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Twin turbo? [Merged 11-6]

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quite possibly the stuipedest thing iv ever seen. One turbos compressed air feeding another turbo? and then the exhuast side from the turbo that is getting the air from the other turbo is feeding the second turbos exhuast side. wtf is that
 
 
Discussed many times before... as John pointed out above. If you did a quick search on the term "twin" while you were doing your research, you might have come up with at least 5-10 previous discussions on this very topic.

Personally, I believe it makes little sense to try and turbocharge a 4 cylinder engine. As many have already stated, twin turbo systems are made for V-type or inline 6+ cylinder engines. 4 cylinder engines don't produce enough exhaust gases to make a twin turbo setup worth while. If you're hoping to do it to make the car faster, I'd advise you not to do it.
 
I lost a cap opn my oz f1 rims, does any one know where i can order some ? also i need a push button switch ( like the hazards or rear defrost ) on the gs, im gonna hook it up so i can turn on.off my underbody lites
 
Quickie question about the OZ wheels that come with the 10th anniversary Eclipses, one of the center caps on my mother's wheel decided to run off, and I'm wondering where I can get a replacement. My local dealer has been less than helpful, and OZ is no hope.

Anyone?
 
SO, yes, I know I have heard it all, single is better, blah blah blah. I know this, I know single turbo would be easier, but I have a few t-25's and 14b' laying around, the motor is coming out of my colt, and, well I want to be the first twin turbo colt on earth I guess. I can also fab the manifolds, exaust......

So, I know someone has twin turbo'd a 4g63 befor, but I can find NO info on it, or anything else on the subject. Does anyone know who, or when, this was done?

I am also hell bent now because people are saying it cant be done. I will turn haters into believers, I hope!
 
So if you "know" everything already and can fab the manifolds, then you should be all set! :thumb:

Seriously, Read the Book Maximum Boost: by Corkey Bell. That will explain why (Through mathematical calculation) WHY twins won't work on a 4 cyl 2.0 engine. especially twin 14b's.

The optimum exhaust gas pulse configuration on a 4 stroke engine is four cylinders per turbine.

But if you just want to hack up a crude twin turbo for the 4g, then do it up!

Nobody is stopping you...

http://www.dsmtuners.com/forums/showthread.php?t=125268&highlight=Twin+turbo+Eclipse
 
Yeah Nick is right on here.

You said that you know single is better, so I don't have to tell you that. If you have the sjills to fab and you really feel the need to give up performance in order to be "different", then you can figure out how to bolt 2 turbos on instead of one, I would hope.

Nobody has said that it can't be done, we just have said that it's a stupid idea because it's going to make less power for the same spool, or spool slower for the same power, than a single.
 
OK, twins will not make any kind of power. That we have all established. So your doing this for the "Oh Sh!T" factor(which wont be the case. For anyone in the know, the reaction will be more like "How ###!") So your doing something that consumes time, energy and money, for show, and at the compromise of power? I think we have a term for that.


How about........ "SUPER RICE"
 
Okay, I was bored and thought of this idea for a twin turbo. Just like any twin turbo system, it still falls short because of the lack of displacement ( so it'd be better with the 2.4L 4G64 or the 2.3L Stroker) Now, the idea is, that you steal some ideas from the V engine design and use two seperate intake manifolds and two seperate exhaust manifolds. Each is connected to the cylinder that is the opposite (So if one piston is at TDC, the other in the pair is at the bottom)

The turbos would still have to be relatively small, but I think it'd be fun to create the intake manifold system.

PS. Sorry for the crappy looking picture, I had to do it fast so I can go work on my car :D.

EDIT: Looks like I made a little (okay, major) mistake. Instead of pairing the pistons that are opposing, I Should have paired the pistons that meet (but are on seperate strokes) So if I remember right, that would be pistons 1-4 and pistons 2-3.

EDIT 2: I redid the image, and I'd just like to mentioned that it also doesnt include an intercooler, but to throw one is just more shapes in PSP ;).
 

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Aikouka said:
Okay, I was bored and thought of this idea for a twin turbo. Just like any twin turbo system, it still falls short because of the lack of displacement ( so it'd be better with the 2.4L 4G64 or the 2.3L Stroker) Now, the idea is, that you steal some ideas from the V engine design and use two seperate intake manifolds and two seperate exhaust manifolds. Each is connected to the cylinder that is the opposite (So if one piston is at TDC, the other in the pair is at the bottom)

The turbos would still have to be relatively small, but I think it'd be fun to create the intake manifold system.

PS. Sorry for the crappy looking picture, I had to do it fast so I can go work on my car :D.
Click to expand...

If you wanted to use "opposite" stroke chambers, you'd want to use 1&4 and 2&3.
 
Boosted98gsx said:
If you wanted to use "opposite" stroke chambers, you'd want to use 1&4 and 2&3.
Click to expand...

Yeah, I just realized that, and edited right as you posted ;).
 
GSX4LIFE said:
OK, twins will not make any kind of power. That we have all established. So your doing this for the "Oh Sh!T" factor(which wont be the case. For anyone in the know, the reaction will be more like "How ###!") So your doing something that consumes time, energy and money, for show, and at the compromise of power? I think we have a term for that.


How about........ "SUPER RICE"
Click to expand...


If a car that want 10.5's was not making any power, then 99% people on this board are also not making ant power.

It is not a question if I will make any power, It will have no choice. I know it wont spool very well, but when thay get going, it will pull hard. Even if it doesnt make massive power, that car will still fly, I went 12.7's with 210WHP last year. It doesnt take much :)

If you think a car that has stock integra wheels, no grafix, no chrome muff, no bling what so ever, and can do 90mph highway burnouts is "super rice", well then I am captin ricer.

I have read maxim boost more than once, and recomend it to anyone lookign at this thread. I am aware of the downfalls, but the avalability to fab all the parts myself, almost just to say I have a damn twin turbo colt, is tempting. It wil not be a long lasting settup, the car will be full T4'd over winter. Actually, it would be just somthing for the shootout if anything.

Long and short of it is, I know it is not a good option, I know it is most likely a waste of time. I was just looking for some info on Doug;s dyno car b/c I was having troble finding any.
 
It honestly cant be that hard to do it....but for some reason all i ever see is people talking about it and not doing it. The only hard thing would be a custom manifold and im sure you can find someone that can make you one, not like its never been done before. The piping might be little hard to but people make custom exhaust and intake pipes all the time sooo that shouldnt be that difficult. You migh say that i should do it since im talking about it and stuff but i think its a waste of money and time....i wouldnt even do it for show cause anyone that knows anything about this stuff would just think your dumb....
 
Aikouka said:
Okay, I was bored and thought of this idea for a twin turbo. Just like any twin turbo system, it still falls short because of the lack of displacement ( so it'd be better with the 2.4L 4G64 or the 2.3L Stroker)
Click to expand...

The reason that twin turbos suck has nothing to do with displacement, it's the law of physics (particularily the way flow capacity and size are related.) A twin turbo setup sucks on 2 liters and sucks on 8, compared to a single turbo.

Now, the idea is, that you steal some ideas from the V engine design and use two seperate intake manifolds and two seperate exhaust manifolds. Each is connected to the cylinder that is the opposite (So if one piston is at TDC, the other in the pair is at the bottom)
Click to expand...

Why bother with seperate intake manifolds, except to make your life that much more difficult? There is no performance merit to doing that.
 
You could try talking to the people that made the damned car, I think they might know something about it.
 
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