The World's fastest street legal Cosworth - became the first Cosworth to exceed 200mph reaching 201.8mph on the 16th September 2004 at Bruntingthorpe Testing Ground, it was my 59th birthday, what a present.  The record was raised with my tuner Mark Shead driving to 206.1 mph at Woodbridge airstrip on the 20th August 2005.

An attempt on this record was made on 13th October 2005 also at Woodbridge airstrip during a shoot for 5th Gear TV programme.  Despite very wet conditions and wheel spin up to 185 mph a speed of 206.0mph was achieved.

Our hoped for dry run at the Performance Ford Daddy Thrash saw it pouring with rain, but again the car was able to run 201.2mph in 2/3 of the straight, surely we must get a dry run soon.

For 5th gear & several 200mph runs see the video section                                                              

 

 I purchased the car in July 1996 with the intention of building my 'Ultimate Road Car'. 

The Latest Conversion was carried out by Mark Shead of M.A.Developments. 

On the 5th December 2008 it recorded 838bhp/666ft-lb on the Norris Designs Dyno using race fuel . Backed up with a 200bhp shot of Progressive Controlled Direct Port Nitrous. Power is potentially over 1000bhp & 850ft/lb, it gives the car incredible mid-range acceleration.

The 0-60 time is limited by lack of traction, but once past 100mph you would need a Veyron  to live with its acceleration. 0-60 4.1sec, 0-100 in 6.9sec, 0-150 in 12.6sec, 0-180 17.8sec & 0-200 24.5sec have been officially recorded.

The brakes, suspension, gearbox and almost every other part have required upgrading to cope. This car has taken over twelve years to complete, I hope you get an insight into the pleasure this project has given me.

 

 

 

 
Rod Tarry's crazy Sapphire Cosworth has been   recorded at an almost unbelievable 206mph and packs an estimated 900+bhp, making it the fastest and most powerful road-legal Sierra in the world

Redline - November 2006

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