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Anyone else running Cosmo Racing sleeve overs?


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I am, got them in a group buy years ago, they weren't called Cosmos at the time but its the same package. I've got 40K on them, working fine but you will need camber plates to really tune things in which is why the D2's are nice. Putting those on my other car.

 

The trick with the Cosmos is getting the sleeve fitted snug, they give you this worthless o-ring to go between the shock body and the spring sleeve that lets the sleeve **** back and forth which makes it clank while you're driving. Get some muffler tubing, I believe the correct size is 2" but just measure the OD of the shock body, cut it to the same length as the spring sleeves and then slit it completely up the side end to end. The muffler tubing ID is slightly smaller than the OD of the shock body, slitting it end to end allows you to slip it over the shock, then slide on the spring sleeve. Fits like a glove, no clunks.

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I had them for a few years before jumping to D2's.

 

Camber plates are necessary, as Scott said, unless you plan on staying stock height. :blink:

 

Do what Scott said with the exhaust tubing, also, you can add electrical tape between the exhaust tubing and strut tube for a snug fit. I believe it is either 2" or 2-1/4" tubing, I remember thinking "wow that's a strange size for exhaust pipe".

 

When I did mine, I used a dremel to clean up the inside of the tube and it slid right over.

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If Cosmos is the same set that Artinist had a group buy for years ago, then Im running them too. No problem with noise/clunking really if you make sure the sleeve is secure during installation. If you ever need to change spring rates/lengths, you do have options(should be 70mm inner diameter): http://949racing.com...acesprings.aspx

 

I would recommend going short stroke though :)

 

http://www.starquest...opic=93736&st=0

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/starion-suspension/DSC00657.jpg

Edited by SFBMX88
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Yeah I'm running a set of Arts too. They work great once you work out getting the sleves to fit as stated above. Have had no clunking but have the sleves turned almost all the way down and messed with the perches a bit. Wish I had just hacked them off, and created new one's, or had steal slevels made and just welded them on in retrospect but they work fine as is.
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You can cut off a big part(not all) off the rear factory spring perches so you don't have to turn the spring adjuster all the way down:

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/starion-suspension/DSC06282.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/starion-suspension/DSC06280.jpg

 

Just leave enough material for the adjustment sleeve to rest on.

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You can cut off a big part(not all) off the rear factory spring perches so you don't have to turn the spring adjuster all the way down:

 

http://i5.photobucket.com/albums/y176/sfbmx88vol2/starion-suspension/DSC06282.jpg

http://i5.photobucket.com/albums/y176/sfbmx88vol2/starion-suspension/DSC06280.jpg

 

Just leave enough material for the adjustment sleeve to rest on.

 

Im my case I "had" to cut them down to nothing just to fit my rims. Back ride height is fine with me tucks 3/4 of the tire on a 18X10.5 with a 255 35 18. Fronts I would want about 2" maybe a bit more lower.

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  • 1 month later...
I put a set of Arts thru MANY seasons of autoxing and track days with zero complaints. I removed the perch totally and welded on new ones lower. They were great for the price.
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