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Discussion Starter #1
I want to run true duels all the way to the tip as my exhaust system so won't I need to run two smaller twin turbos rather than a single large turbo? just some of the thoughts floating around my head for the future :cool:
 

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Discussion Starter #2
yeh im pretty sure that's a dumb question and i think i already know the answer just to be sure I'll ask though haha
 

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If you would like all 8 cyls exhaust to power the exhaust turbine on a single turbo, than no, you won't be able to have a true dual engine back setup because in a typical setup you would have to couple the exhaust coming from the block first so that it can enter the exhaust side of the turbo, and then exit the turbine into the exhaust and be split from their.

On a dual turbo setup, you can run each turbo separately and then couple the compressed air either before the FMIC, or get an FMIC that has two entrances and one exit that than delivers the ambient temp compressed air into the TB, unless you have a car that is running twin or multiple throttle bodies, which your 95 tbird does not. With this setup, you can run a true dual engine back exhaust system, although it sort of loses the meaning once you are running boost.
 

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Discussion Starter #4
yeh I kinda of knew that just needed reassurance lol, btw I planning on using a Mark VIII engine which has a twin TB so I need not worry about that, Yeh if i ever run torbos which I plan too some where down the road I definitely need a twin turbo set up not only b/c I want to run dual exhaust but I need my power in the lower rpm band b/c the Mark DOHC engine makes most of it's power up top and doesn't really have lower end power and so smaller twins is my path, but first, i have an engine to rebuild, just needed to get the basics down which I have now, thanks
 

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also, what is your goal? Do you just want to have a true dual engine back exhaust just so you can say you have one, or for more power? Same question for either a single turbo or a twin turbo setup, what are your goals? Most people run a twin turbo not because it produces more power, but a) to say they have one, or b) to deliver power more efficiently and reduce turbo lag by having one turbo set up to run boost quicker and the other to turbo offset to deliver power higher up in the powerband. With the twin turbo setup, MOST of the times, you will not have a dyno queen, but you will probably have a very nice powerband. With a single monster turbo setup, especially on a v8, you will have more lag, especially since the exhaust has to travel further before any boost is created, but the end result is a more efficient larger turbo that will create a crazy amount of top end whp b/c you have 8 cyls powering a turbine instead of 4.
 

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yeh I kinda of knew that just needed reassurance lol, btw I planning on using a Mark VIII engine which has a twin TB so I need not worry about that, Yeh if i ever run torbos which I plan too some where down the road I definitely need a twin turbo set up not only b/c I want to run dual exhaust but I need my power in the lower rpm band b/c the Mark DOHC engine makes most of it's power up top and doesn't really have lower end power and so smaller twins is my path, but first, i have an engine to rebuild, just needed to get the basics down which I have now, thanks
twin throttle bodies huh? Definitely makes running a twin turbo setup sound more interesting.
 

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NO production Mark VIII ever had twin throttle bodies. Period.
 

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Discussion Starter #9
well I'm sorry thats what I was told, I haven't bothered looking at my engine yet b/c I'm still organizing my tools, lol i'll go look when i get off, and ijust realized i put true"deals" in my heading which is supposed to be true duals, lol my bad, lotta stuff i gotta do today.
 

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I want to run true duels all the way to the tip as my exhaust system so won't I need to run two smaller twin turbos rather than a single large turbo? just some of the thoughts floating around my head for the future :cool:
Most exhaust systems use an X pipe or and H pipe tying the two sides together, which ends up doing pretty much the same thing as running a big single pipe and splitting off to duals just prior to the rear axle. Mine has a single turbo with a 3" downpipe, then it increases to 3.5" just past the starter, and splits off to dual 3" near the rear.

If your serious about doing a turbo some day, then spend some time now educating yourself. A good source of info is turbomustangs.com go there and read for a couple months.

David
 

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If your serious about doing a turbo some day, then spend some time now educating yourself. A good source of info is turbomustangs.com go there and read for a couple months.
David
Couldn't agree more, if you really plan on doing a boosted application, get educated first, it'll save you time, money, and frustration later on. I'll be honest, your question today alone means you definitely should do some reading on the subject. Personally, I encourage reading actual tried and true literature so you can tell what is bs out there on forums and who actually knows accurate info to share with you. A must read IMO if you are doing a custom turbo setup is Corky Bell's "Maximum Boost". Here's a pdf file for it:
http://www.sufi.cc/Maximum_boost.pdf
 

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you have alot of reserach to do. if you want a turbo under the hood do a single kit it will cost less and be easier to setup. and yes you can have dual exhaust with a single turbo
 

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you have alot of reserach to do. if you want a turbo under the hood do a single kit it will cost less and be easier to setup. and yes you can have dual exhaust with a single turbo
plus a single turbo would be easier to tune than a twin turbo setup, if he's going sequential.

but if I'm understanding his question accurately, he was wondering if you can have a true dual, or engine back dual exhaust, which he wouldn't be able to on a single turbo, although, yes, he would be able to split it off into a dual afterwards. Unless you know some secret that I'm unaware of like a twin exhaust turbine turbo or something.
 

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You can have a dual exhaust with a single turbo although there will always be Y pipe with a single turbo.
Ditto.

There's only one outlet on one turbo.

And THEN there's probably a most important question riding shotgun with this....
just where are you planning to put this turbo(s)? Believe me, I've mapped this idea out a bit. Dodge 2.2 turbos are easy to come by, and given a proportional factory turbo size to displacement, are perfect for a 4.6L if run as a dual setup, in my opinion. (and they're water-cooled to boot. Skip the GM equivilants) Some here have managed to get one or two (possible aftermarket) turbos in there, but I can almost guarantee that it isn't gonna look factory. Either way, you either have metal fab skills to D.I.Y. as much as you can, or a fat checkbook to counter.
 

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You could fit a single MP70 where the air box is you will also need to delete the ac build custom manifolds and hot side parts. Cold side plumbing, wastegate, intercooling, fuel system upgrades, possibly ignition upgrades and for big power lots more will have to be upgraded it can get spendy
 

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You could fit a single MP70 where the air box is you will also need to delete the ac build custom manifolds and hot side parts. Cold side plumbing, wastegate, intercooling, fuel system upgrades, possibly ignition upgrades and for big power lots more will have to be upgraded it can get spendy
Stock ford ignition should work up to 400HP last time I've hear. If you plan on going beyond 500hp, then you do...
One thing though, it's not cheap. So be prepared to spend lots of money...
 

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I only trust two people in this Turbo thread.....bill and Senor Neibert. Everything else I am hearing is a bunch of useless hodgepodged info without much to back it up.
 

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You could fit a single MP70 where the air box is you will also need to delete the ac build custom manifolds and hot side parts. Cold side plumbing, wastegate, intercooling, fuel system upgrades, possibly ignition upgrades and for big power lots more will have to be upgraded it can get spendy
Well, after a little measuring and "dummying up" under the hood, I think it is indeed possible to have two turbos under the hood here. One in the stock battery location (moving the battery to say, the trunk), and one over in the stock airbox location (obviously deleting the whole shebang in lieu of the complete turbo air intake system). Would take some creative fabbing to plumb, but it could cetainly be done. Keep in mind though I'm choosing and using the stock mopar 2.2L Turbo as my own personal dimension guidelines simply because of my familiarity of those, so YMMV for whatever aftermarket setups you may have.

Now, my next thorn here would be heat. You can bet that the paint will blister and peel right off the hood where the turbos are.....might have to get creative with some vents of sorts on the hood over where the turbos are located, keeping the airflow working to exchange the heat while still keeping any rain and wet from dripping down on the hot stuff.
 

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i built two front mounted setups with flipped JBAs and the chrysler Tb03s and had one of them running. The chrysler T3s have a .42/.48 ar housings they spool quick. My 4.0 spools one chrysler T3 by just under 2K. You will have to make flanges for the inlet as no aftermarket T3 flange will fit ( they use a special chrysler specific T3 flange)

with this setup below i could still run the radiator just tilted froward at the bottow. as for heat even if there an inch from the hood wrap them in a turbo blanket and they should be fine.

 
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