I have a T67-25G Greddy turbo, which would be a similar setup from Garrett?? The GT35 or the GT37????

 

bump

 

Well t67 p-trims are = to 37r's. I'm not too sure about your 25g though...

 

Isn't the 25g the compressor on the t67?

If thats right the 25g is said to flow 58lb/min max

 

Thats what the t67 is, a 25g.

 

That should right around the gt30r area as far as flow goes the spool up and surging is probably different than the GT series

Edit:
And fixed..

 

The greddy 25g is nowhere near a 37r by any means. It might be closer to a 35r but more so to a 30r.

 

Can someone Give an honest answer i'm so confused about this turbo, i see it on a site t67-25g.

 

A Greddy "T67" has nothing whatsoever in common with the "T67" as used by Precision, so let any speculation end here.

A Greddy 'T67' is a hybrid of a Mitsubishi turbo, which is made by combining the smaller TD06 turbine with TD07 compressor, which is how they came up with "T67" (same thing as a TD06SH-25G).

The TD07S (25G) compressor is rated at 850cfm, but Greddy mates that compressor to a smaller turbine, almost certainly to make things spool faster. The tradeoff is a PR bottleneck before the compressor is done, which limits power in favor of making it feel better on the street.

As for real world performance, I don't have much info, but the actual results I've seen make it appear to fit somewhere between 50-trim and 3076R - but definitely not in GT35R or GT37R (PT67R) territory.

 

i was going to say 3071 power area.

 

The 25G or other wise known as the T67 is a good street turbo.
I ran it for a good year until I needed more power. It is very comprable to the GT 30 series turbos. Fast spool but goes flat in the higher boost range.

 

well put ted.

 

This turbo is or clams the same output as a 30R

 

The T67 and the TD06SH-25G are not the same. Greddy makes both models for the EVO, but vendors love to call them both T67 (the customer will never know right?). Both turbo's have a 60.5mm inducer which is 1mm smaller then a GT35R inducer. Like Ted stated above, the T67 is hindered by it's smaller turbine wheel which keeps it in the GT3076R power range. On the other hand, the TD06SH-25G has a much bigger turbine wheel and exducer which really wakes up the turbo (way more lag though). This turbo would be similar to a GT35R with more lag.

Another misconception is that the JUN cars used a T67, when they really used a TD06SH-25G.

 

I thought the larger hotside would make it a TD07XX-25G or thereabouts. But then again, I don't profess to be an expert in Mitsubishi turbo nomenclature.