Build of the Turbo Technics 600 BHP Focus Track Car

Taking a look behind the scenes at how a Time Attack car has been created

Minker 3 was conceived in 2016 as a successor to Minker 2, the Turbo Technics Sierra which had been run very successfully in sprints and hillclimbs over a 21 year life.

With the intention to run it in Time Attack as well as sprint/hillclimb, the specification had to be carefully planned. The engine had to be based on the Ecoboost 2.3, but as transmission was free it was decided to use the EVO X transmission fitted with a Pfizer 5-speed dog gear set and pneumatic paddle shift, with an active centre differential.

A suspension design would be developed to optimise geometry based around cast uprights of TT manufacture, and high braking capacity would be incorporated cater for circuit use. The suspension would be fully adjustable.

The engine would need a minimum of 600 BHP with good torque and drivability.

August 2016. The Focus Mk 3 donor car arrives. This was actually a diesel, but as only the bodyshell and fittings will be needed a low-cost used example was obtained.

Custom Cages designed and built the prototype roll cage. A very comprehensive job, neatly done!

Front and rear turrets were added to allow camber and caster adjustment.

The steering position was finalised with electric power steering in the column. Revised suspension geometry meant that a bespoke Titan rack was required with a separate actuator.

A new subframe was required to mount the rear suspension and differential assembly. Note also the TT cast upright, same front and rear.

A tubular subframe carries the front suspension and steering. Space constraints meant that the design was challenging!

The engine location was finalised and engine mountings manufactured.

The shell is ready for paint, with arches modified and various brackets welded on.

Back from the paint shop. OCS Paint Ltd of Flore carried out the painting, and did an excellent job.

The top deck of the cylinder block was closed to support the liners and increase strength.

Exhaust valve size was increased to 32mm with specially made nimonic valves, and the ports enlarged to suit. Inlet ports were also flowed and polished.

A cast inlet manifold was designed with ram ports and additional port injectors.

A bespoke turbo was designed, based on TT’s EVO 9 unit but with larger wheels, high-flowing wastegate and electric actuator.

Dry sump oil pump mounted