ZMS Series Type RS4 4 way adjustable with external reservoir tank
(32 steps low speed/ 15 steps high speed rebound, 15 steps low speed & 15 steps high speed compression)
- ZMS-RS4 kit
Super Extreme Performance from Amazing Unique Design!
Accurate rebound and compression fine adjustment coupled with oil temperature stability via the external reservoir tank!
ZMS-RS4 kit – 4 way adjustable, 32 steps low speed/ 32 steps high speed on rebound, 15 steps low speed/ 15 steps high speed on compression, monotube coilover kit with external reservoir tank
Our flagship coilover kit for super street performance all the way to serious racing! The supreme coilover kit using 4-way adjustable monotube setup with external reservoir tank. Rebound control comes via the main damper dual piston system with compression adjustment controlled via the external reservoir for linear reaction to adjustment. Low speed rebound adjustment is 32 steps via oil flow and pressure through the piston controlled by a proprietary design oil pressure release valve. High speed rebound adjustment is 32 steps via the main piston rod needle, allowing for maximum accurate adjustability. Low and high speed compression adjustments are 15 steps each respectively via the external reservoir tank, thus allowing for near perfectly linear reaction to adjustments. Moreover the extra oil capacity in the external reservoir tank will allow for extra volume for cooling and thus avoid performance degradation from overheating of the shock fluid.
ZMS series dampers use two size pistons; 56mm external diameter (OD) cylinders utilizing 48mm OD pistons and 47mm OD cylinders utilizing 42mm OD pistons. There 3 different design pistons in 2 sizes for a total of six different piston types. Damper piston shims come in 10 different sizes for our ZMS series dampers. As a result, our shim tuning range is much wider compared to older model JIC and competitor manufacturer products. Damper rods are 16mm diameter with hard chrome coating. All pistons are fully CNC machined.
For our monotube dampers, larger diameter cylinders are made from 6061 aluminum and smaller diameter cylinders are made from 301 high strength stainless steel with a special stainless steel finishing coating giving an attractive natural titanium color. Our inverted monotube damper body cases are made of hard stainless steel manufactured using precision machining with specialized hard chrome surface coating. High precision cylinder bore honing production process and specialized surface coating allows all our products to meet the most stringent strength and performance requirements. This material choice and attention paid to surface finishing means that our products are designed and built for long life with exceptionally low piston wear and particular resistance to corrosion caused by rain, dirt, winter time road salt etc.
Most of our kits come with front upper mounts fitted with pillow ball bearings. Most of our kits for Macpherson strut applications will come with camber and caster adjustment system built in. All upper mounts are 40% thicker than before for added strength. Lower brackets are fully CNC machined to optimize weight savings and are anodized. All lower brackets are machined from hard aluminum and are height adjustable. Macpherson strut application lower brackets are designed for optimal strength to weight ratio by utilizing a H-beam design.
All ZMS-RS4 kits use a special blend of 100% synthetic oil for better and more stable performance. JIC USA/ ZIEL MOTORSPORTS INC. promises maintenance and tuning parts and technical support that is second to none.
- Oil flow Control via special design needle: Damper adjustment is via oil flow and pressure control using our proprietary designed need that optimizes oil flow smoothness and linearity.
3 different design pistons for focused application: We use in-house designed 48mm and 42mm large diameter aluminum pistons for better performance and easy tuning. Our pistons are fully CNC machined to exacting tolerances and recognizing that there is no one size fits all, we have designed 3 different types of pistons for use in street, tuned or race applications.
Cylinder Assemblies: To ensure uniform strength and accuracy of alignment throughout the vertical place for our cylinder assemblies, all cylinder top caps and cylinder case bottom caps are screwed on and locked in place before welding. This removes the problem of deviation of the alignment between body and cap during welding, providing a truly straight assembly with uniform high rigidity, thus reducing uneven wear on both the hard chrome and the damper case slide bearings and rod slide bearings.
Special thick hard chrome on cylinder bodies: All cylinder bodies are treated with a thicker than usual layer of hard chrome with the threaded damper case made from hard stainless steel to improve corrosion resistance and ensure longevity in use.
Rod Size and finishing: All rods are 16mm in diameter and treated with thick hard chrome to improve durability
Damper shims: 12 different size shims are used in our dampers allowing for fine tuning and giving our users a range of adjustability and tuning breadth unheard of in old model JIC and competitor manufacturer products.
Pillow Ball Upper Mounts: Most S series kits come with front upper mounts fitted with pillow ball bearings. Kits for Macpherson Strut applications come with camber and caster adjustment systems built in. All upper mounts are 40% thicker than before for added strength.
Lower Brackets: All lower brackets are machined from hard aluminum and are height adjustable. Macpherson strut application lower brackets are designed for optimal strength to weight ratio by utilizing a H-beam design.
Oil: All our S kits use a special blend of synthetic oil for better and more stable performance with optimized viscous stability of long and hard use.
Maintenance support and parts availability: All S kit customers will have access via our partners or ourselves to maintenance support and spare parts for rebuilding or customization.
ZMS series Type RS4 - external reservior tank mono tube suspension Kit4 way 32 step slow speed + 15 step high speed Rebound + 15 step hi speed + 15 step low speed compression adjustable
* Spring rate will change by the damper specifications and Intended use and custom order made request
Make Model Type Year Part # Spring Rate Spring Type Fr Upper Mount Re Upper Mount Fr Lower Mount Re Lower mount Accessories Note MSRP Detail Info Acura Integra Type-R 92-95 RS4-DC2TR-DS 14K/12K F Dual, R Single NSX NA1 91-00 RS4-NA1-DS 8K/12K F Dual, R Single BMW 3 series E46 M3 99-05 RS4-E46M3-DS 16K/12K F Dual, R Single E90 Non-M3 06-12 RS4-E90-DS 14K/10K F Dual, R Single E92 M3 06-13 RS4-E92M3-DS 16K/10K F Dual, R Single 5 series E60 M5 06-11 RS4-E60M5-DS 16K/10K F Dual, R Single Chevy Camaro MK5 10- RS4-CAMARO-MK5-DS 16K/12K F Dual, R Single Corvette C6 05- RS4-C6-DS 16K/12K F Dual, R Single Ford Mustang FOX4 99-04 RS4-FOX4-DS 16K/10K F Dual, R Single D2C 05-09 RS4-D2C-DS 16K/10K F Dual, R Single Honda Civic EG 92-95 RS4-EG-DS 14K/12K F Dual, R Single EK 96-00 RS4-EK-DS 14K/12K F Dual, R Single S2000 AP1 99- RS4-AP1-DS 16K/12K F Dual, R Single Lexus ISF USE20 06- RS4-USE20-DS 16K/10K F Dual, R Single Lotus Elise 05-12 RS4-ELISE-DS 8K/10K F Dual, R Single Mazda Miata NAB 89-05 RS4-NAB-DS 12K/7K F Dual, R Single MX5 NCEC 06- RS4-NCEC-DS 12K/9K F Dual, R Single RX7 FD3S 93-99 RS4-FD3S-DS 12K/7K F Dual, R Single RX8 SE3P 04-11 RS4-SE3P-DS 16K/9K F Dual, R Single Mini Mini Cooper R53 03-06 RS4-R53-DS 10K/8K F Dual, R Single R56 07-12 RS4-R56-DS 10K/8K F Dual, R Single Mitsubishi Evo7/8/9 CT9A 01-08 RS4-CT9A-DS 14K10K F Dual, R Single EVO10 CZ4A 09- RS4-CZ4A-DS 14K/10K F Dual, R Single Nissan 240SX S13 89-93 RS4-S13-DS Z32 R Fork 16K/12K F Dual, R Single S13 89-93 RS4-S13-DS 16K/12K F Dual, R Single S14 95-99 RS4-S14-DS Z32 R Fork 16K/12K F Dual, R Single S14 95-99 RS4-S14-DS 16K/12K F Dual, R Single 350Z Z33 03-08 RS4-Z33-LS 18K/14K Z33 03-08 RS4-Z33-PS 16K/13K Z33 03-08 RS4-Z33-RC 18K/14K 370Z Z34 09-12 RS4-Z34-LS 18K/14K Z34 09-12 RS4-Z34-PS 16K/13K Z34 09-12 RS4-Z34-RC 18K/14K GTR R35 09- RS4-R35-DS 18K/12K F Dual, R Single Porsche 944, 968 86-95 RS4-968-DS 16K/12K F Dual, R Single 964 Early 89-90 RS4-964E-DS 8K/11K F Dual, R Single 964 Later 91-94 RS4-964L-DS 8K/11K F Dual, R Single 986 97-05 RS4-986-DS 8K10K F Dual, R Single 987 06-11 RS4-987-DS 8K/10K F Dual, R Single 993 95-98 RS4-993-DS 8K/12K F Dual, R Single 996 C2 99-05 RS4-996-DS 8K/12K F Dual, R Single 996 GT3 01-05 RS4-996GT3-DS 8K/14K F Dual, R Single 996 TT 00-05 RS4-996TT-DS 8k/12K F Dual, R Single 997 C2 06-11 RS4-997-DS 8K/12K F Dual, R Single 997 GT3 06-11 RS4-997GT3-DS 8K/14K F Dual, R Single 997 TT, C4 06-11 RS4-997TT-DS 8K/12K F Dual, R Single Subaru STi GDB 05-06 RS4-GDB-DS 14K/9K F Dual, R Single GRB 07- RS4-GRB-DS 14K/12K F Dual, R Single Toyota BRZ ZN6 12- RS4-ZN6-DS 12K/9K F Dual, R Single Volks Wagen Jetta, Golf MK5, MK6 06-11 RS4-GOLF-MK5-DS 9K/6K F Dual, R Single
- Coming Soon