The XR4Register Profile - Simon 'Gengis' Stephens
Ford Sierra XR4x4 2.9 Twin Turbo
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Photo Gallery for Simon's XR4x4
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Engine Specification
Engine built by Boost performance
Girdled sump which bolts up through the sump into the main caps strengthening the bottom end allowing the engine to rev to 7500rpm. Lightened and balanced bottom end. Tuftrided 24v crank and pulley. Steel 'H' beam rods. Ceramic coated forged low compression pistons, lowering compression to 7.1. ARP stud set with custom made cylinder head strengthening bars. . Custom made headgasket with Wils rings. High volume oil pump. Gas flowed and ported big valve heads with sodium filled exhaust valves. Boost Performance high lift camshaft, Garrett GT-28 roller bearing turbos. Exhausts by Design stainless steel exhaust. Pro Alloy intercooler, radiator, and oil cooler, Electric water pump, Torque of the Devil supplied and fitted Omex ECU, Siemens Deka injectors, 24v coil pack. Uprated breather system. Adjustable boost controller. Nitrous Oxide Kit.
Engine produces: 482.1 bhp and 463 lb/ft torque without Nos and 516.9 bhp and 539lb/ft torque with Nos.
Transmission
Gearbox is Reyland big tooth straight cut box with syncro with a slightly higher top gear. Clutch is a Helix twin plate with aluminium flywheel. Quick shift and full throttle gear change kits are also fitted. Front and rear diffs are Quaife ATB units.
Brakes
Front brakes are Hi-spec Monster 4 pot aluminium calipers with 285mm grooved discs with EBC green stuff pads. Rears are again EBC grooved discs with green stuff pads. Braided hoses are fitted and the system is filled with silicon brake fluid.
Suspension and Steering
AVO shock absorbers with 25mm lowering springs are fitted along with poly bushes all round. Adjustable track control arms are fitted at the front. An electric power steering pump has replaced the mechanical one.
Wheels & Tyres
The wheels are off a Series 1 RS turbo and are fitted with Toyo R888 205/50 15 tyres.
Power Plot
Latest plot (click image for full size)
 
Magazine Feature
Sierra Showdown Grudge Match Feature in Performance Ford Feb 06 Edition
Practical Performance magazine Jan 2007
Awards Won
2009 Stoneleigh Country Festival - 1st place for 'Best modified car'
2008 XROC National Day - 1st place for 'Best modified XR4x4'
2007 XROC National Day - 1st place for 'Best modified XR4x4'
2005 Town & Country - 3rd place for 'Modified Concourse Class'
2005 Ford Fair - 1st place for 'Sierra Modified Concourse Class'
2004 Interford - 1st place for 'Modified category'
2003 Interford - 1st place for 'Modified category'
2003 Town & Country - 1st place for 'Best car in sporting class'
2000 XROC National Day - 2nd place for 'Modified XR4x4'
1999 Combe Abbey - 2nd place for 'Best Visiting Car'
1999 Drayton Manor - 3rd place for 'Best Visiting Car'
Performance achieved at Shows
0-60 in 4.19 secs as perofrmed at Ford Fair 2009
1/4mile time of 12.295 secs performed at Classic Ford Show, Santa Pod 2005 Mpeg of 1/4 mile run
0-60 in 3.98 secs as performed at TRAX 2004, Mpeg of 0-60 run
0-60 in 4.19 secs as performed at Ford Fair 2004
0-60 in 4.77 secs as performed at TRAX 2003
1/4mile time of 13.73 secs performed at RS Central Day, Santa Pod 2003
0-60 in 5.5 sec as performed at TRAX 2002
Top speed 137mph as proved in Performance Ford Feature in Feb 2006 magazine
Last updated 07.04.10
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Car Profile
Owner: Simon Stephens
Model: XR4x4
Engine: 2.9 Twin Turbo
Gearbox: Reyland Straight cut MT75
Suspension: AVO and system 2 springs and poly bushes
Exhaust: Stainless by Exhausts by Design
I.C.E: Standard
Interior: Standard
Exterior: Standard with 15" wheels
Performance: 482.1bhp with 463lb/ft without NOS / 516.9bhp with 539lb/ft with NOS
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