Help with my turbo numbers

[junkilo]

I've been running my numbers and calculations to turn my sohc turbo and I need some help with some basic questions.

I've got a t25 I think, although my first question is how do you tell the difference between a t25 and a t3 if both are unmarked? Whats the correlation between the two (and other turbos) in terms of a/r and trim? Does the turbo name, eg t4, t3, t66 etc, mean a specific trim, a/r and exducer/inducer size?

The compressor on mine has a 2" ID inlet, 2"OD outlet, .50 A/R, 56 trim wheel (44mm inducer, 60mm exducer).The turbine is a .63 A/R (it has a 063 stamped near the inlet base).

Am I nuts to try and get this to flow 20 lbs/min? Any wastegate suggestions? thanks

[idiot goes sideways]

i dont know to much abot turbos but the difference between t25 and t3 is that the t25 has a actuator and the t3 a wastegate, the also have difference mount plates so you cant get a t3 on a t25 manifold

for more serios question`s talk to someone who has highly knohledge about turbos, also not me

[junkilo]

Originally Posted by idiot goes sideways

i dont know to much abot turbos but the difference between t25 and t3 is that the t25 has a actuator and the t3 a wastegate, the also have difference mount plates so you cant get a t3 on a t25 manifold

is the actuator the same thing as a internal wastegate?

[S14DB]

Originally Posted by junkilo

is the actuator the same thing as a internal wastegate?

yes, post some pics.