The gt28r will max out at about 400bhp, the 3071r will do about another 50+ with ease. As for lag, its mid 3k vs late 3k, a WHOPPING 300rpms or so since the only diff is the turbine wheel. 300rpms wont really be noticeable.

The jump from 400whp to 500whp is HUGE unless you want to push a 3076r there on race gas and ~30psi from time to time. Stuff WILL break and cost more. If we are talking whp, realistically a 2871r will do 320-350whp on pump depending on what mods you have. A 3071r will do 360-400whp on pump depending on mods and max out at about 425-450whp with race gas.

For either of these turbos, a complete rebuild or 2.0L isnt needed. Yes i have a 2.0 which requires boring the block, new crank, rods, and pistons. You are looking at another $1200 or so in parts than what you need.

So which turbo to pick, depends on your goals. The 2871r is a great street turbo with great spool and powerband, the 3071r will make more power, but really would shine if you did plenty more work like discussed in PM.

 

yea well, i think if i went with a bigger turbo id have that fmic and clutch and such, as well as injectors so i could use it to its full potential. i wonder if there are any places that do custom tunes

 

im sure there is, i mean as far as driveability, i don't need the fmic and clutch just yet, i mean don't get me wrong, i need them, but i don't need them to drive my car safely as a daily driver right now. i keep the boost low and maintenace the car regularly. Im waiting on my damn MAF to come in today and ups is taking their sweet a$$ time lol. I don't recommend ups ground shipping to anyone hahaha.

 

^ha have you seen the vids of ups drivers throwing packages? i got a little chuckle. anywho, how many lbs of boost you running? ill guess <10?

 

ya about 7-10

 

hell ya just got my MAF woohooo!!!

 

You arent going to be able to find anyone outside of the chip tuners to do you a custom tune. Plus uni and tapp will have files that will make the most out of everything you add on from head work to cams. If you want a custom tune, then you need to drop $1-1.5k for a stand alone ems.

 

^we customed tuned my bros wrx at a place called amr in westchester county by nyc, thats why i was curious haha.

i still need a fmic and clutch before i do my turbo though, oh yea, did i mention a timing belt and 13 weeks of boot camp ahead of me as well? ha, busy busy busy

 

Compeletly different ecu's. Im sure they have a program that opens up the a/f and timing maps like the mitsu's which we dont

 

You guys are lucky. There's nothing for tuning shops around here. The shops that are around send the ecu's to a diff place.