Need professional's opinions.
I noticed alot of you guys are very smart on these things and I will respect your opinions. So plz help ME decide on what would be best for me.
I have a 1999 Trans Am, Ram Air hood, K&N filter and stock exhaust if that helps any <3
Thw ATI is easier to install and has the potential to make more power (though the Vortech will meet your 500hp goal) but damn I read a lot of post about belt slippage issues. Maybe you won't have problems if you get the 8 rib kit or keep the boost down. I'm sure some ATI guys will chime in.
With either kit the big thing to watch is detonation. You'll need data logging software and will have to always keep a close eye on KR otherwise you will smoke the motor.
Can't tell you too much about the turbos but it does seem to be a more sophisticated setup which may have more mechanical and tuning issues to deal with than the supercharger kits.
Good luck and welcome to LS1Tech.com, Tom.
The ATI is an easy install, if you are looking to stay around the 475rwhp level (with headers) its a decent kit but I dont recommend buying their complete kit with their tuning. I would buy an in-tank or their inline pump (I'm using an ATI inline), 42lb injectors and take the car somewhere to get it tuned that knows these cars (usually ~500.00).
Cant tell you much about the turbos out there right now.
450-475rwhp in an f-body will easily handle most 03 cobras and C5s. Naturally if you g to run into a C5 with nitrous or a cobra with 600rwhp its going to be rough but thats how it goes

