stock tranny and n2o
stock tranny and n2o Hello all im new to this site. im not new to ls1's and lt1's but i am new to the automatic side of the f body. i have had my 99 ls1 for about 4 months now and i have a list of mods that i am doing. i have headers, y pipe, loudmouth exhaust, air lid, throttle body, and sub frame connectors. i am going to be spraying it soon and i want to know what my stock tranny can handle and what is recomended to do to the tranny to make it perform better and last longer. i know the tranny will die someday but im just trying to find out what to plan on. i am thinking a torque converter and a shift kit but im not sure what parts to buy. the car also has 70k miles on it and i will eventually be spraying a 125 shot on it. thanks
been spraying a 175, rated at motor, shot on the wife's car for almost a year with stock trans and converter. car is over 73k now. nitrous isn't used all that often. mainly when i drive the car 
I'm a firm believer in not spraying through the shifts on a stock tranny. It will prolong the life of them. Guys will say that's BS and you'll be fine spraying through. But, I don't see many of them running mid 10s with a stock 4l60. Mine's been handling about a 225 shot just fine.
