I've found a map for just about every other turbo in the world, but I can't seem to find one for a .48 or .42 (I forget which) Garrett T25. Can someone point me in the right direction?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ion_four &raquo;</TD></TR><TR><TD CLASS="quote">I've found a map for just about every other turbo in the world, but I can't seem to find one for a .48 or .42 (I forget which) Garrett T25. Can someone point me in the right direction?
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Anyone have a map for this?

TTT

::EDIT:: What about for a T28? I'm looking into making a hybrid T25/T3 that will spool up quickly and still have good top-end. Doesn't the T28 have the same turbine and housing as a T25?

 

Christ...back from the dead...I'm pretty sure I never found one...and I could sure use it, again!

Does anyone have one?

 

I could use this too. I just snagged a really sweet looking T25 off a saab. no leaking anywhere. very little free play. couldn't beat it for 20 bucks. score 1 for elbow grease.

so yeah. bump.

 

anyone? please? pretty please? I really have searched high and low for one. they just aren't big enough for a mass of people to be interested in it. so if any of you have any leads or even anyone I can ask I'd really appreciate it. I don't want to start cold-calling Saab engineers. I'd have to learn swiss and stuff. that's no good.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IggDawg &raquo;</TD></TR><TR><TD CLASS="quote">anyone? please? pretty please? I really have searched high and low for one. they just aren't big enough for a mass of people to be interested in it. so if any of you have any leads or even anyone I can ask I'd really appreciate it. I don't want to start cold-calling Saab engineers. I'd have to learn swiss and stuff. that's no good.</TD></TR></TABLE>

Saab is from Sweden...they speak swedish

I think it's very possible that a compressor map does not exist in the public realm, since there isn't a direct market...One possibility (that just occured to me) is to maybe do some math-cypherin with this. since it's for the new(ish) Garrett ball-bearing line...possibly the same/similar turbine and compressor? Who knows?

::EDIT::

So, 135kw = ~181hp...this seems a little ******* low to me, for the turbo to top out. Maybe since this isn't a typical compressor map, this is the HP before boost is added, meaning 100% V.E. would produce about 300hp@2.2atm...which is also not right...anyone care to contribute? It seems that the turbo should be somewhere in between these two, unless this has been totally redesigned.

 

&lt;-Post *****

So, here's garrett, as well:

The GT 15's application range is for 1.3 to 1.6 liter (60-80 bhp) diesel engines and 1.0 to 1.4 liter (85-120 bhp) gasoline engines. The compact packaging makes the GT family ideally suited for twin turbo applications on V-block engines. The GT 25, at the high end of the range, can be configured to match gasoline engine ratings up to 210 hp. The GT 17, GT 20, and GT 22 fill in the flow ranges between the GT 15 and GT 25.
The Garrett VNT 15 (GT 17V) turbocharger is currently featured on the VW 1.91 TDI engine in the new Beetle, among others.
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I guess they really just don't flow worth ****...look at these, for comparison:


The GT45 appears to be good for about 480hp...pretty sick, considering the GT70 is good for a little more than 2000hp at a 4.0atm


Anyway, now that I have a boner...can someone verify that these figures are very comparable to the old T25s?

 

I'm pretty sure the mechanics of the GT turbos are very different, as is the compressor A/R. BUT, after a lot of searching I' have read a number of sources refer to the T25 having the same compressor housing (.48 A/R) and wheel as the 45 trim Garret T3. and that's a very easy map to find.

 

back from the dead...this is actually not true. The T28 turbo has the same/similar compressor wheel and housing as one of the T3 turbos. It is basically a hybrid T25/T3.

 

The T28 uses a 60 trim Garrett T3 compressor mated to a Garrett T25 turbine.

Sonny

 

hmmmm that sounds like a most excellent d-series turbo.....

 

yup, and I'm pretty sure the T25 does in fact use the 45 trim compressor wheel. I'll try to hunt down the pages where I got the info.

 

ever find that info?

 

jesus christ. back from the dead.

 

yep, back from the dead, i'm trying to find dsm t25 and 14b turbo compressor maps. Anybody got them?

 

I have a 14b map.. I'll have to get that and post. PM me