my 37x13.50's

 

[Trick.Raptor]

Also itching for your feedback @Trick_Raptor!

I'll probably be installing mine on Wednesday with mid perch as well - mainly grabbed these to help fit my 37x13.50's

If you and @LekRap have not seen my build post this is what my Raptor looks like after the install...





I am certain I gained 3 inches of lift in the front. It started to worry me on the drive home as I was thinking I might not clear the garage (turns out I still have at least 6 inches of room).

With my drive from Sacramento back home (about 330 miles) the ride was as good as before. Compression is very progressive and I didn't find it harsh at all. Droop seems a bit harsher and I figure that has to do both the rebuilt shocks and new springs. Maybe it's a just mid-perch characteristic?

Along with the shock rebuild I installed Deaver +2, Camburg Shackles along with a RPG Stage 2 bumpstop so my Raptor feels much different now than before on the worn out shocks, tired leaf springs and bottom-perch setting...

 

[Houston Raptor]

I just got mine installed on Friday. I was on midperch before with blown shocks, and I was still a bit nose down, so I think my springs were done as well. Left mine on mid perch with rebuilt shocks and I'm a bit nose high now. Love the ride, not sure if it would be smoother on bottom perch but I'm happy with how it rides so I'm leaving mine on mid perch.

 

[kromealt]

I just got mine installed on Friday. I was on midperch before with blown shocks, and I was still a bit nose down, so I think my springs were done as well. Left mine on mid perch with rebuilt shocks and I'm a bit nose high now. Love the ride, not sure if it would be smoother on bottom perch but I'm happy with how it rides so I'm leaving mine on mid perch.

Pics?

 

[Houston Raptor]

Pics?

I'll get some here in a bit.

 

[Houston Raptor]

Sorry for the late pics.

 

[Houston Raptor]

Second pic