Now front two fingers, behind two and half(max already). And front will knock if bump is sharp...The spring cannot tune according to foreman. I think is normal for short spring, just have to driver slower.
First Impression: RCS Suspension - Velocity Sensitive Dampers
- Thread starter Tom
- Start date
How many ways adjustment do your suspension have?
As per picture above, my front suspension. Lower detach part is for height adjustment.
In the middle of the suspension right at the bottom of red springs, that is to adjust spring tension. Tighten more and can still go higher, until damper shaft max height, by then very tight already.....hahhahha
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The set I got is normal one, only can adjust height by adjust spring tension.How many ways adjustment do your suspension have?
As per picture above, my front suspension. Lower detach part is for height adjustment.
In the middle of the suspension right at the bottom of red springs, that is to adjust spring tension. Tighten more and can still go higher, until damper shaft max height, by then very tight already.....hahhahha
Readjust to 2.5 front and 3 behind today.
Thanks for providing your feedback jonnip and Zanskie for informing the name change.
To be honest, I haven't been in touch with RCS for quite some time, years maybe.
I agree with Jonnip on a few points.
RCS products perform at their best when new or just serviced, and unfortunately so, that exact spot on sensation lasts at best for a week and deteriorates over time at an exponential rate. Servicing it preserves the performance but at the same time causes it to deteriorate faster as well.
I have yet to determine why this is so, It could be the extremely low ride height I was running on, the compressed air nipple on the body of the shock perhaps, the disassembling and reassembling process, etc etc.
However, my opinion still stands (as of time of this post),
I have yet to experience another aftermarket/custom suspension set that had performed this well before. If only it were able to last.
To be honest, I haven't been in touch with RCS for quite some time, years maybe.
I agree with Jonnip on a few points.
RCS products perform at their best when new or just serviced, and unfortunately so, that exact spot on sensation lasts at best for a week and deteriorates over time at an exponential rate. Servicing it preserves the performance but at the same time causes it to deteriorate faster as well.
I have yet to determine why this is so, It could be the extremely low ride height I was running on, the compressed air nipple on the body of the shock perhaps, the disassembling and reassembling process, etc etc.
However, my opinion still stands (as of time of this post),
I have yet to experience another aftermarket/custom suspension set that had performed this well before. If only it were able to last.
Oh! means you have the Hi Lo one only....
---------- Post added at 08:37 AM ---------- 6 hour anti-bump limit - Previous post was at 08:35 AM ----------
Wah! means very good for race day then rebuild....
not saying low quality...maybe they used average quality oil where usually suspension is high precision parts need the best oil available...Custom made woh! use low quality oil?
or need to setup the valving/oil grade choosen need to take account the running-in/break-in period...
or maybe just the case that the nitrogen gas leaks thru the air valve?? :hmmmm::hmmmm::hmmmm:
just my assumption....
You make it sound like those fast easy mod, drill hole at bottom, pump in 20w-50 oil to harden the suspension......hhahahhahahhahahanot saying low quality...maybe they used average quality oil where usually suspension is high precision parts need the best oil available...
or need to setup the valving/oil grade choosen need to take account the running-in/break-in period...
or maybe just the case that the nitrogen gas leaks thru the air valve?? :hmmmm::hmmmm::hmmmm:
just my assumption....
Yah! true also, have to check what the real fault is....
You make it sound like those fast easy mod, drill hole at bottom, pump in 20w-50 oil to harden the suspension......hhahahhahahhahaha
Yah! true also, have to check what the real fault is....
i prefer castrol edge 10w-60 oil
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?
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....
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....
As far as I know fork oil is hydraulic oil, and hydraulic oil very light viscosity.....
hydraulic oil thicker than fork oil usually rite? never tought of using that.... (*abandon that...i thought manual gearbox oil) :lol:
since motul fork oil works fine for our application...so just keep using that for now
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.
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.
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 :):):)
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Hi marv3, what was the car that you intended to try out with RCS dampers back then?
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.
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.
Yes they are, but there's been changes in management but I don't know if the product is the same.
Wow, never heard of them, but what interests me is this "First test, going over the speed hump at insane speeds. Though by itself doesn't justify performance as a whole, is a good way of highlighting the ability of the Velocity Sensitive damper. It is a surreal sensation, almost mind-blowing. I expected the top mounts to explode through the bonnet but the Subaru didn't even squeak. It remained almost flat. "
