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Da pojasnine:
LS7 - fabricki motor ( street engine).
LS7.R C6.R- trkacki motori ( competition engine).
LS7 technology transferExamples of the synergy between the Corvette Z06's production LS7 small-block V-8 and the LS7.R racing engine that powers the Corvette C6.R race cars abound.
1.Both are powered by 7-liter engines with dry-sump lubrication systems, CNC-ported cylinder heads, titanium valves and connecting rods, forged steel crankshafts and plate-honed cylinder bores. While the components and specifications of the street and competition engines are tailored to their specific environments, the thought process behind them is identical.
2.In many ways, the LS7 production engine is a racing engine in a street car," said Dave Muscaro, assistant chief engineer of small-block V-8 engines for passenger cars."We've taken much of what we've learned over the years from the 7.0-liter Corvette Racing program and instilled it here. There really has been nothing else like it offered in a GM production vehicle."
3.Everything from the cylinder heads to the unique dry-sump oiling system has a direct line back to the racing program. But while the LS7 has racing roots, it delivers its performance with uncompromising smoothness and tractability - qualities that make the Corvette Z06 a daily-driveable supercar.
4.Both the production LS7 and the C6.R race engines use dry-sump oiling systems designed to keep the engines properly lubricated during high-speed cornering. In the production Corvette Z06, an 8-quart reservoir delivers oil to the engine oil pump under the demanding conditions of cornering loads in excess of 1 g. While common in racing cars, the Corvette Z06 is one of just a handful of production vehicles - and the only production Corvette - to incorporate such a high-performance oiling system.
4.Both the street and competition engines have evenly spaced, symmetrical intake and exhaust ports. Complete CNC porting of the LS7 and C6.R cylinder head is performed on state-of-the-art, five-axis milling machines, which carve out the intake ports, exhaust ports and combustion chambers with mathematical precision. Airflow through the LS7's cylinder head ports was improved 43 percent on the intake side and 26 percent on the exhaust side over the LS2.
http://www.corvetteracing.com/cars/c6r/engine.shtml