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First Impression: RCS Suspension - Velocity Sensitive Dampers

Discussion in 'News and Features' started by Tom, Aug 16, 2011.

  1. vr2turbo

    vr2turbo Moderator
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    You make it sound like those fast easy mod, drill hole at bottom, pump in 20w-50 oil to harden the suspension......hhahahhahahhahaha:rofl:

    Yah! true also, have to check what the real fault is....:driver:
     
  2. ^pomen_GTR^

    ^pomen_GTR^ Senior Member
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    i prefer castrol edge 10w-60 oil :nurse:
     
  3. Tom

    Tom Administrator
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    That I am unsure, I noticed they use Silkolene products.
    Some people suspect it could be a leaking compressed air nipple that caused the compressed air section within the shock to fail prematurely. Many other manufacturers uses a sealed system rather than the air nipple.

    regarding the oil part, it could just be a case of bad quality seals?
     
  4. ^pomen_GTR^

    ^pomen_GTR^ Senior Member
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    seal are less unlikely be a problem unless it causing the external leak...




    in my experience in tuning small bike's suspension (fork and absorber)

    most problem would be due to oil degradation and or leaking pressurised gas.....



    me personally use fully syn race engine oil or special racing fork oil from motul for that task....

    been using normal engine oil during early trial-error part....getting complains from friends it loose the firmness after a few week.... (due to normal oil in the fork)....and all were good again after switching to better oil......

    thats why i think mainly due to oil and/or leaking gas pressure....hence the oil sloshing around inside the tube and wont work as good as it was new.... :adore:
     
  5. vr2turbo

    vr2turbo Moderator
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    Engine oil? I thought you need hydraulic oil for suspension, right?
     
  6. ^pomen_GTR^

    ^pomen_GTR^ Senior Member
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    depends on the viscosity needed....usually with tight valve hole size we run, engine oil or fork oil was sufficient enough.....to thick oil will result the suspension over damped massively....
     
  7. vr2turbo

    vr2turbo Moderator
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    As far as I know fork oil is hydraulic oil, and hydraulic oil very light viscosity.....
     
  8. ^pomen_GTR^

    ^pomen_GTR^ Senior Member
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    hydraulic oil thicker than fork oil usually rite? never tought of using that.... (*abandon that...i thought manual gearbox oil) :lol: :rofl:

    since motul fork oil works fine for our application...so just keep using that for now
     
  9. marv3

    marv3 Active Member

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    Whoaaaa....Didnt realize this thread came back to life. Shocking to hear. I just spoke to Feezam couple of months back and he told me they just moving office.

    And now got new updates on the product. Is kind of a bummer to hear some for of negative feedbacks. Was really interested in this initially.
     
  10. Zanskie

    Zanskie New Member

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    Turns out that the rear suspension bushings worn out, modded front lower arm (bearings) also gone. Had them replaced and now im driving with peace of mind :):):)

    Sent from my GT-I9500 using Tapatalk
     
  11. flavalava

    flavalava Senior Member
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    Hi marv3, what was the car that you intended to try out with RCS dampers back then?
     
  12. vr2turbo

    vr2turbo Moderator
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    Bro. marv3 ride is the PUG 408T
     
  13. Saros

    Saros Senior Member
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    Huh, didn't know this thread existed.

    short story:
    majority of issues resolved, go talk to Feezam if you've having them. They are more than willing to help.

    Long story:
    I looked for RCS/RDS because with my previous car, I tried several big name "brands" and was never happy. The car never felt grippy. Sure it felt firm, stable, but when you push the limits, they come really quick and mercilessly. I crashed that car eventually. I didn't even see it coming, it just snapped loose during normal driving and I thought I was a goner when I went into the opposite lane. I survived (obviously), but the car was in a bad way.

    I knew something wasn't right. I knew that stiff suspension wasn't the answer. I returned the car to stock when I had it repaired and immediately it had more grip, and more roll. But it always seemed to have an odd feeling, didn't seem to want to follow my steering properly. I suspect some serious damage was done that wasn't fixed. I decided to get rid of the car and started a new journey.

    After I got my MX-5, I started looking for suspension options. I sat and drove quite a number of MX-5s with again, "big brand" suspension names. And I felt the same same snappy response with lack of grip when pushed to the limits (please do it in a safe environment and not on public roads). I was really frustrated because the stock suspension makes the car look like a 4WD (google stock MX-5 NC ride height and you'll see what I mean).

    So, enter RCS. blahblahblahsetupblahblahblahinstallblahblahfinetuneblahblah.

    And now I've been using my RCS one-way adjustables on my 2012 MX-5 NC for about two years+

    I track the car, autox, gymkhana, on all types of surfaces (some of our roads can be called rally tracks...). I rebuild the dampers about once/twice a year (depends on my usage). The oil does pick up carbon from seals and whatnot and eventually the viscosity changes (the new seals seem to mitigate this a lot though). The oil is a CRITICAL component and I consider it wear and tear with a limited lifespan.

    You must understand that this is a true performance product. This is not your typical "give you a stiffer ride feeling with low body roll" suspension. The tolerances are REALLY tight. If you've watched them build a set you know what I mean. Now compare to what you see being built from other brands, I won't need to mention names, see for yourself. Ask them how much it costs to rebuild as well.

    There are no cheapo supplies being used. I saw cheap oil being mentioned, uh... nope. Unless you call Fuchs Silkolene cheap. I work with them closely on my requirements and I've personally handled all their components. They are anything but cheap.

    I don't pretend to understand everything about suspension but let me tell you, once you drive RDS, other suspension just seems unsuitable and lack of grip. Nowadays when I hitch a ride in a random car at RDS, I can tell immediately, within the first five-seconds, sometimes even while the car is just reversing out of car park, that it's using RDS suspension. It just has that feel that the tyre is permanently and evenly stuck to the ground.

    Take a ride in one of their cars. I promise you'll be amazed.
     

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