[RoWoX3M]

Originally Posted by redcrxsi

Great news! Interesting this wasn’t discovered as an issue with their car but sometimes issues don’t show up until out in the wild.

Agreed. It's what I get for being one of the first ones but Dinan stepped up and now it's perfect.

[allinon72]

They should have probably anticipated that, as nearly every spring kit with coils wound that close together requires isolators, but hey better late than never.

[Kozumasbullitt]

Originally Posted by RoWoX3M

Agreed. It's what I get for being one of the first ones but Dinan stepped up and now it's perfect.

I received my isolators as well and plan to do the install this weekend. Rating the noise now, pre-isolators being a 10, what would you rate the noise?

[jmh]

My suspension noise is completely gone after installing the isolators (ie like stock now)
Now if Dinan could figure out how to fix the exhaust flap rattle I'd be an even happier camper....

Originally Posted by Kozumasbullitt

I received my isolators as well and plan to do the install this weekend. Rating the noise now, pre-isolators being a 10, what would you rate the noise?

[RoWoX3M]

Originally Posted by Kozumasbullitt

I received my isolators as well and plan to do the install this weekend. Rating the noise now, pre-isolators being a 10, what would you rate the noise?

Whatever number you would equate with stock. Super easy getting them on too. You don't even need to remove the front wheels. Just jacking each side gives you sufficient clearance on the fronts.

[Kozumasbullitt]

Originally Posted by RoWoX3M

Whatever number you would equate with stock. Super easy getting them on too. You don't even need to remove the front wheels. Just jacking each side gives you sufficient clearance on the fronts.

That's amazing to hear...pun intended. I am throwing my HRE wheels on this weekend and will do the isolators as well.

[Kevin_The_Clean1]

I'm still debating on... H&R or DINAN springs in the near future. Hope someone does a spring rate comparison too at a lab to see which one would offer more control and composure on our F97 SAV's.

[Kozumasbullitt]

Originally Posted by Kevin_The_Clean1

I'm still debating on... H&R or DINAN springs in the near future. Hope someone does a spring rate comparison too at a lab to see which one would offer more control and composure on our F97 SAV's.

Considering the Dinan springs are stiffer, they will provide the best performance. In terms of ride quality, the Dinan kit feels no different than stock and the stock ride is fine in my opinion. The H&R springs will soften up the ride and make it more comfortable. The gain from a lower center of gravity with the H&R springs is most likely negated by the lost performance from the softer spring rates. The Dinan springs will benefit from a lower center of gravity and a more aggressive spring rate.

[Kevin_The_Clean1]

Originally Posted by Kozumasbullitt

Considering the Dinan springs are stiffer, they will provide the best performance. In terms of ride quality, the Dinan kit feels no different than stock and the stock ride is fine in my opinion. The H&R springs will soften up the ride and make it more comfortable. The gain from a lower center of gravity with the H&R springs is most likely negated by the lost performance from the softer spring rates. The Dinan springs will benefit from a lower center of gravity and a more aggressive spring rate.

Do we know for a fact the DINAN springs are stiffer... ?

[Kozumasbullitt]

Originally Posted by Kevin_The_Clean1

Do we know for a fact the DINAN springs are stiffer... ?

There are no independent test but Dinan claims 20% stiffer.

[RoWoX3M]

H&R claims improved handling and "superb ride comfort" with .2" more drop in the front than Dinan. As far as just a spring swap I don't think there will be a discernible difference. Dinan offers bumpstops which I'm sure you could use with h&r if you decide to go that route

[Kozumasbullitt]

Originally Posted by RoWoX3M

H&R claims improved handling and "superb ride comfort" with .2" more drop in the front than Dinan. As far as just a spring swap I don't think there will be a discernible difference. Dinan offers bumpstops which I'm sure you could use with h&r if you decide to go that route

Science and math says if someone did skidpad testing, the Dinan springs would show marked improvement over the others. Whether or not a a few fractions of g-force is perceptible is another question.

[MaxGainz]

Thats why buying spring is often a pain in the ass. All manufacturers just say ImPrOvEd HaNdLiNg!1 but they rarely divulgate spring rate or stiffness. At least we know Dinan is 20% stiffer.

[Kozumasbullitt]

Installed the sleeves yesterday and could see where the close coils were touching.
I went for a short drive today and I tried my hardest to hear noise but it is silent now. The car is so much more enjoyable with the coil sleeves, 10/10.

[Kevin_The_Clean1]

Originally Posted by Kozumasbullitt

Science and math says if someone did skidpad testing, the Dinan springs would show marked improvement over the others. Whether or not a a few fractions of g-force is perceptible is another question.

Why is that... ?

[Kozumasbullitt]

Originally Posted by Kevin_The_Clean1

Why is that... ?

Why is what?

[Kevin_The_Clean1]

Originally Posted by Kozumasbullitt

Why is what?

Originally Posted by Kozumasbullitt

Science and math says if someone did skidpad testing, the Dinan springs would show marked improvement over the others. Whether or not a a few fractions of g-force is perceptible is another question.

When you said "all the others" why would the DINAN springs be better than the H&R... ?

Simply wondering why the German made H&R still wouldn't be as good at the DINAN set. Not necessarily asking you directly. Just trying to determine which set of spring is actually stiffer offering more composure & agility under all circumstances.

I'm German so we like to know the exact specifics in numbers! LOL

[RoWoX3M]

Originally Posted by Kevin_The_Clean1

When you said "all the others" why would the DINAN springs be better than the H&R... ?

Simply wondering why the German made H&R still wouldn't be as good at the DINAN set. Not necessarily asking you directly. Just trying to determine which set of spring is actually stiffer offering more composure & agility under all circumstances.

I'm German so we like to know the exact specifics in numbers! LOL

I have to agree unless he has some tech sheets none of us do I think that conclusion is only based on the marketing language. I'm running the Dinan springs and love them now that the noise issue is resolved. However, I've run H&R in the past on other BMWs and they felt great too as far as improved performance. Would be interested in learning more about the technical differences between the two.

[Kozumasbullitt]

Originally Posted by RoWoX3M

I have to agree unless he has some tech sheets none of us do I think that conclusion is only based on the marketing language. I'm running the Dinan springs and love them now that the noise issue is resolved. However, I've run H&R in the past on other BMWs and they felt great too as far as improved performance. Would be interested in learning more about the technical differences between the two.

I can try and dig up the information but from what I remember, the H&R springs were softer than stock. I am taking Dinan's word that their springs are slightly stiffer than stock and that's why I went with them. In reality, the difference is most likely imperceptible.

[RoWoX3M]

For comparison. My alpine white with Dinan springs. Phytonic blue stock suspension.

[Parnishka]

Originally Posted by Kozumasbullitt

Local Dinan shop just quoted me $2177 for installation and alignment.

dam wtf 1: are they working with Golden tools?! crazy people. I asked my local performance shop about installation price for springs with alignment and catless pipes he said 1200$.

[Parnishka]

Originally Posted by RoWoX3M

For comparison. My alpine white with Dinan springs. Phytonic blue stock suspension.

very nice