Everytime I research, I find something new which makes it very difficult for me to choose which turbo I should go with. I went to this website, turbocalculator.com and they had a good tool on building your own kit. The only thing I have trouble is, picking the right turbo. I want to go with the t3/t04e but I dont know which trim to go with, 40,46,50!!! Also which one 0.43 or 0.63 A/R!!!! And a 38mm TIAL external wastgate should be ok right? Im looking to get at least 240 whp at a low boost. I wanna go with a peakboost, but I'd save money building my own. I would really appreciate the help from you guys and if this was mentioned before please don't FLAME me!!! I did at least search but I would like a Little more help with the situation!!! THANKS!!! This is for a stock b16a motor.

 

Anybody?

 

Well, a t3/t4 is good. but t25 you can hit full boost earlier. and i think you would wanna go with the smallest trim, the smaller the trim, the faster the turbo spools.