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Renault F4R 2.0 16v Supertech Dual Spring & Retainer Kit  488.58 
Ex Tax of 20% 

Overview

Valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms and better memory.
Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions.Computer software also allows us to make sure that the harmonics arewell under control.
The Retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.

Specification

 

Part Number

SPRK-TS1012-F4R

SPRK-TS1015-F4R
Engine Type Renault F4R 2.0 16v Renault F4R 2.0 16v
Outer Spring Diameter

27.5mm OD
20mm ID

27.5mm OD
20mm ID
Inner Spring Diameter

20mm OD
15.2mm ID

20mm OD
15.2mm ID
Spring Pressures (lbs@mm)

Seat - 72 @ 34
Open - 168 @ 10

Seat - 83 @ 34
Open - 204 @ 10

Spring Coil Bind

20.7mm 20.7mm
Spring Max Net Lift

13.3mm

13.3mm
Spring Rate lbs/mm

9.6mm

12.1mm
Kit Includes:
  • Springs
  • New seats
  • Titanium Retainers
  • Springs
  • New seats
  • Titanium Retainers

 

Available Options:
F4 Spring options:
SPRK-TS1012/F4R 
SPRK-TS1015/F4R 
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