Reinforced valve spring kit Ford 1.6 EcoBoost

Ford engine covered

This kit suits the Ford 1.6 EcoBoost, a turbocharged in-line four-cylinder of 1.6 litres with direct injection, 16 valves and two overhead camshafts. It sits under the bonnet of the Focus III, C-MAX, Kuga II, Mondeo IV, S-MAX, Galaxy II and Tourneo Connect.

On all 16 valves the kit replaces the original spring and its upper retainer; the original lower spring seat and collets stay in place. SUPERTECH supplies a single conical beehive spring with a titanium upper retainer.

SUPERTECH reinforced valve spring kit

Each time the cam lets go, the spring must drive the valve home against the seat. Should load give out near the rev ceiling, the valve trails the cam, closes tardily and might well strike the piston, called valve float.

Installed at 33.6 mm, this single conical spring exerts 289 N (65 lbs) on the seat, with a titanium upper retainer.

Valve spring kit technical specification

Valve spring kit fitting details

The SUPERTECH kit SPRK-FE56BE contains SPR-FE56BE single springs and RET-MC56/T1 titanium upper retainers. The original lower spring seat and collets stay in place; an SS-B202 shim is offered as an option.

With the valve shut, the gap separating the lower seat from the upper retainer gives the installed height. SUPERTECH specifies the load at one dimension only: if that dimension grows, after machining the seats for example, force is shed at the spring rate per extra millimetre. Both values sit in the SUPERTECH row of the table below.

Technical guide

Our brands

SUPERTECH is a Californian specialist, active for over three decades, in valvetrain parts for racing. Each batch of springs is inspected before sale by laser, ultrasound and X-ray, so no internal flaw ever leaves the brand's workshop for a customer's engine.

How to choose

With a firmer spring, this turbo engine can turn faster, accept a camshaft of livelier profile or a higher boost setting, without its valves leaving the cam. Seat load of the kit: 289 N, at the installed height quoted earlier on this page. SUPERTECH communicates neither a maximum lift nor an open load for this kit; request our advice before coupling it to a camshaft with generous lift. A spring harder than necessary speeds up wear of cams and valves, so it is wiser to pick the load that matches your real use.

When reinforced springs become necessary

• Camshaft whose lift exceeds the original
• Boost pressure raised through a remap
• Rev ceiling pushed higher on this engine
• Frequent circuit or competition use
• Original springs tired by mileage

Compatible vehicles

Related products

Head removed? Have the valves checked or replaced too. The buttons below lead to our inlet-valve and exhaust-valve pages for the 1.6 EcoBoost: