Description
Being a bespoke suspension specialist and not just your typical coilover kit company (i.e a trading company that buys mass-manufactured kits in bulk from Taiwan/China/Korea/Japan at a low cost), at YCW Suspension, we focus primarily on what makes-or-breaks a performance suspension system; the dampers. Or more specifically, not only the valving technology that goes inside them, but also the valving calculations necessary to meet the customers requirements.
Each and every damper that we spec for a customer is custom-valved and tuned specifically for that customer and his/her requirements; these are not just simply your typical coilover kit sitting on a shelf waiting to be sold. Infact, we don’t have a single coilover kit sitting on our shelves collecting dust. Our huge inventory consists solely of the individual components that make up our racing dampers, which is why we are able to offer both dry/unassembled dampers as well as fully assembled dampers (with an average 1-2 week lead time).
Recognising grassroots racers and their thirst for DIY, we also make available on our website each and every individual component for those who wish to assemble and/or service their own dampers; unlike our competition, this is something we actively encourage. Our aim with the YCW Suspension website is to offer a full knowledge base for grassroots racers to calculate, build and tune their own dampers to meet their requirements.
With the correct, high-quality components and our specialist tools, no longer is damper building/tuning a “Black Art” reserved for big-budget race teams; basic garage tools and a day getting your hands oily is sufficient enough to build a set of dampers that will outperform all the Taiwanese/Chinese/Korean/Japanese coilover kits currently plaguing the market. Infact, with a little bit of future investment (such as our Bleed Station) and practise, your dampers can outperform the majority of the “big brand” European/US kits as well, and you will never again have to pay another company hundreds of dollars to rebuild your dampers for you when servicing time comes.
Of course, not everyone wants to get their hands oily, nor have the technical inclination to do so, which is why we also offer fully assembled dampers.
To view the full technical specifications of what we have to offer, please click on the relevant tabs above (Dampers/Tuning & Assembly/Servicing/Warranty)
Tuning & Assembly
Valving
- Aeris – Designed for daily drivers and limited track use. Custom valving based on a 1 DOF (Degrees of Freedom) model, utilising your vehicle weight (stock or custom), preferred damping characteristics (steering response and body roll) and natural ride frequencies. Broad adjustment range. Includes basic technical/tuning support
- Reference – Designed for daily drivers and amateur track use. Custom valving based on a 2 DOF (Degrees of Freedom) model, utilising full chassis and tyre parameters, damping characteristics and natural ride frequencies. Choice of broad or targeted adjustment range. Includes 1 free rebuild/re-valve (shipping costs excluded) and basic technical/tuning support
- Argentum – Designed for amateur and semi-pro track use. Custom valving based on a 3 DOF (Degrees of Freedom) model, utilising full chassis, tyre and aero parameters, damping characteristics and natural ride frequencies. Choice of broad or targeted adjustment range. Includes unlimited free rebuilds/re-valves (shipping costs excluded) and full-spectrum technical/tuning support
- Aurum – Designed for semi-pro and pro track use. Custom valving based on a 4 DOF (Degrees of Freedom) model, utilising full chassis, tyre, aero and mechanical parameters (engine power and gear ratios), including dynamically simulated 7-post rig analysis for your preferred track, if available (we are constantly adding more track data to our in-house chassis software). Choice of broad or targeted adjustment range. Includes unlimited free rebuilds/re-valves (shipping costs excluded) and full-spectrum technical/tuning support
Bleed (this is what the compression/rebound adjuster changes)
- 1mm Bleed = ~7-9 clicks. Very targeted adjustment range. Only recommended if you know exactly what rebound forces you require
- 2mm Bleed = ~15-17 clicks. Targeted adjustment range. Recommended for track use only
- 3mm Bleed = ~23-25 clicks. Broad adjustment range. Suitable for street & track use
- 4mm Bleed = ~31-33 clicks. Default setup. Very broad adjustment range. Suitable for street & track use
- Please Note: Approximately 0.5mm of bleed adjustment (from previous setting) is required to physically feel any difference
Dimensions: Our dampers are fully-customisable with a large range of rod strokes and body lengths to choose from
- Rod Threads – 10*1.25mm, 12*1.25mm, 14*1.25mm
- Rod Diameters – 14mm and 20mm
- Rod Strokes – 85mm, 95mm, 110mm, 115mm, 135mm, 150mm
- Body Lengths – 180mm (Partial & Full Thread), 200mm (Partial & Full Thread), 215mm (Partial & Full Thread), 230mm (Partial & Full Thread), 250mm, 270mm, 300mm
Type
- Dry – Unassembled kit. You will be responsible for building your own dampers. Please click here to view our build tutorial. Lead Time – 3-5 working days
- Assembled – Each and every damper is individually vacuum-assembled, pressured-tuned and damper-matched (if applicable) on our MTS Roehrig 3VS Shock Dyno (dyno graph available upon request). To ensure the dampers meet our stringent quality standards, they are also QC-tested and run-in (10,000 cycles @ variable speeds and side loads) on our in-house Durability Tester. Lead Time – 1-2 weeks
Servicing
At YCW Suspension, we recommend (but not mandatory) the following servicing schedule for all of our Racing Dampers to ensure they always perform at optimum and as intended:
- Street Use/Limited Track – Approx. 20,000km
- Track Use – Every season
All YCW Suspension Racing Dampers are fully serviceable, with Service Parts always in stock and available for purchase either online or from one of our service facilities. With basic garage tools and a couple of specialist tools (also available for purchase), servicing your dampers can easily be done within an afternoon.
For those who would prefer to send in their dampers to be serviced by a YCW technician, servicing is provided at a discounted rate to the Original Purchaser. Otherwise, our standard rebuild service rate of $100 per damper + Parts & Shipping apply
Our rebuild service consists of:
- Disassembly and inspection of all non-wear parts. If necessary, parts will be replaced (chargeable if not Original Purchaser)
- Ultrasonic cleaning and polishing of all non-wear parts
- All O-Rings replaced with brand new BUNA & Viton O-Rings regardless of condition
- Valving is checked for consistency. If necessary, valving will be replaced
- Damper Fluid replaced with fresh Silkolene RSF 2.5w regardless of condition
- Damper(s) is tested on our MTS Roehrig 3VS Shock Dyno to check for valving consistency and seal-drag
- Damper(s) is QC-tested and run-in (10,000 cycles @ variable speeds and side loads) on our in-house Durability Tester
Warranty
Due to the nature of For Race Use Only products, YCW Suspension will provide a limited 1 year warranty on all racing dampers to be free of defects in materials and workmanship upon receipt of product and time of professional installation. It is the sole responsibility of the buyer/installer to verify the suitability for installation. Parts returned must be determined by YCW Suspension to be defective before any warranty credit or replacement is issued
YCW Suspension obligation under warranty shall be limited to repairing or replacing, at its option, any part proven defective. The customer must prepay transportation charges
Final determination of the suitability of the products for the use contemplated by the buyer is the sole responsibility of the buyer. YCW Suspension shall not be liable for any special, direct, indirect, incidental, or consequential damages, that might be claimed as a result of the failure of any part, including claims for delay, loss of profits, or labour
YCW Suspension shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty
There are no other warranties expressed or implied extending beyond those set forth above
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