Nissan 370Z Forum - Fortune Auto Coilovers for the 370Z *5 Year Warranty* *Design & Assemble In the USA*

FORTUNE AUTO 500 SERIES COILOVERS© (Occasional Track Use) -$1,199

500 series coilovers incorporate a DIGRESSIVE* piston, 24-step damping, custom rates & a five year warranty

500 Series coilovers are CUSTOM built to order.

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DIGRESSIVE* All Fortune Auto shock absorbers use Digressive piston technology. This technology allows for stiff low speed rebound force which helps give better control of driver inputs such as roll, dive and squat. However, at fast stroke speeds (i.e. high speed bumps) the suspension is kept supple in response to bumps and irregularities in the road.

*Dyno tested
*Mono-Tube damper with high pressure nitrogen
*24-step rebound adjustable dampers
*Spherical Bearings
*FA synthetic 5w or 10w shock oil (prevents cavitation and promotes superior heat dissipation)
*T6 6061 Forged & Anodized aluminum mounts and camber plates
*Bright Dip Anodized
*Height adjustment independent of pre-load
*Digressive piston technology
*5 year Manufacturer's Warranty (1 year on piston)
*Swift springs upgrade available
*Rebuild-able in the USA
*Revalve-able in the USA
*Modularity - Upgradeable to 2-Way Canister*

FORTUNE AUTO 510 SERIES COILOVERS© -$1,699

510 series coilovers incorporate a "ULTRA" DIGRESSIVE* piston, 24-way damping, custom rates & a one year warranty

510 Series coilovers are CUSTOM built to order.

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Incorporates all the great features of our 500 series coilovers. Furthermore it includes our new "Ultra" Double Digressive Pistons.

Featuring our new "Ultra" Double Digressive Piston (UDDP) with revised shim stacks, this "Ultra" Digressive piston allows for massive amounts of low speed rebound force that helps with driver inputs such as dive, pitch and roll. Furthermore, the rebound force greatly tapers off to provide the driver with "blow off" This helps with large impacts on track helping the vehicle stay settled after hitting curbing at high speeds. After countless hours on the shock dyno and testing on the track, we are proud to offer these high performance coilovers that rival many high end European shocks that cost several thousand dollars more. Due to the ultra digressive nature of this shock absorber, this product is recommended for track use only.

*Assembled in the USA
*Dyno tested
*Dyno graph supplied with all 4 shocks
*Mono-Tube damper with high pressure nitrogen
*24-step rebound adjustable dampers
*Asssembly certificate (documenting build & QC)
*Radial bearing mounts standard (on MacPherson)
*Spherical Bearings
*Amsoil synthetic shock oil (the ultimate in shock oil technology)
*6061 Forged & Anodized aluminum mounts and camber plates
*Bright Dip Anodized
*Height adjustment independent of pre-load
*"Ultra" Digressive piston
*Compliant track suspension solution
*5 year Manufacturer's Warranty (1 year on piston)
*Swift springs upgrade available
*Rebuild-able
*Revalve-able
*Modularity - Upgradeable to 2-Way Canister*

Optional Upgrades:

Radial Bearing Mounts (Just for 500 series, already included with 510) ($80)- This eliminates approximately 95% of the noise associated with camber plates on a strut vehicle.
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Swift Spring Upgrade ($350)- Better springs with amazing compliance.
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Rear Adjustment Extender ($45)- Easier rear damper adjustment.
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Fortune Auto Coilovers are truly one of a kind. More on this brand & the product:

Revised Jetting
When the Fortune Auto engineers designed the Generation 4 Series, they made it a priority to revise the jetting for more accurate damper control. The engineers also increased the adjustment range. Every click in the adjustment range now has a very profound effect on damping force and each click is very audible and distinct. We responded to our clients' comments regarding the lack of audible distinction in the clicking mechanism. Our desire is to constantly refine our products using the valuable feedback from our clients, so we have addressed this issue with our Generation 4 shocks.

Stronger Piston Shafts
The data we have compiled through our racing program has been thoroughly implemented in our new Generation 4 Series. The delicate science behind the strength of piston shafts can be difficult to perfect. If the shaft is too hard, it will be brittle and break easily, but if the shaft is too soft it will bend too easily. Through extensive R&D we were able to achieve an optimal balance between shaft hardness and malleability in the Generation 4 Series to ensure peak safety and performance.

Lower Friction Shaft Seals
The new Generation 4 shaft seals have 40% less drag than our previous models. This provides for less hysteresis and for superior control of driver inputs. Our new seals are made of a specially formulated Buna rubber compound that provides a great balance between reliability and performance! Since the shaft seal is the most important seal on the shock, a stronger seal will greatly improve quality and performance.

Improved Shaft Cap Design
Our new shaft caps utilize a twin O-ring design. Furthermore we have upgraded our rubber O-rings to Viton O-rings. The new Viton O-rings are made of a synthetic rubber compound which provides a superior tensile strength and a wider range of operating temperatures. This new design provides a superior seal preventing potential leaks from developing.

Structural Improvements
Utilizing our engineers' in-house design software we were able to revamp our whole line of suspension in the Generation 4 Series. We reinforced brackets and mounting points for more rigidity and strength.

Brake Line Brackets
Now most models will have OEM brake line tabs welded to the lower mounts. This provides the end user with a clean and safe install solution.

Digressive & Ultra Digressive Pistons
To ensure superior ride quality and driver control, the digressive piston technology on our 500 and 510 series has been carried over to the Generation 4 Series as well. All Generation 4 shock absorbers will continue to utilize our digressive piston technology on our 500 series models and ultra digressive piston technology on our 510 series models. Digressive piston technology allows for massive amounts of low speed rebound force that translates driver inputs into razor sharp control. Furthermore, the rebound force "blows off" to provide the driver with a supple and compliant ride while maintaining superior mechanical grip over rough surfaces.

Dyno-tuned and Tested
Our commitment to providing the best shock absorber in the market has not changed with the Generation 4 Series. EVERY shock absorber is still dyno-tested at our facility. We do not spot check our shocks like some other manufacturers. Once your shock absorber is built it is tested and matched. We refuse to treat our shocks with a “one size fits all” mentality. Our philosophy is simple: to provide our clients with a high quality, affordable, and personalized suspension solution.