Quote:
Originally Posted by edram454
the question was,, can it damage your car?? well just yesterday I met up with a nice guy in my neighborhood with a 1991 z, he seems like a very handy person with lots of equipment in his garage, welders, press etc.. he had just powder coated and ported his top end and his cam covers.... but on the side of his garage on a crate stood a wrapped up lt5. he just bought that engine used because he over-reved his engine and damaged it. he turned it on and it make some bad noises internally. he thought it was maybe damaged lifters so he replaced some of them. he decided to replace the whole engine so he bought a long block. he was driving around while his tach was not working and over-reved it and lost his motor. I know when I have hit the limiter on my c5 it just drops cylinders and stumbles. maybe the lt5 will do the same but again we are doing many more rpms than a c5 would be doing so the damage is more iminent. I would say not a good idea bumping that limiter too many times. by the way, this friends zr1 had 130k miles on it and still was running as strong as a bull.
ed ramos #3028
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The limiter is there to prevent over-reving the motor, and in and of itself isn't going to cause any catastrophic issues. After completing the "FBI 500+" package, including the Fidanza FW and before installing a shift light (on my 90) I often bumped the limiter. It is nothing more severe than miss firing/sputtering or missing (read: pretty soft, but no drivetrain shock).
Before I had my rev limiter bumped to 7600 and a shift light installed, I'd hit it quite often - Here is an example of how soft the limiter is:
This is Pete's Green Monster. Notice the little misfire on his second burnout at about 1:05.
http://www.youtube.com/watch?v=SFNFOhGGlR4
Nothing to worry about...BTDT many times, w/o issues - NO crashes of gears or anything like that. Very soft.
P.