Brian's '96

BDKW1 · Post by **BDKW1** » Tue Jun 29, 2010 4:46 pm

You have 10 active coils, what's the wire diameter and the ID of the coils?

350 would be a pretty good rate.......... With a tender spring..........

yikes · Post by **yikes** » Tue Jun 29, 2010 5:10 pm

BDKW1 wrote:You have 10 active coils, what's the wire diameter and the ID of the coils?

350 would be a pretty good rate.......... With a tender spring..........

Coil ID is 4.50", wire diameter is approximately .706...under the powdercoat and yeah, 10 active coils.

yikes · Post by **yikes** » Tue Jun 29, 2010 5:32 pm

Interesting....Using FOA's spring calculator for a beam suspension I get a required spring rate of 236lbs, which for a dual rate set-up would be a 590 primary with a 380?? tender. Using a couple of other po-dunk calculators, my springs are showing in the 240 range. What's not factored in to most of these is the torsional modulus, which is an unknown, but appears to have a significant impact on the rate.

All things considered, it appears these should be relatively close to what I need, but a tender may be necessary to get the proper ride height....just thinking out loud here.

philofab · Post by **philofab** » Tue Jun 29, 2010 7:44 pm

Something I have encountered with beam suspensions is since the track width changes so much through travel is they stay up until you roll them back and forth a bit. Could that been what happened or do you just have the adjuster all the way down so the coil hardware doesn't fall out?

You may look to circle track stuff for a tender spring... they use a lot of 5" coils.

BDKW1 · Post by **BDKW1** » Tue Jun 29, 2010 8:54 pm

yikes wrote:All things considered, it appears these should be relatively close to what I need, but a tender may be necessary to get the proper ride height....just thinking out loud here.

Ding ding, winner....... I know on rangers, for a 3" X 14" shock we use a 300# X 2" spring with a 150# X 5" tender........ The tender spring is almost completely collapsed at ride height and the firmer bottom rate helps control the body roll without getting to harsh.

yikes · Post by **yikes** » Wed Jun 30, 2010 4:37 pm

I got a thread going on RDC to see if I could get some help on this. King, SAW and Eibach have been dead ends. King recommended Blue Coil Products for custom springs. Brian said they are very reasonable for one-offs.

BDKW1 · Post by **BDKW1** » Thu Jul 01, 2010 10:02 am

Still like the Neckcar spring cut in half idea, only I fooked up on the rate. Cutting it in half will double the rate. So going with the 100# spring would net you about a 200# rate when it was cut in half. The 150# would end up being too stiff. To bad they don't make a 75# spring........

MOSS2 · Post by **MOSS2** » Thu Jul 01, 2010 6:14 pm

I have used these guys for springs at work. They have a lot of stuff and will custom make. http://centuryspring.aitrk.com/

Ken

yikes · Post by **yikes** » Thu Jul 01, 2010 6:46 pm

Thanks Ken. I've used Century quite a bit myself at work. Maybe I should give them a go for this too. I contacted Blue Coil. They'll do a one-off set for $240. That works for me.

Dust · Post by **Dust** » Fri Jul 02, 2010 9:07 pm

So Iz quieter here then RDC.
What size Delrin billet are you looking for?
Could you live with white?

I just might have a source.

yikes · Post by **yikes** » Fri Jul 02, 2010 9:45 pm

Dust wrote:So Iz quieter here then RDC.
What size Delrin billet are you looking for?
Could you live with white?

I just might have a source.

Ooooh! White or natural is fine. I need 6" diameter by 10" min long or two 5" long pieces. Thanks!

Blue Coil was a no go on the springs. Once they crunched some numbers, they said it was impossible to make with a 150lb rate. Didn't have time to ask questions, but they said they may have some 250lb springs that would fit the bill. Don't think that'll work though.

Dust · Post by **Dust** » Fri Jul 02, 2010 10:45 pm

yikes wrote:
Dust wrote:So Iz quieter here then RDC.
What size Delrin billet are you looking for?
Could you live with white?

I just might have a source.

Ooooh! White or natural is fine. I need 6" diameter by 10" min long or two 5" long pieces. Thanks!

Blue Coil was a no go on the springs. Once they crunched some numbers, they said it was impossible to make with a 150lb rate. Didn't have time to ask questions, but they said they may have some 250lb springs that would fit the bill. Don't think that'll work though.

Give me a day to make a call.

BDKW1 · Post by **BDKW1** » Sat Jul 03, 2010 12:28 am

To bad your shocks are so damn big, I have a large supply of these......

yikes · Post by **yikes** » Mon Jul 05, 2010 1:00 pm

BDKW1 wrote:To bad your shocks are so damn big, I have a large supply of these......

Haha! Well, if I would have known that, I would have bought smaller. Dernit!

I decided to contact RGM to see if I could get any help there. What do you think? Fat chance? We'll see.

David Kennedy · Post by **David Kennedy** » Mon Jul 05, 2010 5:20 pm

I know he spoke about selling shocks to the public at the 2009 Dakar....

BDKW1 · Post by **BDKW1** » Mon Jul 05, 2010 7:34 pm

Pretty sure Roger is the guy that handles the shock stuff. Call the shop and he can probably point you in the right direction if he can't take care of you.

Post by **SteveG** » Mon Jul 05, 2010 7:38 pm

Who's idea was it to use those stupidly large shocks anyway!?

Dust · Post by **Dust** » Tue Jul 06, 2010 8:48 pm

SteveG wrote:Who's idea was it to use those stupidly large shocks anyway!?

I don't know but they must be a BAD influence...

+/-7.5"D x 10"L White Delrin.
I can get you a scrap piece for $100-Max, maybe in the $75 range.
I'm looking at some other materials so it just depends on the final deal.
How far out do I want to reach in this blasted economy.
Iit's only money right... wish the flow would change directions

Shipping... I'll see if I can get a weight.

Chris

yikes · Post by **yikes** » Tue Jul 06, 2010 9:12 pm

Awesome Chris!! Thanks for taking the time to check that out. Hopefully my 3 jaw will accept that monster. At least it won't take long to whittle down.

Dust · Post by **Dust** » Tue Jul 06, 2010 9:41 pm

yikes wrote:Awesome Chris!! Thanks for taking the time to check that out. Hopefully my 3 jaw will accept that monster. At least it won't take long to whittle down.

>Note<
First Delrin (acetal resin) is fun to machine! BUT be aware that when heated like turning it on the lathe, it out-gasses formaldehyde. Some people react to it so be aware if you get a headache FAST get out in the fresh air and get more air in you shop space. Good ventilation is a must. Use a fan and open the door!!!!!!

Second collect the chips and put them in zip-loc bags, If you happen to be a shooter put all your dirty patches in there to. You now have an emergency fire-starter that burns and sticks to the wood, just don't stand down wind.
Do NOT do this with polyurethane shavings... Delrin is one thing, that stuff can be fatal.

PM ya as soon as I set the deal.
C

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