The Integrale has been built to meet the requirements of the MSA Blue Book rules and regulations for rallying, sprint and hillclimbs, which means that we believe getting an MSA log book would not be a difficult task.
The specification is impressively well-thought out and includes:
A Guy Croft race-prepared, dry sumped engine that develops 407bhp at the wheels (so about 540bhp at the flywheel) and, more importantly, 400ft/lbs of torque courtesy of some meticulous - and therefore expensive - engineering.
The work includes:
A Guy Croft cylinder head fitted with his own camshafts, cam pulleys, triple valve springs, race valve guides, three-angle valve seats, pistons and rings, crankshaft, and Cunningham connecting rods made to Guy Croft’s own specification.
The engine has also been fitted with:
A high-pressure oil pump, baffled sump complete with windage tray, bespoke front engine mounts with oil takeoffs, a bespoke lightened flywheel machined to accept a 7¼” Alcon twin plate clutch, and a Morroso electrical oil pressure accumulator.
The engine is force-fed via a Garrett GT3076R turbocharger, Lancia Kappa inlet manifold (made to Guy Croft’s own specification, of course…), an anti-lag valve, Turbosmart Raceport, K&N performance air filter and aluminum air box, and a bespoke intercooler and pipework.
Fuel is delivered by an ATL FIA-specification fuel tank (with an ATL baffled sump and safety foam), enclosure and mounting. Two low-pressure lift pumps and two Bosch 044 motorsport high pressure pumps feed an ATL fuel swirl pot via Goodridge fuel pipes and fittings. A bespoke injector rail supplies petrol to Bosch EV14 800cc injectors. The ignition is taken care of by an AEM Cdi Ignition system.
The car breathes courtesy of a bespoke 3-inch exhaust system that features two silencers, a Turbosmart external waste gate, and external waste gate pipe and bespoke exhaust manifold, the latter two items being made of stainless steel. The exhaust is strategically wrapped to prevent heat damage to nearby components and to ensure the very best thermal conductivity and improved gas flow.
The engine is cooled via a bespoke aluminum radiator and Mocal oil cooler, the latter of which includes an HKS remote oil filter housing. Both oil and water cooling systems feature bespoke pipework by Goodridge and ASH respectively. A Forge aluminium header tank and twin cooling fans complete the specification.
The engine management system comprises a DTA S60 ECU, which has been mapped by Advanced Motorsport and Engineering on Dynopak. It also features a bespoke wiring loom and a Turbosmart boost control valve.
Other components include a Bosch 150amp alternator, a Brise aluminum racing starter motor, an FIA-specification battery master system from the same company, a lightweight battery and mounting cage, and a secondary fuse box. An aluminum sump guard protects the underside of the engine.
The gearbox, which has been machined and strengthened, features a Quaife differential, hydraulic slave cylinder, Alcon 4 paddle competition clutch and release bearing, and a quick shift kit and Sparco gearknob.
The braking system comprises a Willwood bias pedal box and AP Racing cylinders, an AP Racing bias valve, a vertical hydraulic handbrake lever, and three AP Racing reservoirs and associated pipe work. The front brakes comprise bespoke disc bells, AP Racing six-pot calipers, Ferrodo DS2500 pads, and AP Racing 355mm x 35mm floating discs. The rear brakes comprise bespoke disc bells and mounting brackets, AP Racing four-pot calipers, Ferrodo DS2000 pads, and AP Racing 305mm x 26mm discs. All brake hoses are supplied by Goodridge, with Brembo supplying the handbrake calipers, brackets and pads (taken from the Lamborghini Gallardo).
The suspension system features GAZ Gold coilovers with helper springs, bespoke, rose-jointed Cr-Moly rear tie rods, a Cr-Moly differential cradle, front and rear aluminum strut braces, a rear underbody brace, and front and rear spherical bearing top mountings. It is polybushed throughout.
Steering comes via a BMW MINI power-steering pump and bespoke power-steering pipework, plus a Sparco steering wheel with an FIA-specification quick release boss.
The vehicle is protected by a TOAD Ai606 Cat 1 alarm immobilizer.