Thread: Is this turbo any good for 4bd1

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Steve

Originally Posted by Dougal

Does sound like a T25G.

4 bolts means a journal bearing core, 6 bolts means a ball bearing core.
0.8 compressor and 0.64 turbine A/R's also matches the T25G which is a T25 with a larger compressor wheel.

There is some confusion as to whether these turbos have a 54mm OD compressor wheel or a larger trim 52mm compressor wheel (actually measures 51.3mm OD).
I have had a large trim 51.3mm compressor wheel and housing in my possession before, but not a complete T25G. Any chance you can pull the compressor housing off and measure?

Took the housing off tonight and the compressor wheel measures about 54.4mm (about=old vernier without my glasses!!)
The smaller diameter of the wheel is about 42mm, so that makes the trim about .60 by my calcs.

Steve