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So to give some reference I had an NA which I bought completely stock. I put BC BR's in it and was extremely happy with how they improved the handling of the car. I have recently bought an NB which had a set of Yellow speeds installed in it when I purchased it. Now I am finding these yellow speeds terrible... Their rebound is way out and is quite scary when up in the mountains and I also have a question about their dampening adjustment - mine are all the way hard (full clockwise) and they are about as soft as the BC's would go in full soft (full counter-clockwise) is this normal for yellow speeds? And to make things worse it seems as if the rear shocks aren't there. If you push on it the rear will just bounce.. I am quite disappointed so far!

All shocks are about 1 month old and don't look like they are leaking / have any defects.

Please help!

Spring rates?
Sway bar setup front/rear?
Are these the Dynamic Pro Sport or the race version? Are they gen 1 or 2?

Need more info on your setup.

Or you could call Mania and ask for help - they are happy to support their products. I am no huge fan of YSR coilovers but there are plenty on peeps on here who have been able to make them work.

That doesn't seem right at all.
Iv got yellowspeeds in an nb and at the factory setting (6 clicks from softest I think) the car pushes down a little but springs straight back up and stops. No bouncing.
Mx5Mania are the dealer for them, maybe stop by and show them.
The original owner may have tried to adjust the height and adjusted/unscrewed the wrong thing??

Roadrunner wrote:That doesn't seem right at all.
Iv got yellowspeeds in an nb and at the factory setting (6 clicks from softest I think) the car pushes down a little but springs straight back up and stops. No bouncing.
Mx5Mania are the dealer for them, maybe stop by and show them.
The original owner may have tried to adjust the height and adjusted/unscrewed the wrong thing??

That's what I'm thinking

They were bought like a month ago new if that helps other than that I just bought it like this

I'm no expert on coilovers but I believe if you try to adjust the height by moving the collar that the springs sit on this will severely upset rebound etc

Roadrunner wrote:I'm no expert on coilovers but I believe if you try to adjust the height by moving the collar that the springs sit on this will severely upset rebound etc

Yeah that'll effect the preload not height height is the bottom one

Hi.
I would get them checked by somebody who knows what they are doing. You could try Ken at accurate suspension in woodridge. I think you may have purchased a car with a known bad set of shock absorbers.

Adjusting the ride height by spring load is the correct way. Adjusting the other one affects your balance between bump and rebound.


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ralt wrote:Hi.
I would get them checked by somebody who knows what they are doing. You could try Ken at accurate suspension in woodridge. I think you may have purchased a car with a known bad set of shock absorbers.

if it is bouncing, then it wont be the shock like in a normal sprung car as the coilover springs are too firm for that.

my guess would be the height has been adjusted using the spring feet, and there is very little, if nil preload, and the spring is bouncing on the spring feet with loss of capture.

project.r.racing wrote:

ralt wrote:Hi.
I would get them checked by somebody who knows what they are doing. You could try Ken at accurate suspension in woodridge. I think you may have purchased a car with a known bad set of shock absorbers.

if it is bouncing, then it wont be the shock like in a normal sprung car as the coilover springs are too firm for that.

my guess would be the height has been adjusted using the spring feet, and there is very little, if nil preload, and the spring is bouncing on the spring feet with loss of capture.

I'll take them out and check but before I do.. Isn't preload only meant to be wound up to the point where the spring is just captive? (I know people wing them all the way your rift setups but for daily/handling the spring is only meant to just be captive ??

Preload is the amount of weight on the spring to get the desired ride height or the correct corner weight.

There are 2 schools of thought on setting up coil overs. One is adjust the preload first (about 2mm once the collar touches the spring) and then adjust the shock length to get the desired ride height or corner weight. The other is to match the length of the shock to the car to ensure you have used all the available travel and the required droop. Then adjust the prelaod to get the desired height/weight.

The only time (if ever) the spring should be uncaptive is at full droop. This can be checked by jacking the car up and looking at the shock.

Another question, what are the spring rates?

Magpie wrote:Preload is the amount of weight on the spring to get the desired ride height or the correct corner weight.

There are 2 schools of thought on setting up coil overs. One is adjust the preload first (about 2mm once the collar touches the spring) and then adjust the shock length to get the desired ride height or corner weight. The other is to match the length of the shock to the car to ensure you have used all the available travel and the required droop. Then adjust the prelaod to get the desired height/weight.

The only time (if ever) the spring should be uncaptive is at full droop. This can be checked by jacking the car up and looking at the shock.

Another question, what are the spring rates?

Hey magpie thanks for clarifying that for me, I'm not 100% sure on the spring rates man I bought the car as is ( im the same guy who started that "does anybody actually run E85" thread - yes I'm starting this project )

I think I might sell the yellow speeds and put that money into MCA's - thoughts magpie??

I have not used MCA's so can't comment, however for all reports the MCA's are worth it.

angusis2fast4u wrote:

project.r.racing wrote:

ralt wrote:Hi.
I would get them checked by somebody who knows what they are doing. You could try Ken at accurate suspension in woodridge. I think you may have purchased a car with a known bad set of shock absorbers.

if it is bouncing, then it wont be the shock like in a normal sprung car as the coilover springs are too firm for that.

my guess would be the height has been adjusted using the spring feet, and there is very little, if nil preload, and the spring is bouncing on the spring feet with loss of capture.

I'll take them out and check but before I do.. Isn't preload only meant to be wound up to the point where the spring is just captive? (I know people wing them all the way your rift setups but for daily/handling the spring is only meant to just be captive ??

yes. but 1-2mm can mean the difference between wrong and right. the rest magpie has said.

Magpie wrote:I have not used MCA's so can't comment, however for all reports the MCA's are worth it.

What Coilovers do you use then Magpie? I just assumed you would be using MCA! haha