Knocking?
06-18-06, 12:10 AM
#1
Knocking?
Don't know really what engine knocking is, but I've heard the term being thrown around. Dont know if my problem is dealing with that but....I haven't noticed until today (because I always have the ipod going) that the engine is pretty loud, inside and outside. Is this normal? It sounds like a cheap honda engine. Please put my mind at rest and tell me this is normal. 
06-18-06, 01:01 AM
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Awesome... more info...
History
The 1955 Mercedes-Benz 300SL, the first gasoline-powered automobile to use fuel injection, used direct injection. The Bosch fuel injectors were placed into the bores on the cylinder wall used by the spark plugs in other Mercedes-Benz six-cylinder engines (the spark plugs were relocated to the cylinder head). Later, more mainstream applications of fuel injection favoured less expensive indirect injection methods.
It was not until 1996 that gasoline direct injection reappeared on the market. Mitsubishi Motors was the first with a GDI engine in Japan, the Galant/Legnum's 4G93, which it brought to Europe in 1998. Mitsubishi applied this technology widely, producing over 400,000 GDI engines in four families before 1999, but high-sulphur fuel led to emissions problems, and fuel efficiency was less than expected. PSA Peugeot Citroën also launched a GDI engine (with licensed Mitsubishi technology) in 1999, but both were withdrawn from the market in 2001. DaimlerChrysler produced a special engine for 2000, offered only in markets with low sulphur fuel.
Later GDI engines have been tuned and marketed for their high performance. Volkswagen/Audi led the trend with their 2001 GDI engine, under the product name Fuel Stratified Injection (FSI). The technology, adapted from Audi's Le Mans racecars, induces an electric charge in the fuel-air mixture.
BMW followed with a GDI V12. This initial BMW system used low-pressure injectors and could not enter lean-burn mode, but the company introduced its second-generation High Precision Injection system on the R6 straight-6 in 2006. This system surpasses many others with a wider envelope of lean-burn time, increasing overall efficiency.[1] PSA is cooperating with BMW on a new line of engines for future introduction.
General Motors had planned to produce a full range of GDI engines by 2002, but so far only two such engines have been introduced - in 2004, a version of the 2.2 L Ecotec used by the Opel Vectra and in 2005, a 2.0 L Ecotec with VVT technology for the Pontiac Solstice GXP.
In 2004 Isuzu Motors produced the first GDI engine sold in a mainstream American vehicle. Standard on the 2004 Axiom and optional on the 2004 Rodeo. Isuzu claimed the benefit of GDI is that the vaporizing fuel has a cooling effect, allowing a higher compression ratio (10.3 to 1 versus 9.1 to 1) that boosts output by 20 horsepower and that 0-to-60 times drop from 8.9 to just 7.5 seconds, with the quarter-mile being cut from 16.5 seconds to 15.8 ticks. Edmunds Article Popular Science Article
Toyota's 2GR-FSE V6 will use a combination of direct and indirect injection in 2006. It uses two injectors per cylinder, a traditional port injector and a new direct injector.
Mazda uses their own version of direct injection in the new Mazdaspeed 6 / Mazda 6 MPS. It is referred to as Direct Injection Spark Ignition. Isuzu offered a direct injection 6 cylinder engine in the 2004 Axiom and Rodeo, and both were the least expensive direct-injection models offered in the United States from then until present (April 2006).
2GR-FSE
The 2GR-FSE engine used in the 2006 Lexus IS 350 incorporates Toyota's D4-S twin injection system. This system combines gasoline direct injection with traditional port injection. Using direct injection and port injection simultaneously facilitates more precise mixing of air and fuel under low and medium load conditions for greater efficiency, while high load conditions dictate the use of direct injection alone for maximum power. The 2GR-FE engine is rated at 315 hp (232 kW) at 6400 rpm and 377 Nm (277 ft.lbf) at 4800 rpm.
Applications：
* 2006 Toyota Crown Athlete (Japan)
* 2006 Lexus GS 350 (Japan)
* 2006 Lexus GS 450h
* 2006 Lexus IS 350 (Japan and United States)
History
The 1955 Mercedes-Benz 300SL, the first gasoline-powered automobile to use fuel injection, used direct injection. The Bosch fuel injectors were placed into the bores on the cylinder wall used by the spark plugs in other Mercedes-Benz six-cylinder engines (the spark plugs were relocated to the cylinder head). Later, more mainstream applications of fuel injection favoured less expensive indirect injection methods.
It was not until 1996 that gasoline direct injection reappeared on the market. Mitsubishi Motors was the first with a GDI engine in Japan, the Galant/Legnum's 4G93, which it brought to Europe in 1998. Mitsubishi applied this technology widely, producing over 400,000 GDI engines in four families before 1999, but high-sulphur fuel led to emissions problems, and fuel efficiency was less than expected. PSA Peugeot Citroën also launched a GDI engine (with licensed Mitsubishi technology) in 1999, but both were withdrawn from the market in 2001. DaimlerChrysler produced a special engine for 2000, offered only in markets with low sulphur fuel.
Later GDI engines have been tuned and marketed for their high performance. Volkswagen/Audi led the trend with their 2001 GDI engine, under the product name Fuel Stratified Injection (FSI). The technology, adapted from Audi's Le Mans racecars, induces an electric charge in the fuel-air mixture.
BMW followed with a GDI V12. This initial BMW system used low-pressure injectors and could not enter lean-burn mode, but the company introduced its second-generation High Precision Injection system on the R6 straight-6 in 2006. This system surpasses many others with a wider envelope of lean-burn time, increasing overall efficiency.[1] PSA is cooperating with BMW on a new line of engines for future introduction.
General Motors had planned to produce a full range of GDI engines by 2002, but so far only two such engines have been introduced - in 2004, a version of the 2.2 L Ecotec used by the Opel Vectra and in 2005, a 2.0 L Ecotec with VVT technology for the Pontiac Solstice GXP.
In 2004 Isuzu Motors produced the first GDI engine sold in a mainstream American vehicle. Standard on the 2004 Axiom and optional on the 2004 Rodeo. Isuzu claimed the benefit of GDI is that the vaporizing fuel has a cooling effect, allowing a higher compression ratio (10.3 to 1 versus 9.1 to 1) that boosts output by 20 horsepower and that 0-to-60 times drop from 8.9 to just 7.5 seconds, with the quarter-mile being cut from 16.5 seconds to 15.8 ticks. Edmunds Article Popular Science Article
Toyota's 2GR-FSE V6 will use a combination of direct and indirect injection in 2006. It uses two injectors per cylinder, a traditional port injector and a new direct injector.
Mazda uses their own version of direct injection in the new Mazdaspeed 6 / Mazda 6 MPS. It is referred to as Direct Injection Spark Ignition. Isuzu offered a direct injection 6 cylinder engine in the 2004 Axiom and Rodeo, and both were the least expensive direct-injection models offered in the United States from then until present (April 2006).
2GR-FSE
The 2GR-FSE engine used in the 2006 Lexus IS 350 incorporates Toyota's D4-S twin injection system. This system combines gasoline direct injection with traditional port injection. Using direct injection and port injection simultaneously facilitates more precise mixing of air and fuel under low and medium load conditions for greater efficiency, while high load conditions dictate the use of direct injection alone for maximum power. The 2GR-FE engine is rated at 315 hp (232 kW) at 6400 rpm and 377 Nm (277 ft.lbf) at 4800 rpm.
Applications：
* 2006 Toyota Crown Athlete (Japan)
* 2006 Lexus GS 350 (Japan)
* 2006 Lexus GS 450h
* 2006 Lexus IS 350 (Japan and United States)
Last edited by EBMCS03; 06-18-06 at 01:04 AM.
06-18-06, 01:06 AM
#5
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Originally Posted by kloh7
Should I just take it in, just in case? Can someone else confirm that this is just the direct injection?
https://www.clublexus.com/forums/sho...rect+injectors
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