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Supertech

Supertech Valve Springs & Ti Retainers Kit VW Audi 1.8T 20v AEB A4 SPRK-AUDI18T

Supertech Valve Springs & Ti Retainers Kit VW Audi 1.8T 20v AEB A4 SPRK-AUDI18T

SPTSPRK-AUDI18T

$586.94 USD
$733.51 USD $586.94 USD
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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.

**Kit includes:**
12 Intake springs
8 Exhaust springs
12 Intake Titanium retainers
8 Exhaust Titanium retainers
8 Exhaust valve seats

Part numbers

SPRK-AUDI18T

 

Spring Diameter **Inlet**

20.6mm OD
14.4mm ID

Spring Diameter **Exhaust Double**

29.1mm OD (outer)
21.9mm ID (outer)
20.5mm OD (inner)
15.5mm ID (inner)

Inlet spring Pressures (lbs@mm)

Seat - 56 @ 36.6
Open - 125 @ 10.5

Inlet spring Max net lift

13.6mm

Inlet spring Coil bind

23mm

Inlet spring Rate lbs/mm

6.7mm

Exhaust spring Pressures (lbs@mm)

Seat - 80 @ 33.2
Open - 185 @ 10.5

Exhaust spring Max net lift

13.7mm

Exhaust spring Coil bind

19.5mm

Exhaust spring Rate lbs/mm

10mm

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