Engine
As well as the chassis, the engines used are also standardized and regulated. Unlike chassis, engines must come from a major production car manufacturer, using the block from an engine used on a production car. However, these engines can have their displacements modified in order to equalize the field. For 2007, all engines will also be required to use standardized ECUs in order to better regulate engine performance.
The following engines are currently approved by GARRA:
- BMW 5.0 L V8
- Ford 5.0 L V8
- Infiniti 4.35 L V8
- Lexus 5.0 L V8 (can also be branded as Toyota)
- Porsche 3.99 L Flat-6
- Porsche 5.0 L V8 (approved in late 2007)
- Pontiac 5.0 L V8 (can also be branded as Chevrolet or Cadillac)
- Honda 3.9 L V6
Each engine also has specific restrictions on what can be modified beyond stock parts, as well as restrictions on intake and exhaust dimensions, RPM, and various technical details.
During the 2007 season, a second Porsche engine was approved by Grand Am. The 5.0L V8 unit is not actually constructed by Porsche, but is based on the V8 engine used in the Porsche Cayenne, built by Lozano Bros. Porting.
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A Dinan-prepared BMW V8.
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A Pontiac V8.
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A Roush/Yates-prepared Ford V8.
Read more about this topic: Daytona Prototype
Famous quotes containing the word engine:
“There is a small steam engine in his brain which not only sets the cerebral mass in motion, but keeps the owner in hot water.”
—Unknown. New York Weekly Mirror (July 5, 1845)
“Industrial man—a sentient reciprocating engine having a fluctuating output, coupled to an iron wheel revolving with uniform velocity. And then we wonder why this should be the golden age of revolution and mental derangement.”
—Aldous Huxley (1894–1963)