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#1 |
S5, Sport Off, DSC M-track
![]() Join Date: Aug 2009
Location: Surrey
Posts: 634
Casino cash: $4900 ![]() |
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Got an update on my Nitron saga.
So, as many of you know I have the NTR Sport Kit with Turner Motorsport Top mounts, making it a hybrid Sport Plus kit. Anyway, after months of being unhappy with the handling of the car and the knocking noises which I never got to the bottom of, I decided to sell them and get a KW clubsport kit...so I popped an ad up on Pistonheads. Last week I got an email from Nitron asking why I would want to swap their kit for KW's etc (they had seen my ad on PH), I replied to him and basically outlined all the issues i'd had with the kit and that I was unhappy with the way the car was etc. He replied several times over the weekend, he even copied in the technical guy I had been speaking to (Ben) regarding the kit. Basically the long and the short of it is, they don't want me to go to another suspension manufacturer, so they are going to set me up with full coilover rear units, matched to my front suspension, so new springs, helpers, perches etc, they are going to install it at their race workshops, re-camber, redo the geo and then perform another corner weighting session for me, all for a nominal charge, which is pittance compared to how much what they are doing for me is truly worth. I have to say, in a world where customer service is falling apart, this is quite the opposite, all this from seeing my PH ad and finding out why I was unhappy with their suspension, to basically giving me a lot of upgrades and it's gone a long way to restoring faith, they didn't have to bother to say anything nor to help me out, so for that I am very impressed. Roll on next week, i'm confident my car will be just as I want it after this ![]() |
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#2 |
CSL Register Uber-poster!
![]() Join Date: Sep 2009
Location: Cambridge
Posts: 6,460
Casino cash: $27763 ![]() |
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Sounds very impressive and hats off to the Nitron crew for their most generous offer
![]() Keep us posted on the progress.
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![]() UK CSL No.020 ... after 7 years of ownership ![]() ![]() |
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#3 |
S5, Sport On, DSC M-track
![]() Join Date: Sep 2007
Location: Portsmouth/Reading
Posts: 1,292
Casino cash: $9290 ![]() |
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I could have done with service like that
__________________
Ashley Shaeffer BMW - Wooo |
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#4 |
S6, Sport On, Traction Off
Join Date: Feb 2012
Location: Somerset
Posts: 1,577
Casino cash: $4530 ![]() |
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That's a bloody result. Example to all regarding looking after your customers!
![]() Hoping your happy with the new kit & handling on rails... Let us know |
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#5 |
S5, Sport Off, DSC M-track
Join Date: Apr 2008
Posts: 740
Casino cash: $14401 ![]() |
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Hi,
Please correct me if I am wrong on this from what was posted- You have a Nitron Kit which was Coilover front, spring shock rear, and when it was first fitted Nitron did full Geo and Corner weighted the car, ? Then for why or what, Nitron agree to replace rear Spring / Shock set up, with full rear coilover, and then do another Geo and another Corner weight session when new rear is fitted ? Is that correct please ? Regards, The Gorilla. Last edited by The Gorilla; 09-07-2012 at 06:07 PM. Reason: Missing word |
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#6 | |
S5, Sport Off, DSC M-track
![]() Join Date: Aug 2009
Location: Surrey
Posts: 634
Casino cash: $4900 ![]() |
![]() Quote:
Yes, I have the NTR Sport Kit, with TMS top mounts, it is coilover front, but retails the barrel spring / separate shock in the rear with ride height perches, aka KW V3's etc. I fitted the kit myself as I find that of thing quite simple, tried to set the car lower than standard but by not much, I was more interested in the rear being 10mm lower than the front. So I had problems in the following areas: 1/ Ride Height, I could not get the rear ride height any lower than standard, wheelarch to bottom of rim was 606mm which is just above the KDS target. 2/ I also had rear knocking coming from the rear spring perches, so I bought new perches and rubber gaskets, knocking never went away. 3/ I then had the rear shocks serviced on the advice of Nitron technical support, unfortunately this made no difference to the knocking nor the ride height as was expected. 4/ The car felt very unstable at any speed over 70, this was because it was too high at the rear, so the car was raked over the front, if I raised the front, the ride height was similar to a standard E46 M3. So I had a multitude of problems, I took the car to Simpsons, they re-set the ride height (603mm f&r), had a geo done, the camber sorted and a full corner weighting. Again, the car felt unstable at speed, leaving me with no confidence in the handling. So, I took it all back off, now back on standard suspension for now till this gets sorted. Basically, the phone calls I have had from Nitron (Technical support and even one of the suspension chief engineers), they want to put a coilover on the rear, as the CSL is apparently optimal on this in terms of their products, so that is perches, spring and helper springs, the shock itself can accomodate this as all their products are modular. My understanding of the kit I have after discussions with them, is that it is more suited to a normal M3 rather than a CSL, so if you have an additional 10% weight on the normal M3, they will be lower etc. They are going to take off my old suspension, make the changes to the rear shocks, then re-install the coilovers, set the ride height (the coilover rear should give me more adjustment), perform a geo and re-corner weight the car, basically taking me to the next kit up from what I originally purchased. They have said (which I have in writing), that if I am not happy with the changes, they will reimburse me for the money I am paying for this work, which seems entirely very good of them to do this. Last edited by phoenixcsl; 09-07-2012 at 06:36 PM. |
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#7 |
S5, Sport Off, DSC M-track
Join Date: Apr 2008
Posts: 740
Casino cash: $14401 ![]() |
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Hi,
Quote - ''My understanding of the kit I have after discussions with them, is that it is more suited to a normal M3 rather than a CSL'' I am really struggling to understand how or why an acknowledged respected Suspension supplier would even suggest this ? The gross weight difference between the respective cars for the type of use being discussed is negligible, even more so when you consider that the main differences between the 2 cars is slightly shorter front springs. The difference between the std damper rates does not make a slightly lighter car unstable at speed, and if this ''Kit'' is as well honed and dialled in on std M3, which given the remarks so far, I would seriously question, then making it work on a slightly lighter version of the same car should not be difficult. In not knowing all the facts or components I would still say that if you had left their Kit on the front and returned the car to the std suspension on the rear only, then you would not experince the handling issues that you have. I would guess that the spring / shock rates of their kit are out, and from what you have said they are to hard. The rear needs to be compliant and thus a softer rear will assist, even more so if the front has been made stiffer. Altering the rear ride height by lowering the car, even by just a few mm does nothing much to alter a spring rate that is to hard, and thus the rear will ''skit' at speed, as their is little compliance left in the rear dampers, they are unable to function as being retsricted by the hard springs and its the tyre side walls now being asked to do most of the work. On a Road/ Track car that is never really going to happen at 30/35 tyre profile. In F1 now most the leading teams run mega hard front with really soft rear, even some RWD Touring Cars are now adopting to very stiff front end, either via dampers or very large front ARB's with much softer rears. I would also guess that with their original 'kit' fitted you would have improved the handling by undoing one of the rear ARB links and letting the rear float. Bit like taking the rear ARB off in the wet. I have no doubt that your car will be better handling with their ''coilover' rear fitted, as they can a] alter spring rates, b] fit tenders/helpers and mains, and c] acheive this at the ride height required. Incidentally does or did the original kit come with adjustable ARB drop links front and rear ? Regards, The Gorilla. |
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