Newb question?
I typed "stock LS1 times" without the quotes and sorting by relevancy and got tons of threads: https://ls1tech.com/forums/search.php?searchid=7821166Mid to low 13's. The fastest ever run very high 12's. I think the top dog is like 12.8. M6 and power shifting (shifting without letting off the gas).
If you're running above a 13.5 or so, you either need some practice driving or your car needs a tune up. I ran a 12.98 with just header into cutouts and a lid and $100 street tires (Sumo's). It was my first and only trip to the track ever. Granny shifting.
EDIT: And, in answer to your other question, I would "launch" at about 2,000 or so to start and quickly release the clutch. But, I'm no expert. Tire spin is bad, as is "bogging." You want to barely chirp the tires.
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Your first time out don't be concerned too much with your e.t. Worry more about learning to drive your car. In my '91 Camaro I took .7 sec off my e.t. by learning how to drive it.
Don't forget to leave on the 3rd yellow, not on the green light.
13.6 is about right though. 1.9 isn't too horrible either.

