Yea but it isnt worth it.
It wwould be worth it.. Cost effective.. No.. But worth it yes. Anything that will increase your HP is worth it. For a GT F/I is pretty much the only way to go.. Or even an Auto GTS. N/A Auto GT's and GTS are almost pointless. No turbo is pointless, Just think about the over all picture.. Is it gunna be cost Effective?
Sure, you can turbo a GT or GTS. GT gains more power over stock.
Auto or stick, you're still going to have a lot more power than N/A. If you're going to race with it, probably not worth it. If you were gonna race, you wouldn't have purchased an Auto GT anyway. But for just all around going faster, why not? Except the pricetag is about $5k average for starters.
The price tag will be more around 4k for kit and install and tunning. Depends on the kit you buy though. Also if anything why not do N20. On a auto its pretty and you get that instant boost and you don't ahve to worry about shifting. haha If your gunna get a turbo in a GT Auto you'll beat some car and maybe most depends on money, But you'll ahve no chance against any Turbo'd Manual. There is somone in New.Celica.org that is turbo auto.. Name is like AzNTwin. He is pretty damn quick. Check more there. He has good numbers!
i heard it was good to turbo an auto since it can change gears faster than any manual car
Not true. Almost the oppisite of what you want. You want to have a manual turbo do to longer gears which means longer spooling time for the turbo = More HP's! Auto's if turbo'd dont have long of a Spooling process. If anything you ride in an auto and it will change gears at like 4rpms. while a manual gt can go to 6.9rpms. Thats a lot of spooning. If I were to ever turbo an auto I'd make sure to get the PFC dude to that you change change your rev limiter with that. That would be the only cost effective way to turbo a auto. You won't get as many hp's from an Auto turbo but yet your still gunna be fast.
Shifting - Hell if your a great driver you can shift faster than any auto can shift.
Remember A GT Manaul can beat a GTS auto. GTS have more HP's and with the theory that auto's shift faster shouldn't they be able to rape the GT's even though they are manuals?
It also depends on the driver..
Lemme know if I missed anything