differences between 97-98 and 99-04 engines
Thread Starter
Pro
Joined: Aug 2005
Posts: 703
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From: Sarasota / Cape Coral Florida
differences between 97-98 and 99-04 engines
What are the differences between the engines from the years 97-98 and those from 99-04. mainly I was wondering why the earlier years had two cables entering the engine through the left fuel rail cover when the newer models only have one? BTW what is this cable? I realize how lame i must sound asking this question 
, but i HAVE to know (nothing comes in the way of my curiosity...) Why did they make the change and how is this change an improvement?
Thanks
SRQC5
P.S....while were on the topic what other differences occured prior to the year 2000 in the c5 engine?
, but i HAVE to know (nothing comes in the way of my curiosity...) Why did they make the change and how is this change an improvement?Thanks
SRQC5
P.S....while were on the topic what other differences occured prior to the year 2000 in the c5 engine?
Le Mans Master
Joined: Apr 2000
Posts: 7,218
Likes: 1
From: Cresskill NJ
My understanding is that on the 97-98 cars the fuel pressure regulator is mounted on top of the engine, requiring a return line to the tank. On the newer cars it is mounted at the fuel filter I believe, meaning no return line at the engine. As for being an improvement, most prefer the 97-98 style better. We have bigger injectors too 
Race Director
Joined: Aug 2003
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From: "It's 106 miles to Chicago, we've got a full tank of gas, half a pack of cigarettes, it's dark, and
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The biggest engine changes came in '01 - check out this article.....
http://www.corvetteactioncenter.com/.../2001over.html
Over the years, Chevrolet made a number of running changes to the car, some were as simple as colors, others were making some of the optional equipment standard.
And yes to the first question - the '97 and the '98 had what appeared to be two fuel lines, one was a return.
http://www.corvetteactioncenter.com/.../2001over.html
Over the years, Chevrolet made a number of running changes to the car, some were as simple as colors, others were making some of the optional equipment standard.
And yes to the first question - the '97 and the '98 had what appeared to be two fuel lines, one was a return.
