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Tech Talk: interview with Geoff Willis

Next year's cars will see new engines reduced by a pair of cylinders to make 2.4l V8 motor units, and the Grand Prix weekends will feature a new qualifying format as well as a return of tyre changes during the race. Craig Scarborough talked to Honda Racing's technical director Geoff Willis about these changes and the team's preparations for 2006

The introduction of V8 engines for 2006 was confirmed before the end of 2004, while teams already had the V10 in development for 2006. Additionally, the confirmation of the rule details came late, when some teams already had V8s running either as cut-down V10s or new, dedicated V8s. The FIA has mandated restrictions on internal engine dimensions and weight, as well as a ban on moving inlet trumpets and multiple fuel injectors.

All these changes will see engines with lower power outputs, from 900+ bhp, but with the change of format the engines are expected to vibrate more - the 90-degree V configuration not matching the 8 cylinders for a naturally balanced engine.

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