What turbo will best suit my application..... B16a2 stock sleeves & bore,stock head,forged internals, peakboost ram horn, tial 38mm,aem ems, looking for 350-400 pump, 400+ c16. I was looking at the t3/t4e 57t 63ar, and the gt3076r or 71r, I even noticed the t3/t4e ball bearing. any advice would be helpfull thanks

 

gt3071R

 

for quick response, a stage 1 .63/.70 t3/t04e 57 is a good choice but it will be maxed out at around 325 WHP. Some people HAVE made up to 350 whp but it,s too much for a stage 1 turbine. However, this is a popular choice because it's cheap.
other compressor options that would work with a stage 1 turbine are the T04e 60 trim and t04B V and h trim.

If you want to go stage 3 turbine wheel, depending on your engine work, it may spool rather slow. you could try to compensate with a .48 a/r turbine hsg. All the above mentionned compressor sides could work and you could also use a 60-1 compressor on that stage 3 turbine.
Yes, it's possible to make the stage3 t04e 50 and 60 trim as well as 60-1 BAll bearing and that CHra fits the same old housings.