How-to: Proper Budget Rear Coilover

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05-25-2012, 08:16 PM

Zuba951

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Rob, Great Job! I have been looking for this setup for a while. I have a new set of HD's under my bench. Did you get the .025 deep from Bilstein? I was going to make my own setup but didn't know how deep to cut the shock for the snap ring...and I didn't want to use..well if you see oil spaying out you went too far...
Very cool !!!

Thanks

Brian
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05-25-2012, 10:12 PM

Richgreenster

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Cool Project.

05-26-2012, 12:20 AM

zerMATT951

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Very cool!!

One question: I know nothing about the forces that the snap ring would see on our cars in a 250lb "helper" spring situation, but is there any concern that the ring and body w/groove is up to the task?

05-26-2012, 08:54 AM

zerMATT951

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Quote:

Originally Posted by robstah

I actually asked the exact same question to an engineer at the Bilstein booth at PRI this past year. He gave me a funny look and then proceeded to say that the sleeve kit/snap ring installs have been done forever now in motorsports on some of their more robust setups and have held up fine to whatever they throw at it.

05-26-2012, 10:50 AM

86 951 Driver

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Looks like a cool project. How did you get the bilstiens to fit up front though?

05-26-2012, 11:37 AM

reno808

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VERY NICE THANKS FOR POSTING

05-26-2012, 12:07 PM

gruhsy

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Thanks for posting that. Very nice work.

Jason

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05-26-2012, 04:38 PM

zerMATT951

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Rob, do you know if Bilstein HD inserts will fit in a Bilstein cup strut? I've got a full set of cup coilovers that I've decided not to install because I'd have to revalve them for street and buy new springs. With your mod above, I'm thinking about selling the rear cups, using HD's in back, then remove and sell the front inserts, and swap in HD's up there as well.

After all that, I'd be able to sell my full M030 set intact for someone that wants an upgrade.

Does that sound logical at all? It seems do-able if the HD inserts will fit in the cup strut mounts.

05-26-2012, 07:18 PM

gruhsy

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8 inch or 10 inch springs how do they differ as far as performance?

05-26-2012, 09:18 PM

#10

Josh B

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Very impressive - thanks for the write up!

05-31-2012, 02:40 PM

#11

zerMATT951

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Rob, can you offer any insight for me? (post #11 above)

I'm planning to start selling some parts soon to finance a replacement short block, and I want to make sure I only sell what I won't need to upgrade the suspension

05-31-2012, 08:17 PM

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ausgeflippt951

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Great writeup! If I hadn't already upgraded my T-bars, I'd definitely consider this route.

10-22-2012, 12:18 AM

#13

hot-J

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Can the Bilstein inserts be made to work in the later housings? I did a conversion today with the Koni's, and it was easy. I imagine it would be the same process?