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Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to thematerial structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.

The Super Alloy Engine valves represent the highest level of sophistication in valve technology. These valves are designed to handle the extreme heat requirements and punishment of today’s Nitro Fuels, Supercharged, Turbocharged, Nitrous Oxide, and Marine race motors.

Spring data:
Seat pressure [email protected]
Open (lift) pressure [email protected]
Max lift. 14.80mm
Rate 11.50lbs/mm
Spring coil bind 20.70mm
Outer spring outer diameter: 29.65mm
Outer spring inner diameter: 21.85mm
Inner spring outer diameter: 20.50mm
Inner spring inner diameter: 15.50mm

Set includes:
Dual springs: 16 pcs. SPR-H1005D
Titanium retainers: 16 pcs. RET-K20A2/T2

Vožtuvų spyruoklių duomenys
Sumontuotos spyruoklės spaudimas - 30kg
Pakėlimas - 100kg@13mm
Maksimalus pakėlimas - iki 13mm
Pagaminta iš chromo silikono plieno SAE9254-V
16 vnt. išorinių spyruoklių
16 vnt. vidinių spyruoklių
16 vnt. titanių viršutinių lėkštučių
16 vnt. apatinių lėkštučių
Tinka Opel / Vauxhall 4-ių cilindrų 2.0 16V X20XE, Z20LET, Z20LEH varikliams.
Rekomenduojama naudoti, kai variklio sūkiai viršija 7600aps/min.

Product detailed specification
Model number	NEVI-1005/7
Head diameter	30.15mm
Stem diameter	6.94mm
Length	102.40mm
Material	Inconel
Fits for	Nissan 200SX S14 - 2.0 16V (SR20DET)

Springs data:

Seat pressure - 70lbs @ 33.6mm
Open (lift) pressure - 163lbs @ 10mm
Spring coil bind - 22.20mm
Rate - 9.70lbs/mm
Max lift - 11.40mm
Outer diameter: 23.50mm/16.50mm
Inner diameter: 19.30mm/12.30mm

Set includes:
Beehive springs: 16 pcs. SPR-MC56BE
Titanium retainers: 16 pcs. RET-MC56/T1

Spring data:
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm
Seat pressure - [email protected]
Spring coil bind - 20.70mm
Rate - 12.10lbs/mm
Max lift - 14.50mm

Set includes:
Dual springs - 16 pcs. SPR-M1015
Titanium retainers - 16 pcs. RET-TS55-T1EX
Seats - 16 pcs. SEAT-M1015-1 + OEM

Product detailed specification
Model number	HIVN-100F
Head diameter	33.00mm
Stem diameter	5.48mm
Length	102.50mm
Material	Black nitrited stainless steel
Fits for	Honda B16A B17A B18C

Product detailed specification
Model number	BMEVI-1054S-HS-1
Head diameter	28.50mm
Stem diameter	5.95mm
Length	114.90mm
Material	Sodium filled
Fits for	BMW E60, E90, E91, E92, E93, E82, E88, E89, X6, Z4, F01 (N54B30)