Quote:
Originally Posted by Lee9710
Roughly the same power regardless of what the hp and torque numbers say. L99 will be more mod-friendly and seems to respond much better to a good tune. The L99s that are actually running correctly have been a touch quicker in the 0-60 times but the LS3 takes it by .1 or .2 in the 1/4 with a higher top end speed. The paddle shifters once you get good at it could make up for that .1 or .2 secs in the 1/4. Seems like the LS3 sounds a little better with an aftermarket exhaust put on, but both are great engines as long as the L99 isn't one of the ''problem children''.
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The "problem child" issue on the L99s seem to have a fix now. Pulling the fuses for the ECM...Do a search...so far it seems to make a big difference.
Quote:
Originally Posted by lbs13
What exactly is envoled with a good "tune" with one of these. I'm one of the old caburated guys, been out of it all for a few years. They just hook it to a laptop or what?
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Yes...they use a laptop to make the adjustments but there is WAY more to it than just hooking it up to the lap top. Where you would change out the Jets and Squirts and things like that on a carb you do those sort of things using software. Obviously you can fine tune it much more than a carb and you typically need the car on a dyno to get a baseline run and then some runs after adjustments. This is NOT something you are going to want to try on your new Camaro. Take it to a professional speed shop and make sure they've actually worked on a 2010 Camaro before. Also know that more than likely you will void your drivetrain warranty with a tune because the ECM (on board computer) will let GM know that the factory tune has been overwritten thus voiding the warranty.