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Old 07-31-2005, 02:47 AM   #1
junkilo
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Help with my turbo numbers

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
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Old 07-31-2005, 08:05 AM   #2
idiot goes sideways
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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
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Old 07-31-2005, 10:52 PM   #3
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Quote:
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?
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Old 08-01-2005, 12:22 AM   #4
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Quote:
Originally Posted by junkilo
is the actuator the same thing as a internal wastegate?
yes, post some pics.
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