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Coilovers information?

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Old Jan 4, 2013 | 12:33 PM
  #1  
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Default Coilovers information?

I am looking at a set of Callaway/Eibach Multipro R2 coilovers.
I was under the impression that all coilovers replaced the stock spring assembly but these work in conjunction with them instead.
Interesting...
How much will these increase my spring rates?
This brings to mind lots of questions about these...
Probably too many questions to ask here.
Is there some tech article somewhere that will give me an in-depth analysis and description of how these setups interact?
I've read a fair bit on this forum about how much better the coilover systems performed and I kinda want to try a set.
TIA!
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Old Jan 4, 2013 | 01:37 PM
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Originally Posted by The Mountain Kat
I am looking at a set of Callaway/Eibach Multipro R2 coilovers.
I was under the impression that all coilovers replaced the stock spring assembly but these work in conjunction with them instead.
Interesting...
How much will these increase my spring rates?
This brings to mind lots of questions about these...
Probably too many questions to ask here.
Is there some tech article somewhere that will give me an in-depth analysis and description of how these setups interact?
I've read a fair bit on this forum about how much better the coilover systems performed and I kinda want to try a set.
TIA!
I never have used these but really dont see this set up working that good as fas as a true coilover. I have had 3 diff sets on my car and like the PFADT set up the best. But one vendor in here has a stance set out that looks just like these for about half the price.. Robert
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Old Jan 4, 2013 | 05:19 PM
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I don't see the point leaving the stock springs. More weight and probably hard to tune correctly. I would just buy Pfadt or LG coilovers.

Steve A.
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Old Jan 4, 2013 | 05:46 PM
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I cannot figure why Callaway would design something like this. How one would tune a setup like this would probably require a whole lotta experience that I ain't got. But it is a local deal and ghe price is pretty good so I figured that I would get some information from people who know more than I.
Here in Tucson the roads suck. Seriously suck thanks to our constant democrat chitty council. Some of the roads are so rough that my Vette rear end kicks all over the place if I try to accelerate more than at a crawl. These leaf springs leave a lot to be desired.

Originally Posted by mountainbiker2
I don't see the point leaving the stock springs. More weight and probably hard to tune correctly. I would just buy Pfadt or LG coilovers.

Steve A.
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Old Jan 4, 2013 | 05:52 PM
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Default coilovers

Hi
Fitted LG coilovers 2011 don't know what the roads are like in your area but in the UK they are pretty rough in places and the ride is smoother without seemingly affecting the handing got a good deal from explosive performance
Colvin
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Old Jan 4, 2013 | 06:05 PM
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The springs remaining won't make them harder to tune. You'd still just adjust ride height at the ends of the springs like you'd do with shocks. Maybe harder to tune because they are double adjustable compared to single adjustable?

From what I understand, you can change out the coil springs for heavier rate units and get rid of the transverse springs if you so wanted to.

Last edited by lionelhutz; Jan 4, 2013 at 06:08 PM.
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Old Jan 4, 2013 | 06:16 PM
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I'm thinking that maybe what is helping to confuse me is that my only experience with a coilover was on my old HD's where they supported the weight of the bike and dampened the spring harmonics as well.
These coilovers are just expensive shocks. More or less.
I think that I will hold out for something that replaces the existing spring/shock setup.
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Old Jan 4, 2013 | 07:23 PM
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Originally Posted by The Mountain Kat
I'm thinking that maybe what is helping to confuse me is that my only experience with a coilover was on my old HD's where they supported the weight of the bike and dampened the spring harmonics as well.
These coilovers are just expensive shocks. More or less.
I think that I will hold out for something that replaces the existing spring/shock setup.
As I already posted, you can stick heavier springs onto them and get rid of the existing springs. Depending on the deal it can still be worth it.
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Old Jan 5, 2013 | 02:34 PM
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As long as you leave the leaf springs in you will not have a truly independent system as one wheel will be loading the spring affecting the other side. I cant see why anyone would design a set up like that. If you want coil overs go with a true set of them.
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Old Jan 5, 2013 | 05:12 PM
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Originally Posted by tiojames
As long as you leave the leaf springs in you will not have a truly independent system as one wheel will be loading the spring affecting the other side. I cant see why anyone would design a set up like that. If you want coil overs go with a true set of them.
I've taken the suspension apart and jacked on one side of the spring watching what happens. The way the spring bends i t seemed to me there would be little if any movement being passed from side to side during normal suspension operation.
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Old Mar 21, 2013 | 03:08 PM
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Update -
dit-dah-dah-dit-dit (Ugh that kind ages me don't it)

The guy came down to the price I offered for the coil-overs so I picked them up.
The labels for which was which were long gone but it was trivial to figure that out. Adjustment is another story and which Callaway seems uninterested in helping me with. I called to ask a few questions and to order the spanner wrenches for adjusting the spring height and if possible to order springs that would allow me to eliminate the leaf springs. The person whom I was transferred to wasn't in so I left a message. A somewhat detailed, but brief, message including that I wanted to spend some of my hard earned money at Callaway. After a WEEK had gone by without a return call I sent a message to Mike Vendetto the Commercial Manager asking the same non-technical questions and explaining that I wanted to purchase the tools. After several more days I sent a message via the Callaway online message blog. Still no answer.
It reminds me of Ultradyne before they folded. If you weren't a top name racer or builder they wouldn't be bothered to talk to you. Until just before they went out of business and _then_ they would talk to anybody with two dimes to rub together.
But enough venting.

I do like the ride and the feel of the car much better. They coil-overs are adjusted for too high of a ride height and I want to lower it to about half way between where it is and where it was. Hence the need for tools.
Does anyone happen to know what the pressure on the Schrader valve should be? Form my limited knowledge it seems that Nitrogen is the gas to use for shock reservoirs. Is this true or is shop air fine? I think that I would prefer the Nitrogen in order to eliminate any potential moisture from entering the system.
These appear to be serviceable and, even though they seem to be working just dandy, I would still like to know about fluid change intervals and type of fluids. If these are serviceable only by Callaway it would have been customer friendly just to say so and give me a price.
Last but not least is the adjustment for the rebound oriented from the top of the coil-over looking down the body or from the bottom looking up? As it mounts in the car with the coil-over angled outwards with the bottom closer to the installer it would appear intuitive that the orientation is from the bottom looking up. Therefore a clockwise adjustment would be from Left to Right. Experimentation will reveal this but it would be a trivial thing to include this somewhat important item in the *instructions*.
Thanks for listening guys and for any advise and knowledge that anyone gives.
Millam
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