Caveit77777 wrote:I don't understand how a t3 would be safer for my engine. Wouldn't a bigger turbo be worse? And the reason I'm doing this is because I have limited money to spend on my car before I need to start putting money away for my first year of college and I didn't want to start something I couldn't finish. I'd be fine with 220whp since this is an auto x car. I dont need a lot of power yet but that extra ummph would be good. I'll upgrade to the 2871r or a t3 for sure though.
For a given level of power, a T3 will be more efficient. This means less backpressure on the motor since the turbine won't need as much of a pressure differential to compress the air and the air will be cooler so you get more density from a given pressure. These translate to less stress on the motor for the most part. More power does inherently mean there will be some additional stress on the mechanicals, but at the power levels you are mentioning, it is negligible (assuming a motor that is in decent shape).
As for upgrading later, I'd avoid that and just do it right the first time. There is going to be less expense in the long run by not having to buy another turbo, and if modifications to any of the plumbing is needed in the upgrade, that's additional cost as well. Of course, you may do it "right" and end up wanting to upgrade again later anyways, but if you know where you want to be for now, reach for that goal as directly as possible. Regardless of how you do it, I would recommend saving the money and then buying parts once you have enough money to complete the system. If you start piecing it together as money comes along and then an emergency comes up or plans change, you won't be able to change gears so easy as you'll have parts you'll need to get rid of.