2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Twin turbo

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Old Apr 23, 2006 | 10:55 AM
  #26  
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From: atlanta ga
run stand alone megasquirt.
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Old Apr 23, 2006 | 11:19 AM
  #27  
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If you can get the parts for the MS, I've been trying to get the error* daughter board kit for four months now, with no luck. Glens Garage has been out and I’ve had no luck else where.
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Old Apr 23, 2006 | 11:24 AM
  #28  
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looks like a tough project best of luck. keep us updated
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Old Apr 23, 2006 | 12:36 PM
  #29  
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From: Whiterock
Originally Posted by gray_86
you think that i will need more than the S-AFC with this setup i have had plenty of people tell me i should be fine!
You're gonna need something to control timing. MSD boost ignition at the least. If you don't wanna buy a EMS. Sell your SAFC and get a E-Mange so you don't blow the motor.
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Old Apr 23, 2006 | 03:58 PM
  #30  
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You will need MUCH more than the stock N/A injectors (460cc?) Probably best to go with a 550/1000 or 720/720 setup. Of course, bolting the TT setup of an FD onto an N/A FC is a pretty "hefty" task so this is probably the least of your worries...
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Old Apr 23, 2006 | 05:59 PM
  #31  
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From: lucan
i was going to run 720/890 marren injectors
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Old Apr 23, 2006 | 10:23 PM
  #32  
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From: atlanta ga
Originally Posted by 57bronco
If you can get the parts for the MS, I've been trying to get the error* daughter board kit for four months now, with no luck. Glens Garage has been out and I’ve had no luck else where.
you dont need it. the ms has a built in vr sensor if you get MS pcb 3. just detooth your cas, and thats it. will run fine with full spark controle. dual vr's are used for people who dont want to detooth their cas, just get another cas off the net to hack into.
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Old Apr 23, 2006 | 11:11 PM
  #33  
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i'm assuming youre not going to try to run them sequential... i've heard that the fd has a completely separate book for the mass array of vacuum hoses it takes to control those things. Should be sexy as hell though if you get her going good and clean.
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Old Apr 24, 2006 | 04:18 PM
  #34  
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why does he need a stand alone? if he gets the turbo computer, injectors and fuel pump and runs around stock PSI should he not be fine with what he has?
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Old Apr 24, 2006 | 04:22 PM
  #35  
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Originally Posted by t-too
i'm assuming youre not going to try to run them sequential...
he already saied its modified to run seqential
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Old Apr 24, 2006 | 04:25 PM
  #36  
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From: lucan
the guy that i bought them off of said he modded them so they run all together
so seqeuntial so i don't have to run all the vacuum lines
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Old Apr 24, 2006 | 04:59 PM
  #38  
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sounds like a disaster waiting to happen. Would be cool to see if you pull it off tho. Definately something i would be interested in. I would like to know how everything is done and what it is pushin. I like NA, but turbo is the ****. If i had the money i'd do it. :-D
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Old Apr 24, 2006 | 06:25 PM
  #39  
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Wow, If you pull this off and have the engine last more than 5k miles I'll be impressed.

Anyway
That spacer is a beast!! lol That thing looks pretty strong
I'm interested in pics of how your going to fit that in there.

Sequential sounds like a nightmare.
Unless your mechanic labeled the vac hoses he specially designed I doubt you'll run them sequential.

I would highly recommend a full blown EMS. The SAFC will manipulate fuel but timing will still need to be controlled.

A Rtek might even get it done.

Good luck and be careful getting that thing tuned.
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Old Apr 24, 2006 | 06:50 PM
  #40  
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From: lucan
I AM NOT USING THE STOCK N/A ECU I AM USING THE STOCK TURBO ECU AGAIN STOCK TURBO ECU NOT THE N/A ONE
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Old Apr 25, 2006 | 02:32 AM
  #41  
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SAFC is not a good tool for what your trying.

Get the rtek 2.0 or go full EMS.

Honestly your taking on a big project and your making it harder by using the stock ecu.

You first have to be careful because your using higher than normal compression.
Then your using higher than stock HP turbo's

Then your relying on a piggyback fuel manipulation to compensate for the increase.
You will also be limited to 550cc stock TII injectors as primaries to keep it drivable/good during start up maps.
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Old Apr 25, 2006 | 06:18 AM
  #42  
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Oh hey and dont forget that if you go sequential its going to be a nightmare dude and your gonna need more than the stock ECU...

LOL
JJ ; )
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Old Apr 25, 2006 | 06:33 AM
  #43  
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Originally Posted by _HeC_
why does he need a stand alone? if he gets the turbo computer, injectors and fuel pump and runs around stock PSI should he not be fine with what he has?
Are you implying the stock HT-12's run the same kind of airflow as a single HT-18?
Be careful what you're implying...

A stand-alone EMS is highly recommended.
Yes, the set-up can run on the stock Turbo II ECU, but it's not recommended.
The twin HT-12's have a lot more airflow potential than a single HT-18.

If this thing starts to blow engines, I would not be surprised.


-Ted
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Old Apr 25, 2006 | 06:36 AM
  #44  
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From: n
Originally Posted by gray_86
the guy that i bought them off of said he modded them so they run all together
so seqeuntial so i don't have to run all the vacuum lines
This is not possible.
The stock 13B-REW sequential twin-turbo system runs at 3 stages.
It uses electrically control solenoids and vacuum to control acutators.
I think one stage is progressively controlled, so it's not just an on or off thing.

How do you control such a beast when you yank all the vacuum hoses and solenoids off?

What you're describing sounds like a NON-SEQUENTIAL set-up.
I think you're getting the terminology confused.


-Ted
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Old Apr 25, 2006 | 07:30 AM
  #45  
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Originally Posted by gray_86
I AM NOT USING THE STOCK N/A ECU I AM USING THE STOCK TURBO ECU AGAIN STOCK TURBO ECU NOT THE N/A ONE
Hows your supply of carbon in Canada? I am finding it difficult to source even offshore.
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Old Apr 25, 2006 | 09:08 AM
  #46  
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A word of warning: The FD's twin turbo setup is one of the worst things ever concieved. Don't even think of running it sequentially unless you can build the control system (actually not that complicated with a small microcontroller and a few solenoids) and deal with the ~70 vacuum lines. In addition, these turbos save known to have a very short lifespan. Most of the used turbo sets on the market are either at the end of their life or close to it. Generally they start puking oil...

Anyway, looks like a great project. I'd highly recommend ditching the NA ECU and going with a standalone based on the amount of air those things will push. For the stock TII unit, the NA ECU is fine. Start getting into more airflow and larger injector sizes past 720CC or so and you run into problems with idle, daily drivability and the like. You know the downpipe will run into the frame rail, right?

Originally Posted by RylAssassin
Holy **** man thats crazy in the 3 years ive been on this forum ive never seen someone put the stock twins off of an FD on a N/A!
The only ones I've seen have not been completed. They get to the stage of bolting on the turbos, find out that the downpipe and intercooler plumbing is a nightmare, and then give up.

If everything goes well id say you be beating out Aaron here for custom work with those twins on an N/A. Thats a lot of work.
When he fabricates manifolds from scratch, then we start to talk.
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Old Apr 25, 2006 | 11:34 AM
  #47  
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I think some are confusing sequential with non-sequential. Sequential is when the first turbo spools, then the other comes on at a certain point in the case of the FD's..sequential/sequence...bleh.

Non-sequential means they will run at the same time, which IMO would be better.
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Old Apr 25, 2006 | 12:13 PM
  #48  
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id prefer a faster spool than a giant burst of two turbos at once myself, but maybe thats just me.

great project btw, very interesting
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Old Apr 25, 2006 | 03:56 PM
  #49  
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From: lucan
OH i thought that when the turbos ran seqeuntial that they ran together so i am not running them seqeuntial my bad
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Old Apr 25, 2006 | 07:01 PM
  #50  
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Are you doing your own work? B/c if you dont know about turbos and you dont even know the basic concept of sequential and non-sequential setups.... Then you are in for a good headache... But trust me, it should be too hard to fab. As long as you know how to weld and have your own tools... with a set of ***** to back it up... Good luck, bro. Make us FC owners proud...

Last edited by Apathy; Apr 25, 2006 at 07:08 PM.
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