Fast Ford




The 2.0-litre Duratec found under the bonnet of the Fiesta ST is a rev-happy little powerhouse. As standard, the 150bhp it produces is enough to get the lightweigh­t Fezza to 60mph in under eight seconds, but the true power potential is strangled somewhat by the red tape of emissions control.

Bolting on a decent induction system and free-flowing exhaust will help the Duratec breathe, and as result release a few more ponies. Couple that with a remap and you can reasonably expect to see between 160 and 170bhp – not massive gains but still an improvemen­t over standard. A set of fast-road cams will add a bit more, but the ultimate spec from bolt-ons alone mirrors Mountune’s MR200 upgrade, with all of the above plus a cast inlet and 60mm throttle body to give around 200bhp.

Further tuning takes two distinctly separate routes: sticking with naturally-aspirated means adding individual throttle bodies (you can even retain the original ECU, but aftermarke­t systems allow for full live mapping), or boosting the Duratec with a supercharg­er or turbocharg­er upgrade. Throttle bodies will yield 210bhp on a stock engine, but high-compressio­n or larger capacity 2.3/2.5 engines can produce as much as 300bhp. Supercharg­ers will produce between 240 and 330bhp depending on the size of the ‘charger, while turbo options can produce close to 500bhp with the right bits in place.

 ?? ??

Newspapers in English

Newspapers from Australia