Fortune Auto Mazda RX-7 (FC3S) 1987-1992 - 510 Series Coilovers
Fortune Auto is proud to release the all new Generation 7 – 510 series dampers. The advanced suspension technology found in our new shock absorbers is derived from recent successes in World Challenge, One Lap of America, and Global Time Attack. All systems are completely hand-built. We insist on building bespoke suspension in order to offer the best quality control in the industry.
 
 
Amsoil Synthetic Shock Oil
Concave Flow Digressive Piston Technology™
Custom Built – Assembly Certificate and Dyno Graph Supplied with Shocks
5 Year Limited Manufacturer’s Warranty
24-Step Simultaneous Rebound and Compression Adjustable Dampers
Monotube Damper with High Pressure Nitrogen
T6 6061 Aluminum Mounts and Camber Plates
Rebuildable and Revalveable at our Facility in Richmond, VA
Modularity – Upgradeable to 2-Way or 3-Way Canister
 
No Revalves Necessary
The ultra wide range of adjustment offered by the CFD piston allows for the convenience of tuning your suspension without having to revalve your dampers. A conventional shock absorber can withstand a 2kg spring rate difference before requiring a revalve, whereas the Concave Flow Digressive Technology has a broad range of 8kg spring rates. This is invaluable for tuning your suspension quickly at the track on race day.
 
Jekyll and Hyde 
The Concave Flow Digressive Piston allows for a Jekyll and Hyde personality. Lower spring rates can be stiffened up by using the wide damping range as an artificial spring rate, while higher spring rates feel much smoother. The large adjustment range contributes to a comfortable ride on the street and unyielding performance on the track, all with the twist of a single adjustment knob.
 
510 Series Coilovers are custom, hand-built to order. Most applications have a 3-4 week lead time. Lead times for certain applications and peak season orders may vary.
 
Spring Rate Selection
I've been setting up Canyon-Spec, Dual Purpose cars for the last decade as well as enjoying trackdays out tuning friends while they setup for various drift, time attack, or circuit driving.  Feel free to contact me on suggested spring rates to run these coilovers with.
 
The keen readers will notice that I'm starting my range at 8kg/mm instead of 4kg/mm like the 510s show on FortuneAuto's site.  This is because for a softer spring rate, I don't find a reason to upgrade to the 510s.  The 500 would be an adequate option for you on a softer spring rate.  Email me if you'd like the Aluminum Rear Damper Body Upgrade ($150) as I don't believe it to be absolutely necessary and do not wish to carry it.  Aluminum does however dissipate heat better, which is why it is an upgrade.  For harsh environments, I'll stick to steel.