thinking about upgrading from t63 to t74
lmk
wicked 1
fwiw the 63mm is a great turbo and can and has put 700 to the ground before on buicks.. IT is not your problem unless you are over that.. what is your application/output/goals/dyno info etc.?
it may be as easy as sending it back to precision to get the turbine wheel that they use on the larger 74mm. turbo's installed.
IT is not your problem unless you are over that
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