Coilover Recommendation

flipm3 · 12-04-2013, 06:51 PM

I am just about ready to finally step up and try out a "high end" damper and was looking to seek some advice from the good people of CSLRegister.

My E46 M3 is primarily a road car, but does see roughly 5 track weekends a year. In all honesty, I prefer a damper that will be comfortable on the terrible roads I frequently encounter, but still offer optimal performance at a lowered ride height.

I have gone through several "entry" level coilovers and their valving just really left something to be desired.

My current list of choices are the following in the priority order:

Ohlins R&T
Motion Control Suspension Single Adjustable
JRZ RS1
Intrax IK2
Nitron R1

I'm reaching out to you all to mostly hear your feedback on the comparison between Intrax and Nitron. Information and knowledge is rather limited out here in America and these two seem to be a popular choice in the UK and throughout Europe.

My car is driven all year round and I would prefer something that is a bit more resilient to snow/salt.

How often do these setups need rebuilds?
How are their street characteristics?
Any downside to running a true rear coilover with a reinforced rear shock tower?

Any advice would be greatly appreciated.

Thanks!

northernjim · 12-04-2013, 07:25 PM

I have Intrax on my daily M3 cs

I do about the same as you 5 tracks a year, Intrax are fantastic on track, plenty of adjustability , and I just set them full soft for the terrible local road surfaces - Am thinking about using 18's for daily use to further soften the ride ( I don't drive fast on the road anymore - I don't see the point! )

I would say they are not the most robust against the winter salt ( my old kw v3were better in this respect) - And do need a little tlc to protect, and keep them in tip top condition all year round

**cantfind1** · 13-04-2013, 12:48 AM

I wouldn't go with Nitron or Intrax....too hard for what you are after and the intrax will not survive weather like snow and ice without yearly rebuilds....The nitron survive better but again I think they will be too firm for you plus the solid mounts at the rear tend to knock after a while...I use them....they are great bits of kit but mine is a purely track car....

I would go with something like KW or Bilstein.....do not put a proper coilover at the rear you don t need to....

If you want to spring for the ohlins then do so but again I think they will be too firm and also not stand up to the salt and snow....

My best bet would be KW, they are pretty bullet proof and stainless steel....

The Gorilla · 13-04-2013, 12:05 PM

Hi,

Dampers, one man's like is the
dislike of another.

For Road use and the odd Track day,
the std set up with better progressive
springs and adjustable camber plates is
a very effective set up.

Some say to hard for daily while some argue
to soft.

If you feel that Road / Track Adjustability is
must have, the Intrax 'HSA' with the
softer springs but the Track Valving is
a good option.

Car's sit on the springs and its the dampers and
Bars, when set up properly, that do the work.

Regards,

The Gorilla.

flipm3 · 13-04-2013, 12:45 PM

Thanks for the replies and advice. I probably should have listed the coilovers I've tried in the past.

I have tried Stance GR+ (similar to HSD), KW V2, and KW V3 with KW Competition Valving. I found all three to only be somewhat acceptable considering that the valving really left something to be desired. Despite countless tweaks of ride height and rebound/bump adjustment, they were just not soaking up bumps on the road that I know a proper damper should.

I have ridden in cars with JRZs and Motons on the street and with appropriate spring rates, I realized that a real race damper can really be a dual killer setup. Coincidentally, I noticed a lot of the higher end race dampers offer solid entry level dampers (MCS S/A, JRZ RS1, Ohlins R&T, Intrax HSA or IK2, and Nitron R1).

I did think about spending considerably less and just getting brand new OE non-CSL dampers and Eibach springs, but in my experience, the OE dampers just lose it's valving performance rather quickly. Performs great early in its lifetime but really plummets in performance over time.

The number of days I spend on the track has simply decreased due to change in profession and allotted free time. After discussing with a lot of peers, they all recommend I go with the "best" damper that I simply can afford.

Considering the Intrax and Nitron setups aren't very common here in the States, I was rather curious to hear more feedback on how these coilovers perform as a dual nature setup.

Thanks again for all the help! Looking forward to hearing more!

The Gorilla · 13-04-2013, 01:02 PM

Hi,

Using proper''Race'' Dampers on the road
does 2 things, makes for shocking ride and
prematurely reduces their life span.

For any Damper to ''soak'' up bumps as
you describe and then be able to handle
1 + lateral G on Track without excessive
body roll ain't never going to happen.

Its your choice, good road handling characteristics
or compliant and predictable on Track.
If you discover anything that comes remotely
close to doing both, you will have discovered a first.

Regards,

The Gorilla.

12-04-2013, 06:51 PM	#1
flipm3 Wonky 'L' after Washing Join Date: Sep 2011 Posts: 12 Casino cash: $446	Coilover Recommendation I am just about ready to finally step up and try out a "high end" damper and was looking to seek some advice from the good people of CSLRegister. My E46 M3 is primarily a road car, but does see roughly 5 track weekends a year. In all honesty, I prefer a damper that will be comfortable on the terrible roads I frequently encounter, but still offer optimal performance at a lowered ride height. I have gone through several "entry" level coilovers and their valving just really left something to be desired. My current list of choices are the following in the priority order: Ohlins R&T Motion Control Suspension Single Adjustable JRZ RS1 Intrax IK2 Nitron R1 I'm reaching out to you all to mostly hear your feedback on the comparison between Intrax and Nitron. Information and knowledge is rather limited out here in America and these two seem to be a popular choice in the UK and throughout Europe. My car is driven all year round and I would prefer something that is a bit more resilient to snow/salt. How often do these setups need rebuilds? How are their street characteristics? Any downside to running a true rear coilover with a reinforced rear shock tower? Any advice would be greatly appreciated. Thanks! __________________ 2002 E46 M3 6MT \| Jet Black . Black Nappa \| My Build Thread Evolve Automotive CF Airbox & AlphaN . Supersprint V1 Stepped Headers & V1 SPipe . Schrick 288/280 . Volk Racing TE37

12-04-2013, 07:25 PM	#2
northernjim Driving it like I nicked it Join Date: Oct 2008 Location: lancashire Posts: 2,082 Casino cash: $20572	I have Intrax on my daily M3 cs I do about the same as you 5 tracks a year, Intrax are fantastic on track, plenty of adjustability , and I just set them full soft for the terrible local road surfaces - Am thinking about using 18's for daily use to further soften the ride ( I don't drive fast on the road anymore - I don't see the point! ) I would say they are not the most robust against the winter salt ( my old kw v3were better in this respect) - And do need a little tlc to protect, and keep them in tip top condition all year round __________________

13-04-2013, 12:45 PM	#5
flipm3 Wonky 'L' after Washing Join Date: Sep 2011 Posts: 12 Casino cash: $446	Thanks for the replies and advice. I probably should have listed the coilovers I've tried in the past. I have tried Stance GR+ (similar to HSD), KW V2, and KW V3 with KW Competition Valving. I found all three to only be somewhat acceptable considering that the valving really left something to be desired. Despite countless tweaks of ride height and rebound/bump adjustment, they were just not soaking up bumps on the road that I know a proper damper should. I have ridden in cars with JRZs and Motons on the street and with appropriate spring rates, I realized that a real race damper can really be a dual killer setup. Coincidentally, I noticed a lot of the higher end race dampers offer solid entry level dampers (MCS S/A, JRZ RS1, Ohlins R&T, Intrax HSA or IK2, and Nitron R1). I did think about spending considerably less and just getting brand new OE non-CSL dampers and Eibach springs, but in my experience, the OE dampers just lose it's valving performance rather quickly. Performs great early in its lifetime but really plummets in performance over time. The number of days I spend on the track has simply decreased due to change in profession and allotted free time. After discussing with a lot of peers, they all recommend I go with the "best" damper that I simply can afford. Considering the Intrax and Nitron setups aren't very common here in the States, I was rather curious to hear more feedback on how these coilovers perform as a dual nature setup. Thanks again for all the help! Looking forward to hearing more! __________________ 2002 E46 M3 6MT \| Jet Black . Black Nappa \| My Build Thread Evolve Automotive CF Airbox & AlphaN . Supersprint V1 Stepped Headers & V1 SPipe . Schrick 288/280 . Volk Racing TE37

13-04-2013, 12:48 AM	#3
cantfind1 S5, Sport Off, DSC M-track Join Date: Oct 2009 Location: Sydney Australia Posts: 675 Casino cash: $6490	I wouldn't go with Nitron or Intrax....too hard for what you are after and the intrax will not survive weather like snow and ice without yearly rebuilds....The nitron survive better but again I think they will be too firm for you plus the solid mounts at the rear tend to knock after a while...I use them....they are great bits of kit but mine is a purely track car.... I would go with something like KW or Bilstein.....do not put a proper coilover at the rear you don t need to.... If you want to spring for the ohlins then do so but again I think they will be too firm and also not stand up to the salt and snow.... My best bet would be KW, they are pretty bullet proof and stainless steel....

13-04-2013, 12:05 PM	#4
The Gorilla S5, Sport Off, DSC M-track Join Date: Apr 2008 Posts: 740 Casino cash: $14401	Hi, Dampers, one man's like is the dislike of another. For Road use and the odd Track day, the std set up with better progressive springs and adjustable camber plates is a very effective set up. Some say to hard for daily while some argue to soft. If you feel that Road / Track Adjustability is must have, the Intrax 'HSA' with the softer springs but the Track Valving is a good option. Car's sit on the springs and its the dampers and Bars, when set up properly, that do the work. Regards, The Gorilla.

13-04-2013, 01:02 PM	#6
The Gorilla S5, Sport Off, DSC M-track Join Date: Apr 2008 Posts: 740 Casino cash: $14401	Hi, Using proper''Race'' Dampers on the road does 2 things, makes for shocking ride and prematurely reduces their life span. For any Damper to ''soak'' up bumps as you describe and then be able to handle 1 + lateral G on Track without excessive body roll ain't never going to happen. Its your choice, good road handling characteristics or compliant and predictable on Track. If you discover anything that comes remotely close to doing both, you will have discovered a first. Regards, The Gorilla.