Harry Tuttle
Active member
- Joined
- Jun 2, 2006
- Location
- in your ducts
now I have the 15G and 16T, anyone have any input on which I should choose and why?
Duder said:15G and 16T are both TD04HL, so the turbine wheels should be the same, and turbine housings should swap between them. 15G compressor efficiency starts to fall off pretty quickly if you go higher than 2.0 pressure ratio, so maybe 12-13 psi as measured at the intake manifold. Looks like the 16T maintains its peak efficiency up to around PR 2.6, or over 20 psi. They both have about the same flow range. So if you're looking to run anything more than 12 or 13 psi gage pressure then the 16T should perform better.
Great to see a well-informed, thorough answer, delivered simply and without attitude.