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jmai86

Just finished s13 coilovers into s30

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Just wanted to share my s13 coilover install into my 71.

 

This is a beautiful and easy setup for the Z. it allows for height range of a nice 1.5"-2" drop to on-the-ground low. All while maintaining maximum shock travel and comfort.

 

I'll have pictures up soon, but for now here's cliffs on what I did:

 

- bought cheap e-motor s13 full coilovers for 400.

- bought 2 extra front perches for 100 (e-motor rear perches are aluminum, no good. just use 4 front perches for all corners).

- removed strut/hub assemblies

- chopped off strut tubes, left about 1" of tube. if you have dead shocks, you don't even have to remove the shocks! saw-zall!

- press on s13 coil perches onto 1" of strut tube (PERFECT fit. 2" ID on the perches, 2" OD on the Z strut tubes!

- weld the perches for redundancy

- re-assemble, using stock Z top hats

-adjust ride height.

 

Easy, effective, modern coilover option for $500.

 

 

Other s13 coilover brands may have different perch ID sizing, I don't know. Other brands may have steel perches all around too. Just take some measurements :)

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i was just about to attempt something like this... i was thinking of welding on the serialnine weld on strut tubes and then just threading on a set of coilovers, but those things are expensive ($260/pair).

 

http://www.serialnine.com/index.php?cPath=104

 

your way is MUCH cheaper. lol. good thing i don't have to be the guinea pig. lol.

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Kris, the bottom part of those coilovers, that bolt to the hub, and the subframe. They are threaded. What I think he did was just unscrew them off, then he installed them like you would diy ground control coilovers.

 

So he removed the threaded sleeve? Turning his what should be preload adjustment into his ride-height adjustment.

 

That's a no-no in my book- especially if he just welded the threaded section onto the strut housing. Yeah- it'd work. But I would think they'd be aluminum, and if not welding to an actual strut/shock wouldn't be too friendly on the guts.

 

Maybe I'm misunderstanding something here.

 

Now the Serial Nine weld-on tube is awesome, and would make it possible to use just about any coilover with the S30, so long as it's a 2" piece, with the same thread.

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Someone will explain it better. He can still adjust his ride height without preload adjustment, just instead of spinning the sleeve with the ears, you have to spin the whole hub to the desired height, then you bolt up the coilover.

 

FRONT2B.JPG

 

Theres a pic to explain what he did, (arizona z car pic)

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Unfortunately, I did not take pictures during the install. It is however _very_ straightforward. I'm setting ride height today so I'll post pictures of the setup tonight.

 

And the coilovers I bought are only height adjustable, not damper adjustable.

 

To raise/lower I simply loosen the top nut, and spin the shock body by hand. You don't have to unbolt anything else or spin the hub to raise/lower.

 

Preload is adjustable as normal.

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Unfortunately, I did not take pictures during the install. It is however _very_ straightforward. I'm setting ride height today so I'll post pictures of the setup tonight.

 

And the coilovers I bought are only height adjustable, not damper adjustable.

 

To raise/lower I simply loosen the top nut, and spin the shock body by hand. You don't have to unbolt anything else or spin the hub to raise/lower.

 

Preload is adjustable as normal.

 

where did you get the perches from? would these work?

 

http://cgi.ebay.com/ebaymotors/Weld-On-Steel-Perches-for-Adjustable-Coilover-Assembly_W0QQitemZ380180978170QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item58848d59fa#ht_693wt_1068

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Someone will explain it better. He can still adjust his ride height without preload adjustment, just instead of spinning the sleeve with the ears, you have to spin the whole hub to the desired height, then you bolt up the coilover.

 

FRONT2B.JPG

 

Theres a pic to explain what he did, (arizona z car pic)

 

I believe you're wrong. He removed the threaded sleeve that the actual shock body threads into- making the collars that actually touch the spring control the ride height. The ride height is adjusted by rotating the shock body, making the preload independent from ride height.

 

Unfortunately, I did not take pictures during the install. It is however _very_ straightforward. I'm setting ride height today so I'll post pictures of the setup tonight.

 

And the coilovers I bought are only height adjustable, not damper adjustable.

 

To raise/lower I simply loosen the top nut, and spin the shock body by hand. You don't have to unbolt anything else or spin the hub to raise/lower.

 

Preload is adjustable as normal.

 

Typical S13 coilovers have height, and spring preload adjustment, as seen in the photo above, and even in the Arizona setup.

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i was just about to attempt something like this... i was thinking of welding on the serialnine weld on strut tubes and then just threading on a set of coilovers, but those things are expensive ($260/pair).

 

http://www.serialnine.com/index.php?cPath=104

 

your way is MUCH cheaper. lol. good thing i don't have to be the guinea pig. lol.

 

 

wait, so does that mean you don't need the rear strut tube anymore?

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I don't have much time tonight to do a little writeup tonight but I got done adjusting my ride height, here's a couple pics in the meantime. I'll get together a post later tonight maybe or tomorrow.

 

Fronts are a couple inches above max low, and rears are few inches above max low:

 

Tires are 225/50/15

 

DSC00565.jpg

 

DSC00563.jpg

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Wow, looks great.

 

Off topic, but what is the specs on you rims, i.e. offset/width?

 

Also, hows the ride quality? Those coilovers prolly have some high spring rates.

 

I am thinking cheap ebay coilovers and replacing the springs for a more streetable set-up.

 

Also, where did you find the extra front lower mounts used for the rear?

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