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Old 09-05-2006, 10:52 AM   #1
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Default DSM Turbo...and random intercooler question

I have a friend of mine pulling off his factory turbo from a 95 GS-T eclipse. If I'm not mistaken, this is a T25...right? and the flanges would match to the BEGI manifold?

Also, I picked up a tube and fin 24x6x3.5 Intercooler yesterday from a friend, I know they aren't the most efficient design..but I'm planning on running around 8 psi on a T25, should that cool enough or should I try to sell it and pick up a bar and plate design?

Question also being, will that big *** thing fit, its not very tall so it should fit right in front of the radiator right...?

Car is a 90, PS/AC
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Old 09-05-2006, 11:04 AM   #2
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It should fit. Just won't be centered.
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Old 09-05-2006, 11:08 AM   #3
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In my opinion that intercooler might even be overkill for something like that with that little PSI. Heres my reasoning:

The stock GSX/GST runs a t25 at around 12-14 PSI depending on if you removed your boost restrictor. It uses a side mounted intercooler, which is rated efficient enough to cool up to a 16G turbo. Its actually one of the last things updated on the intercooler system. I ran that turbo for awhile on a larger greddy style I/C and the pressure drop was not even worth it (tube/fin ic). I was experiencing lag due to the time it took that small turbo to fill up the I/C. In summary, you really dont need some giant intercooler.. DSM side mounts are almost big enough to look like front mounts on some miatas and cost like 40 bucks.
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Old 09-05-2006, 11:24 AM   #4
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I agree with the "sauce" - that's more than enough IC for 8psi on your turbo. So you've got room to grow. Here's a shot showing the clearance below a 3" thick, 6" tall IC which is mounted flush with the bottom of the a/c condenser. So it looks like you'll have room, but it'll be a tight fit. You can always to some a/c line (gentle) bending to move the dryer/acc out of the way if needed. - rob
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Old 09-05-2006, 11:25 AM   #5
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I was kinda wondering if it would be to big, but I got the intercooler, a massive *** turbo I need to sell, a bov and and some random piping for 50 bucks, so I figured I might as well see if I could use it.

What about the turbo, am I right...or way off?
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Old 09-05-2006, 11:27 AM   #6
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Quote:
Originally Posted by m2cupcar View Post
I agree with the "sauce" - that's more than enough IC for 8psi on your turbo. So you've got room to grow. Here's a shot showing the clearance below a 3" thick, 6" tall IC which is mounted flush with the bottom of the a/c condenser. So it looks like you'll have room, but it'll be a tight fit. You can always to some a/c line (gentle) bending to move the dryer/acc out of the way if needed. - rob
Thanks...wow...thats how thick it is, so its going to be a tight fit....
is the width going to interfere with anything, I didn't really see anything that would get in the way when I looked, but I didn't really get that good of a look.
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Old 09-05-2006, 12:26 PM   #7
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At 6" tall, it should fit under the dryer and that'll let it run side to side. There's a little room to shove the dryer up some, but you'll have to loosen the bracket... or remove it. Don't know about the t25 - I'm a t3 guy.
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Old 09-05-2006, 02:21 PM   #8
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WAIT!!! The MITSUBISHI T25's (EVO/DSM/DODGE/etc...) have a T25 bolt pattern on the turbine inlet flange, but the opening in the flange itselt is round. The Begi T25 manifold I bought has a "Standard" T25 turbine inlet and it's rectangular.

1st pic: Mitsubishi T25 off a '99 Eclipse ROUND
2nd pic: Standard T25 or T28 or T2(all the same) SQUARE (with corners rounded and slightly rectangular)
3rd pic: Standard T3 (very rectangular)

Notice the T25 and and T3 look the same... the T3 is just much bigger.

You can also see that each of the COMPRESSOR OUTLETS are different. The 1st pic(Mitsu) has a small round outlet suitable for a coupler and pipe... the second pic (standard T25 has a triangular bolt pattern you'll need a tri-round adapter to put a coupler on or your pipe can have the tri welded to it... the third pic (T3) is round but exits at a different angle than the Mitsu. LOOK AT ALL OF THESE THINGS PRIOR TO PURCHASING A TURBO. MAKE SURE YOU BUY ONE THAT FITS YOUR APPLICATION. Almost all turbos can be clocked, but they're not all the same. Due to the massive numbers of DSM turbos cheaper than the Nissan's I'm looking at, I almost wish my Begi mani did come with the Mitsu flange. But it's only a matter of time before MY SR20det T25 shows itself. I think I'll look again right now.

PS: you've read this right:
https://www.miataturbo.net/forums/showthread.php?t=4455

Last edited by samnavy; 08-01-2007 at 10:36 PM.
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Old 09-05-2006, 02:25 PM   #9
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Quote:
Originally Posted by miatamania View Post
I have a friend of mine pulling off his factory turbo from a 95 GS-T eclipse. If I'm not mistaken, this is a T25...right?


and the flanges would match to the BEGI manifold?
EDIT: /\ beat me to it..


If it's factory off a second generation eclipse or talon (95-99) then it's a T25.

I don't know. Not all T25 turbos use the same flange, verify before purchase.

Last edited by UofACATS; 09-05-2006 at 02:29 PM. Reason: EDIT:
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Old 09-05-2006, 09:09 PM   #10
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ah...I didn't know that, I'm a newb to turbos, thanks for the pics samnavy.

I know that the BEGI manifold comes HIGHLY recommended, so should I just try and find a T25 from an SR...b/c those are known to fit? Are 'standard' T25's available on vehicles other than the SR20DET motors, other than buying new?


Off topic, but where can I find out what turbo I have sitting in my trunk...

I know its a garrett ( it says it...twice) and its huge...off a diesel...its got a 1.10 A/R on the inlet...but I can't seem to find a serial number...I'm hoping to pawn it off for a couple of bucks toward mine.
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Old 09-05-2006, 10:13 PM   #11
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Quote:
Originally Posted by miatamania View Post
ah...I didn't know that, I'm a newb to turbos, thanks for the pics samnavy.
I know that the BEGI manifold comes HIGHLY recommended, so should I just try and find a T25 from an SR...b/c those are known to fit? Are 'standard' T25's available on vehicles other than the SR20DET motors, other than buying new?
Off topic, but where can I find out what turbo I have sitting in my trunk...
I know its a garrett ( it says it...twice) and its huge...off a diesel...its got a 1.10 A/R on the inlet...but I can't seem to find a serial number...I'm hoping to pawn it off for a couple of bucks toward mine.
That diesel turbo would be perfect for a 800hp 1.6. You'll reach full boost about 1rpm before the every internal engine piece creates their own exit hole through the block. Post a pic of it and maybe someone could help you out... you do know about the microsoft image resizer, right?

The following is based on my research and may not in fact be fact:
The T2 family of turbos, which include T2,T22,T25,T28 and maybe a few others come in two flavors.
One flavor is MHI(Mitsubishi Heavy Industries)... all Mitsu vehicles and their offspring, ie DSM cars, some Dodges, and anything that ever shared a Mitsu platform that came stock with a T2 family of turbo had the round hole turbine inlet flange.
The other flavor is Garrett. The Garrett tubos, used by Nissan and other companies have a square (rounded corners) turbine inlet.

The bolt pattern of the flange is the same, but the hole in the middle is different. I'm sure that Corky at Begi could make you whatever you want. I got one of the few remaining "old-style" manifolds and it came with a "Standard" or "Garrett" square opening flange.

But I'm pretty sure that any Nissan car every made that came with a T25turbo on it utilizes the same flange. It's important to note one thing though... HOW MANY NISSANS DO YOU KNOW WITH TURBOS? I can only think of the 300ZX. A conversation is going on in the classified forum right now about them. I don't know of any other USA spec Nissans that came with turbos? A crap load of Japanese Domestic Market (JDM) cars came with them attached to the SR20deT. T stands for turbo. There are a lot of other JDM Nissan Turbo Motors out there. Just go over to SR20forum.com and have a look around to pick up on the lingo.
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Old 09-06-2006, 12:59 AM   #12
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Wow...ok, that makes a whole lot more sense now...thank you very much!


Of to do some research....
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Old 09-06-2006, 10:15 AM   #13
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remember to take pics and document your build-up back here for others!
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Old 09-06-2006, 10:47 AM   #14
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Will do...prolly should go ahead and start a thread. hehe.
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