Been wondering, if the Greddy turbo used the Garrett naming convention, what T2, T3, etc. would it be most closely related to size, spool, and flow wise?

 

Here's the compressor map for the TD04H-15G: http://www.stealth316.com/images/td04-15g-cfm.gif

And the specs (copied from http://www.fordlaser.com/viewtopic.p...6b5212665acf53)

Compressor
Wheel 15G
Inducer Diameter (in.) 1.625 / 41.3 mm
Exducer Diameter (in.) 2.182 / 55.4 mm
Trim 55

Turbine
Wheel TD04H
Exducer Diameter (in.) 1.740 / 44.2 mm
Inducer Diameter (in.) 2.047 / 52 mm
Housing TD04H 6cm2 or AR around 0.5

See also:http://fc3spro.com/TECH/TURBO/tmodels.html

Should be pretty easy to do a comparison with this data. To me, it looks a lot like a GT2259. Which is kinda depressing.

 

compressor is about the same size output as a T360 or 2560. physically it's smaller. but he wheel design helps allow it to flow more.