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You are here: Home | News, Events & Advice | 1.6 EcoBoost Bulletproof Engine Block

1.6 EcoBoost Bulletproof Engine Block

Why have Pumspeed gone for Engine Liners ?

The Ecoboost 1.6 Block has a very thin  'cast in' liner, in other words there are 4 tubes of iron suspended in the middle of your alloy engine block that have pistons running up and down inside them. They are stronger than the surrounding alloy and allow the pistons to run with very little bore wear. We have documented why the block shims were required many years ago ( CLICK TO SEE ) but now with these cars getting older and more worn and power outputs going above 400bhp the life of the stock Ford liner rather than the deck area is now comming into question.

Over the final weeks of August 2018 Pumaspeed inspected some 7-8 engines with varying mileage and failures. The findings were quite disturbing, 75% of the blocks were techinacally scrap, appox 50% had cracks down one, two or even three stock Ford liners and all bar one had the terminal deck ovalling problem.  From all the blocks we had only 1 was deemed suitable to be rebuilt as a stock bore motor.

Something had to be done to enable the 1.6 EcoBoost engine to survive the under engineering that Ford put into it.
The tried and tested solution of putting a deck plate into the top of the deck and a shim between each cylinder wouldl never  solve the issue we were seeing.
The only solution would be the tried and tested liner system very similer to the Darton Liners system we have used on the Volvo and Honda motors we know.

Liner devolpment and installation has to be completed by very accurate machinery so pumaspeed have employed a state of the art CNC system to accurately machine the old thin liner away and install the new unit.
Cast iron liners for the 1.6 ecoboost engine
After pressing the liner down to a stop lip, the block is then honed to size to suit which ever piston you require from the omega which is 2 thou under sized to some huge 1.5mm over sized we are looking at for added cc. The deck is then skimmed to ensure a fully flat surface to work from. We take the bare minimum off the blocks and heads to ensure compression is maintained at the desired rate.

The new liner is way thicker than stock and more importantly the cast iron liner now sits flush with the deck top and head gasket so is way stronger than the old thin liner and alloy deck. we feel that this system is a massive step forward in developing the power potential from the 1.6 ecoboost and for all the Pumaspeed Blue Top motors we are including this system as standard equipment.

All Competition spec motors unless totally new block from ford will be built using this system from now on, it is the only way to guarantee total reliability.
Our Grey car has been the test bed for one of these units and with the New X57R turbo plus a set of injectors and our uprated fuel cam kit has hit 412 bhp reliably on and off track.


new pumaspeed st180 linered block