Swift springs on kybs and agx's.

[Bstiles]

Hey everyone. First, I want to say that I am pretty much suspension illiterate, so if you can explain things to me like I'm a child, that would be great.

I've been trying to find some stock gvr4 springs, but while researching coilovers I learned about Swift springs (screenshot from stmtuned's website below). Can I put these on my kyb front struts and agx rears?? How do I determine the size I need? And lastly, what the hell should I choose as far as spring rates go? I do a lot of annoying city driving with lots of shitty streets and potholes (Indianapolis). Thanks

 

[tyeler18]

I don't have any experience running coil springs on dsm/galant stock struts but I do have a home built swift coilover setup on my e30 that would require basically the same approach. This is a common coilover path for e30 guys since the strut tubes are welded to the knuckle. You'd want to cut the spring buckets off the struts and either slip a coilover sleeve onto the weld for the spring bucket (how mines done) or machine a ring for a snap ring and spring seat (dennis grant 2g dsm style). Post 33 and 38 of my build thread here should give you some idea as to what needs done.

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As far and spring size and spring rates go it would depend on what collar you used. My amazon specials are 2.5" spring collars so I have 2.5" swift springs. Something in the 450lb front and 350lb rear spring rates would be a relatively comfortable spring rate although AGX's in general are valved stiffer. 550/400 or 450 would be a more performance oriented rate but stiffer. You'll need a 7-8" long spring.

 

[Bstiles]

Thank you for the reply. Looks similar to this? Except for you bought koni damper inserts?

Ground Control Coilover Sleeve Kit - Mitsubishi Galant (incl. VR4) 90-93

Check out the deal on Ground Control Coilover Sleeve Kit - Mitsubishi Galant (incl. VR4) 90-93 at Evasive Motorsports

www.evasivemotorsports.com

 

[tyeler18]

Thank you for the reply. Looks similar to this? Except for you bought koni damper inserts?

Ground Control Coilover Sleeve Kit - Mitsubishi Galant (incl. VR4) 90-93

Check out the deal on Ground Control Coilover Sleeve Kit - Mitsubishi Galant (incl. VR4) 90-93 at Evasive Motorsports

www.evasivemotorsports.com

It's basically a poor mans GC kit yes. I didn't want the Eibach springs that come with the GC kit so I opted for a cheaper sleeve knowing I was junking the springs that came with them. $45 for the sleeves and $300 for 4 swift springs in the rates/lengths that I wanted. I'm using bilstein inserts on my e30 but that doesn't really help you here.

 

[iceman69510]

I assembled coilovers on my AGX maybe 10 years ago. I removed the stock lower spring mount (designed for coil springs with a tail) and used shaft clamps sized to the shock body to hold the threaded sleeve. I bought the threaded sleeves and top retainers from some local stock car parts store. Fairly cheap.

I used Tein camber plates for top and bottom both front and rear so I don't have the stock tops in the equation any more. I believe I bought Eibach springs (I may have had some from other vehicles lying around too). I don't recall what rates, but I could check next week when I get home.