Weird Dinan coilover response, need help

AnthraciteOG · 02-06-2019, 01:07 PM

Hi guys, I just recently installed a set of Dinan adjustable coilover on my M2 and the car feels unplanted and bounces a lot compared to stock. When going over a bump the car feels like like its about to jump and Im getting the opposite of what people is saying about how the dinan coilover makes the car. The stock was more compliant over bumps and actually way comfortable than dinan. Please give me some help!

Hankdoll · 02-06-2019, 02:15 PM

Was it professionally installed? Alignment after?

AnthraciteOG · 02-06-2019, 02:17 PM

Quote:

Originally Posted by Hankdoll

Was it professionally installed? Alignment after?

It was professionally installed but haven't gotten an alignment cause they told me to let it settle for a week first. But I don't think an alignment can change how the car ride no?

Anthony1s · 02-06-2019, 02:48 PM

There are at least three threads with discussion about this that I've read before, here are two that I quickly found.

https://f87.bimmerpost.com/forums/sh....php?t=1560584
https://f87.bimmerpost.com/forums/sh....php?t=1546910

Seems like upgraded sway bars would help with the bouncyness, but no one has confirmed it yet.

chris719 · 02-06-2019, 03:00 PM

Quote:

Originally Posted by victorli428

Hi guys, I just recently installed a set of Dinan adjustable coilover on my M2 and the car feels unplanted and bounces a lot compared to stock. When going over a bump the car feels like like its about to jump and Im getting the opposite of what people is saying about how the dinan coilover makes the car. The stock was more compliant over bumps and actually way comfortable than dinan. Please give me some help!

I'd return them and get Ohlins R&T or M Performance suspension if you can. Dinan isn't what it used to be.

GoneIn4Secs · 02-06-2019, 03:50 PM

I have the M perf coilovers , they are great

AnthraciteOG · 02-06-2019, 03:55 PM

Quote:

Originally Posted by Anthony1s

There are at least three threads with discussion about this that I've read before, here are two that I quickly found.

https://f87.bimmerpost.com/forums/sh....php?t=1560584
https://f87.bimmerpost.com/forums/sh....php?t=1546910

Seems like upgraded sway bars would help with the bouncyness, but no one has confirmed it yet.

Yea I checked these two thread before I even bought the thing and Im confused rn.

AnthraciteOG · 02-06-2019, 03:56 PM

Quote:

Originally Posted by chris719

I'd return them and get Ohlins R&T or M Performance suspension if you can. Dinan isn't what it used to be.

Yea I was considering Ohlins R&T or the m performance one but they were out of my budget at the time and I was happy with how the car handles stock

QM · 02-06-2019, 06:48 PM

Quote:

Originally Posted by victorli428

Quote:

Originally Posted by chris719

I'd return them and get Ohlins R&T or M Performance suspension if you can. Dinan isn't what it used to be.

Yea I was considering Ohlins R&T or the m performance one but they were out of my budget at the time and I was happy with how the car handles stock

Seems like you have an installation issue. Go back to the shop and have them test drive it before you throw money at this or get misdirected to try something else. If they are an authorized Dinan installer hopefully they won't give you the run around. If they do, call Dinan directly. They are responsive. I went from stock to Dinan and like you said had the exact opposite experience. This is one of few suspensions that actually improve the ride on the street. You don't need any additional parts to make it compliant because it was designed to be compliant as is. This suspension uses linear (vs progressive) springs I believe, which helps make it compliant.

AnthraciteOG · 02-06-2019, 06:52 PM

Quote:

Originally Posted by QM

Quote:

Originally Posted by victorli428

Quote:

Originally Posted by chris719

I'd return them and get Ohlins R&T or M Performance suspension if you can. Dinan isn't what it used to be.

Yea I was considering Ohlins R&T or the m performance one but they were out of my budget at the time and I was happy with how the car handles stock

Seems like you have an installation issue. Go back to the shop and have them test drive it before you throw money at this or get misdirected to try something else. If they are an authorized Dinan installer hopefully they won't give you the run around. If they do, call Dinan directly. They are responsive. I went from stock to Dinan and like you said had the exact opposite experience. This is one of few suspensions that actually improve the ride on the street. You don't need any additional parts to make it compliant because it was designed to be compliant as is. This suspension uses linear (vs progressive) springs I believe, which helps make it compliant.

Thank you man, I did call them today and scheduled another appointment to have them check it out.

Anthony1s · 02-06-2019, 07:31 PM

Quote:

Originally Posted by victorli428

Yea I checked these two thread before I even bought the thing and Im confused rn.

You have Dinan sway bars too?

D22M2 · 02-06-2019, 07:34 PM

Had Dinan coilovers installed on mine… No such issues, it actually absorbs all the road imperfection a lot better than stock

AndrewC1989 · 02-06-2019, 08:14 PM

I have the KW height adjustable springs and have 0 complains. Ride is firm and car feels very planted. I'd reccomend them if you end up returning these and want a cheaper alternative to coilovers.

b18flip · 02-06-2019, 09:53 PM

Definitely have the shop take another look. I've had mine for about 1k miles and it's made an improvement in the ride quality over stock. Stock m2c on stock sway bars and stock struts

jackcc · 02-07-2019, 03:18 AM

How low did you set the car to? Could it be hitting bumpstops or too many “packers”? I got this suspension based on the reviews on this forum. And it’s been great; more planted in the corner, yet smoother on the street.

AnthraciteOG · 02-07-2019, 12:19 PM

Quote:

Originally Posted by Anthony1s

Quote:

Originally Posted by victorli428

Yea I checked these two thread before I even bought the thing and Im confused rn.

You have Dinan sway bars too?

No only the coilovers

AnthraciteOG · 02-07-2019, 12:19 PM

Quote:

Originally Posted by jackcc

How low did you set the car to? Could it be hitting bumpstops or too many “packers”? I got this suspension based on the reviews on this forum. And it’s been great; more planted in the corner, yet smoother on the street.

It is on the lowest setting and I'm gonna have the shop check again.

ZM2 · 02-07-2019, 07:17 PM

I haven’t heard anyone who actually has the Dinan suspension installed complain about this.

I’ve had it for almost two years and it’s way better than stock. Some of the guys compared it against KW HAS and liked Dinan more.

I’d just make sure the shop didn’t drop the ride height too much.

mr_lab_rat · 02-07-2019, 09:04 PM

coilovers or just height adjustable springs?

QM · 02-08-2019, 06:26 PM

Quote:

Originally Posted by mr_lab_rat

coilovers or just height adjustable springs?

Dinan "coilovers" are really just height adjustable springs. They reuse the stock shocks.

GoneIn4Secs · 02-12-2019, 11:17 PM

Quote:

Originally Posted by QM

Dinan "coilovers" are really just height adjustable springs. They reuse the stock shocks.

Is that the same case for the m perf suspension?

QM · 02-13-2019, 07:07 AM

Quote:

Originally Posted by GoneIn4Secs

Quote:

Originally Posted by QM

Dinan "coilovers" are really just height adjustable springs. They reuse the stock shocks.

Is that the same case for the m perf suspension?

M Performance suspension uses its own dedicated shocks.

02-06-2019, 01:07 PM	#1
AnthraciteOG First Lieutenant 397 Rep 358 Posts Drives: 2018 M2 Road & Track Build Join Date: Oct 2015 Location: US iTrader: (1) Garage List 2018 BMW M2 [0.00]	Weird Dinan coilover response, need help Hi guys, I just recently installed a set of Dinan adjustable coilover on my M2 and the car feels unplanted and bounces a lot compared to stock. When going over a bump the car feels like like its about to jump and Im getting the opposite of what people is saying about how the dinan coilover makes the car. The stock was more compliant over bumps and actually way comfortable than dinan. Please give me some help!
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02-06-2019, 02:15 PM	#2
Hankdoll Lieutenant 136 Rep 423 Posts Drives: M2/M3/4/5 Join Date: Jul 2005 Location: O.C., CA iTrader: (0)	Was it professionally installed? Alignment after? __________________
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02-06-2019, 02:48 PM	#4
Anthony1s Banned 756 Rep 2,149 Posts Drives: 2018 Mineral Grey M2 Join Date: Oct 2017 Location: Pennsylvania iTrader: (0)	There are at least three threads with discussion about this that I've read before, here are two that I quickly found. https://f87.bimmerpost.com/forums/sh....php?t=1560584 https://f87.bimmerpost.com/forums/sh....php?t=1546910 Seems like upgraded sway bars would help with the bouncyness, but no one has confirmed it yet.
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02-06-2019, 03:50 PM	#6
GoneIn4Secs Banned 1287 Rep 1,675 Posts Drives: BSM F87 LCI (DCT) Join Date: Jun 2018 Location: GTA iTrader: (0)	I have the M perf coilovers , they are great
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02-06-2019, 07:34 PM	#12
D22M2 Captain 1373 Rep 789 Posts Drives: Not a real M Car Join Date: Jun 2018 Location: Dublin , CA iTrader: (0)	Had Dinan coilovers installed on mine… No such issues, it actually absorbs all the road imperfection a lot better than stock
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02-06-2019, 08:14 PM	#13
AndrewC1989 Brigadier General 10911 Rep 4,541 Posts Drives: 2015 328d xDrive Join Date: Aug 2010 Location: NoVA iTrader: (5) Garage List 2015 328d xDrive [8.75]	I have the KW height adjustable springs and have 0 complains. Ride is firm and car feels very planted. I'd reccomend them if you end up returning these and want a cheaper alternative to coilovers.
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02-06-2019, 09:53 PM	#14
b18flip Private 131 Rep 91 Posts Drives: 09 328i xdrive Join Date: Aug 2009 Location: CT iTrader: (0)	Definitely have the shop take another look. I've had mine for about 1k miles and it's made an improvement in the ride quality over stock. Stock m2c on stock sway bars and stock struts
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02-07-2019, 03:18 AM	#15
jackcc New Member 20 Rep 14 Posts Drives: 2017 M2 LBB Join Date: Mar 2012 Location: Taiwan iTrader: (0)	How low did you set the car to? Could it be hitting bumpstops or too many “packers”? I got this suspension based on the reviews on this forum. And it’s been great; more planted in the corner, yet smoother on the street.
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02-07-2019, 07:17 PM	#18
ZM2 Brigadier General 2811 Rep 3,695 Posts Drives: 2017 LBB M2 Join Date: Mar 2017 Location: Baltimore iTrader: (1)	I haven’t heard anyone who actually has the Dinan suspension installed complain about this. I’ve had it for almost two years and it’s way better than stock. Some of the guys compared it against KW HAS and liked Dinan more. I’d just make sure the shop didn’t drop the ride height too much.
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02-07-2019, 09:04 PM	#19
mr_lab_rat Major 564 Rep 1,092 Posts Drives: 2017 M2, 2018 X1 Join Date: Jul 2017 Location: Vancouver iTrader: (0)	coilovers or just height adjustable springs?
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