Forced Induction Superchargers | Turbochargers | Intercoolers

Boost Enginneering needed.

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Old Oct 13, 2004 | 10:31 PM
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Default Boost Enginneering needed.

Just a topic for discussion. As I build my twin rear mount turbo, I intend on running true duals to the turbos, then seperate tubing from each turbo back to the dual inlet intercooler.
Just out of curiousity, and for sdiscussion purposes what would happen if:
I ran a Y pip in the exhaust, then spilt the exaust back to duals to feed the turbos?
Or, what if I "y" the intercooler pipes to a single larger pipe, then "y" it back before the intercooler (one for each inlet).
LAstly, what if both were done?

I think my question is somewhat obvious...will boost even itself out in the intercooler piping if the a brought from 2 to 1 and then back to 2? Is one likely to flow more is the path is easier and if so, whats the effect...same for the exhaust.
I have placed calls and spoken to folks at STS and do plan on them being a part of this kit. Still waiting for some return calls though!
Think...and guess what the dynamics of the above questions pose to a system like this.

Last edited by Jammer; Oct 13, 2004 at 11:08 PM.
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Old Oct 14, 2004 | 12:23 AM
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come on now, throw in your thoughts!
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Old Oct 14, 2004 | 03:25 AM
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i'm no expert, but i think running the 2 y's is easier and better, cause boost will kinda even out assuming both inlets to the intercooler are close when it comes to flow.
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Old Oct 14, 2004 | 05:33 AM
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It would seem that you couls not Y the exhaust at all because each turbo won't get the same amount of exhaust pressure.Looks like you will have to go old school and have each header feed each turbo.Now the problem is that you might not have enough exhaust flow to spool a turbo in the back of the car.
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Old Oct 14, 2004 | 07:45 AM
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I agrree with slowhawk, however was curious if there was data to show each turbo would get the same flow, even though one with have a path of least resistance....or even futher, what are the TRUE IMPLICATIONS of having one turbo spin more??? Reallly, anyimplications to that?
This can be a good discussion.
We shall see how well I spool, I understand the concern.
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Old Oct 14, 2004 | 08:04 AM
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I don't know if one turbo would spin more then the other, I think pressure would equalize between the two when you start trying to spool them. Exaust would flow the path of least restriction....
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Old Oct 14, 2004 | 08:49 AM
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Originally Posted by Tiago
I don't know if one turbo would spin more then the other, I think pressure would equalize between the two when you start trying to spool them. Exaust would flow the path of least restriction....
That seems logical to me. I would venture a guess that you should at least make an effort to get the same length pipe on each side after it splits (and before they merge).
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Old Oct 14, 2004 | 09:19 AM
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if you can run the exhaust to a y before the turbo's whats the point of useing 2 turbo's aside from fit.. wouldnt you have psi problems doing that... I dont think you would have an ic problem w/ dual in and one out as long as you have proper bov.... but dont take my word for it I do not own a turbo ls1................................... yet.....
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Old Oct 14, 2004 | 10:21 AM
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Forced air is going to take the path of least resistance. I'm not sure why you want to 2 to 1 to 2 pipes...less piping? Again, the air will go where it's directed by the piping, it doesn't matter if it's 6 to 3 to 1 and back to 2. Just my thoughts...
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Old Oct 14, 2004 | 05:26 PM
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Its not that I want to "Y" anthhing, but in searching for pipe routes I began to "wonder" what effects would take place. Thought it to be a good discussion. Its gonna take some work for 2 3" ex pipes and 2 2" IC pipes to run the lenfgth of the car eith the fat BMR crossmemeber and framce connectors I have.
Assasian, the point in using two turbos is, well, two fold.
1st, its unique, I like unique
2nd. It, in my opinion, will be more powerful and street freindly than a big single...this is not a drag car, but having had twins, I definately prefer them to thie singles I've seeen. Hell anyone can order a big single kit...not my style.
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