does anyone have any experience with either turbo? i’m hear that this turbo gets compared to the SC34 alot and i was just wondering which one of the three would be better suited for me. i have a stock LS motor. the head will stay stock, but i’m going to build the block for more boost and my compression ratio will stay at 9.2:1. my goal is 400hp. which turbo will get me there with the most useable powerband and not a very large amount of boost? SC34, GT3255, or GT3251?
I run the SC34 on my b16… It’s gonna take alot of bosot on the SC34 to get 400WHP…
how much boost would you project it would take to reach that WHP mark? would this level of boost be very stressful on the turbo? is the max rated hp the very top limit of the turbo? i see these turbos have max rated HP’s of 545 for the SC34 and 520 for both GT32 turbos.
Well my SC34 that I bought froma guy taht had a built b16 with 81Bore had to boost 20PSI jsut to get aaround 350-400WHP. I’m not sure if he ever actualyl hit 400WHP. he’s now running 445whp & 307 torque on 22.7 psi witha T3/T67
I dont have any experience but Im going for 400whp+ on a gt30 or gt35 with a 63a/r… Id go with the gt series because they are know for the quickest spool! They are expensive though for a reason
thanks for the replies tchleung and jdmjerk. i have decided to go with the GT3257E.