I have just purchased a DSM 2g t25 turbo. I am planning to put together a kit of my own......Originally wanted to go really big but I am a poor student.

The turbo is is good condition.....ZERO shaft play

I have a few questions....

1. I was looking at the wastegate actuator arm and It looks like it will hit the bracket that its mounted to. I looks like once boost reached X amounts of boost it wont let the actuator move......thus over boosting....can someone explain this to me...


2. My other question is, can this turbo be ran without water going throught it. It is water/oil cooled. Is it okay to seal the water inlet/outlet and just use oil?

3. I have been searching, can someone show me a website or if someone can sell me a manifold, nothing expensive, just something thats affordable and that will work with my turbo. This is the flange. I thought the Greddy manifold woult work but the flange is facing the wrong direction......little help on this topic. (d16y8)


All suggestions are welcome and appreciated, H-T rules

Jon




Modified by shadow103rd at 9:40 PM 3/15/2004

 

try rotateing just the actuator arm so it is not pressed against the turbo, looks to out of wack to me.

yes you can block of the water line.

http://www.spoolinperformance.com
talk to him, i have see some of his mani and they look good, plus i believe they are well priced.

 

1) This is common. You need to index the compressor housing a little bit for clearance.

2) I wouldn't recommend it. As sensitive as Garrett bearings are, it might cause problems. Also, it is so easy to run coolant lines.... Easier than oil lines for sure.

3) The DSM T-25 uses flanges that are different from the Garrett/Air Research T-25 Flanges. This will require a custom manifold, or at least the DSM flanges must be welded onto your manifold.

Flanges can be bought here:

http://www.roadraceengineering...s.htm

These guys also have the flange for the O2 housing, so you can make a custom downpipe like I did, or run an external wastegate if you want to.

 

when you say index it, do you mean loosen the compressor housing and rotate it a little bit???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">2) I wouldn't recommend it. As sensitive as Garrett bearings are, it might cause problems. Also, it is so easy to run coolant lines.... Easier than oil lines for sure.
</TD></TR></TABLE>

the water cools the housing around the bearings, it does not go through them. There is no need to run the water. he might as well, but he does not have to and he will be fine.

 

I know that, but without coolant the bearings are at the mercy of oil that gets dangerously hot. The T-25 does not cycle very much oil, not enough to rely on it for cooling anyway. On the other hand the coolant cycles quite rapidly and will keep the cartridge from getting above a couple hundred degrees.

Plus it just makes the thing last longer. The first time he doesn't let the car cool before shutting down he's going to carbonize his oil and ruin the turbo.

Just take water from the lines that go through the throttle body. Kill two birds with one stone.

 

check out http://www.homemadeturbo.com
lots of people there use the DSM turbos, i was origanaly gonna go that route but i want A/C and simplcity so i just bought a kit.

i have my origanal manifold i made for the TD05 same flange as a t25, I used the HF manifold with a plate, i'll sell it to you if your interested for like 40 plus shipping.. PM if your interested

 

anybody else got info......bump

 

why wont the DSM T25 work w/ the greddy manifold? whats different about the flange?

 

because it is not the same flange.

but you could make an adaptor plate.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by envision2teg &raquo;</TD></TR><TR><TD CLASS="quote">try rotateing just the actuator arm so it is not pressed against the turbo, looks to out of wack to me.

yes you can block of the water line.

http://www.spoolinperformance.com
talk to him, i have see some of his mani and they look good, plus i believe they are well priced.

</TD></TR></TABLE>

Phil at Spoonlinperformance is the man huge

 

I have an HF manifold w/ adaptor plate for T25 email me w/ an offer if you want bambooseven@hotmail.com

 

I second the recommendation to run water lines. The turbo was designed to run that way for the reason. I don't believe it is simply to allow one to shut off the car without cooling off the turbo first. Running the water lines takes about 15 minutes...

As for cycling oil, beepy is right. The oil feed line for a T25 has to be kept pretty small or it will start smoking like crazy. I don't know how the DSM's are doing it, since their oil feed lines are fairly large. My guess is that the source for their oil feed line is at significantly lower pressure than where we tend to tap into on Hondas.

 

Thanks for all the info guys..........bump one last time