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For every bar of boost about 15 psi or so you double the effective engine displacement. The old 1.6 4 cylinder while a fine engine especially in the fiesta st, had some issues. It’s k39 turbo was just too small to really do much with tuning. In the fiesta st you would go from 185whp to 230whp on...

No it’s does not that’s is old 1.0

The dragon engine has no timing belt

For those that don’t know the 411 with this engine in the bronco sport. First and foremost the previous gEN 1.6/1.5 4 cylinder used in everything from the fusion to the fiesta st is a great engine but it’s a good example of what happens when you downsize too aggressively. The fiesta st is a...