Any info on these being good turbo's for the 2200? Is it too small or too big, just need info of the overall view of it?
are you running a stock motor?
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yeah basically, check registry for mods, but basically header back exhaust, no headwork tho it's in the makes more than likely, but yeah pretty much stock engine. I'm thinkin this T25 or a t3 super 60. I think the super 60 might be better tho i just want opinions on the t25 first.
T3 super 60 would be your best bet. It bolts to most turbo manifolds sold for the motor. The T25 and the T3 have different flanges, and personally I think the T25 is too small for a J-car motor.
I was a retard, and now I'm permanently banned.
I agree with spotabee, i have a super 60 and its freakin great. Cant go wrong with that turbo.
Silver Streak wrote:But I already have the t25 so I could save some cash by using it.
Sell it.
I was a retard, and now I'm permanently banned.
how can it be that bad. I heard that it boosts up to 16 pounds of boost more than I will ever need. And since it is smaller than most then it should be great for what I need. How can it be too small for a J but it came from a bigger engine?
I have been trying to sell and and no luck. So I was going to try and put it to use..
any more input Spotabee
http://registry.gmenthusiast.com/images/importkilla32/Bullit.JPG
Silver Streak wrote:how can it be that bad. I heard that it boosts up to 16 pounds of boost more than I will ever need. And since it is smaller than most then it should be great for what I need. How can it be too small for a J but it came from a bigger engine?
I have been trying to sell and and no luck. So I was going to try and put it to use..
any more input Spotabee
The motor it came from doesn't necessarily mean anything. Only in recent years did companies start putting Turbo Cars out with decent sized turbos (like the STis and EVOs). The size of the motor doesn't motor cause they could easily stick a smaller turbo on just for a small amount of boost. If you plan on boosting a good amount of power, that small turbo will spool too fast and will not match up with what kind of power you are looking for and not match your powerband.
From what I know, the T25 is on the old Sunbirds, the TT 3000GTs & some DSMs. If you're refering tothe 3000GT, they use 2 small turbos to actually make up some power on those motors. If you want to get technical, that turbo is good enough for 3 cylinders to spin.
Also, a downside of having a too small turbo is heat soaking. Don't cheap it out. Buy a turbo that is matched for your motor and will give you suitable power.
www.kronosperformance.com / 732-742-8837
In all reality, it's about working inside the efficiency of the turbo. There are a few people on the site with stock 2.0 sohc motors utilizing the stock t25 turbo and getting great results. When mine was stock with the three-speed gearbox I hit full boost around 3k rpm in 1st gear. It was decently fast at 10psi. I know of other people pushing 17 psi or higher with the same turbo with no complaints.
Super 60s are a little larger that you may want for a stock-bottom 2.2ohv because you aren't going to utilize it to its full potential. Whil you are opperating in the top of the efficiency range with a T25, a T60 is going to put you at the bottom of its efficiency range in full boost.
With a stock motor, there is nothing wrong with running a T25 besides for the limited options for upgrading. You may want to buy a T3 manifold and then an adpater plate if you want to use that turbo and expending later to match the CFMs of newer headwork.
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ok back to the post.
"IF YOU PERSIST IN DOING WHAT YOU HAVE ALWAYS DONE .....
EXPECT RESULTS NO DIFFERENT FROM WHAT YOU HAVE ALREADY ACHIEVED"
how small is a 15g turbo? just wanted to know because thats what comes with the hahn kit i'm looking at
so i take it that it might be a little undersized for a 2200 motor. i only plan to run about 200-220 whp
Quote:
Silver Streak
Yesterday 10:35 AM
Why do you think it is too small?
if you dont know why its too small, heed good advice and sell the damn turbo
you kids really piss me off a lot of us who have done the research and understand how to properly match engines to turbos, understand different types of turbos and features, yet when we offer advice all you do is question us to try and save a buck
think of it this way
You wear a size 6 shoe( for the sake of argument). You're not a cross country runner, but would you go and buy a size 5 cuz its a few bucks cheaper?
get a t3 super 60
making 200hp at 10psi of boost is a lot less strain than making 200hp on 15psi of boost with a t25... also, the t25 is WAY out of its efficency range at that point, in which case higher boost will make more power, but not as much as a bigger turbo would.. all you'd be doing is feeding your engine hot air and prematurly killing your turbo.
sell the t25. Get a T3 super 60. Don't ask. Do it. You'll thank me later. Trust me.
TheFlyingSkwirl(PJ) wrote:sell the t25. Get a T3 super 60. Don't ask. Do it. You'll thank me later. Trust me
HAHA
What he said...
www.kronosperformance.com / 732-742-8837
just so you dont think i'm some douche running his mouth I'll show you i'm a smart one running his mouth...
here's a T25
(10psi on a t3super60 makes 200whp. I'm not sure where that hp mark is on a t25.. smaller turbos need more boost to make the same power as their larger counterparts)
note how 10psi is no where even CLOSE to the peak efficiency island of the T25 60 trim
if you want 200hp ull be closer to the 15psi line which is even FURTHER out of the efficiency range, and (i didn't put the RPM points in but they're the same as the other compressor map) at 15psi on the T25, you're already at the end of the graph at 3500rpm. This turbo is clearly TOO SMALL for the 2200 or ANY jbody engine
here's a T3 super 60
(again pay attention to 10psi)
then read this for a simplified version
as you can see the green area is the peak efficiency range of each turbo (i never finished coloring in the t3 super 60 that whole middle oval is peak efficiency) as you can see at 10psi which is 200hp on the t3super 60, you're going thru peak efficicney and barely falling off the map near peak RPM.
if you still dont get it, then go here and goto the tech section and read
Garrett turbo systems
Perfect turbo match for any engine
if you still are even considering running a T25 after this you need psychiatric help. Don't run insufficient components to save some money or because its easier. Do it right or don't do it at all.
slamcav wrote:so i take it that it might be a little undersized for a 2200 motor. i only plan to run about 200-220 whp
Even though that is your "goal" mark, you still need a turbo that is being used efficiently and not being almost maxed out just to make your goal rating. That will kill the turbo easier and be more of a case of heat soaking.
www.kronosperformance.com / 732-742-8837
Damn great info from the link my mind is still trying to do understand the math. As I said I knew you done your research and the link you sent me was the exact one I was looking for. I know I kinda looked it over before but didn't pay it no nevermind. That should be a sticky. I thought I read it in the performance forum though.
I was under the assumption that the smaller turbo would spool faster and be about perfect for my application but I see now. I have never heard of the heat soakin before. I hang out wih some DSM guys but never heard the term.
Thanks guys
http://registry.gmenthusiast.com/images/importkilla32/Bullit.JPG
Silver Streak wrote:I hang out wih some DSM guys but never heard the term.
That's because DSM guys have had years and years of turbo charged vehicles and they know turbos to get and what not to get so heat soaking is more than likely not an issue. Either that or they just don't know as much about turbos as they think they do.
www.kronosperformance.com / 732-742-8837
They are pretty hardcore. so I assume that they just know what to get. One of them is running the Frankenstein Jr. and utilizing it well. Last time I saw him he told me his first gear was damn near useless. So I think they know a little somethin, somethin
http://registry.gmenthusiast.com/images/importkilla32/Bullit.JPG
Silver Streak wrote:They are pretty hardcore. so I assume that they just know what to get. One of them is running the Frankenstein Jr. and utilizing it well. Last time I saw him he told me his first gear was damn near useless. So I think they know a little somethin, somethin
Yeah some DSM guys know what they are doing.
www.kronosperformance.com / 732-742-8837
NJHK (Sexual Chocolate) wrote:Silver Streak wrote:how can it be that bad. I heard that it boosts up to 16 pounds of boost more than I will ever need. And since it is smaller than most then it should be great for what I need. How can it be too small for a J but it came from a bigger engine?
I have been trying to sell and and no luck. So I was going to try and put it to use..
any more input Spotabee
The motor it came from doesn't necessarily mean anything. Only in recent years did companies start putting Turbo Cars out with decent sized turbos (like the STis and EVOs). The size of the motor doesn't motor cause they could easily stick a smaller turbo on just for a small amount of boost. If you plan on boosting a good amount of power, that small turbo will spool too fast and will not match up with what kind of power you are looking for and not match your powerband.
From what I know, the T25 is on the old Sunbirds, the TT 3000GTs & some DSMs. If you're refering tothe 3000GT, they use 2 small turbos to actually make up some power on those motors. If you want to get technical, that turbo is good enough for 3 cylinders to spin.
Also, a downside of having a too small turbo is heat soaking. Don't cheap it out. Buy a turbo that is matched for your motor and will give you suitable power.
Wrong, the 3/S never saw the T25. They ran 2 Mitsubishi 9b turbos. The T25 was found on all 2g dsms. They ran 10-12 psi from the factory. They are only efficient ~15 psi, then they become a hair dryer. The t25 will fall off after 5.5k rpms down to about 13 psi, due to the tiny a/r and high compressor rpms. (on a 2.0 4g63 ---This may occour at lower rpms on a higher displacement engine)
The EVO only has a big 16g. That is not decent.
I would sell the t25, and run the 14b (found on 1g dsms) They run efficiently ~20 psi and the lag over the T25 is barely noticeable. You can find these for pretty cheap on ebay, however you will need to find a mani that is flanged for mitsu, or an adapter plate or somthing. Another problem with the 14b would be that you cannot rotate the housings like you may on a garrett turbo.
