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

Boostin' SE

Old Jun 22, 2005 | 11:38 AM
  #26  
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Originally Posted by Hyper4mance2k
i don't think the redneck knows anything he's talking about... No flames just look to people who've done it for advise...
Hope this isn't intended to me because I'm from Kentucky
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Old Jun 22, 2005 | 12:49 PM
  #27  
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Originally Posted by Tsi_Xtreme
for everyones infomation you can't use a SAFC on a GSL-SE. I'm doing almost the same kinda set up right now.
Sure you can. I've seen it done hundreds of times. The GSL-SE has both an AFM and a TPS, which is all you need to use the S-AFC.
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Old Jun 22, 2005 | 12:55 PM
  #28  
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go for it you already have the 3 mil apexseals
i am planing somthing similar i have two 85gsl se rotors that i will build in to my t2 engine
no margin for error when the 3 mil apex seals are stock
high comp to
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Old Jun 22, 2005 | 01:41 PM
  #29  
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Originally Posted by Aaron Cake
Sure you can. I've seen it done hundreds of times. The GSL-SE has both an AFM and a TPS, which is all you need to use the S-AFC.
yea but if you look into it more... the afm puts out a 12v in a SE and the SAFC wants a 5 volts i believe... or vise versa... but overall it doesnt work... believe me i've already attempted to install it... and plus the MS is way better, with it i can have up to 16 injectors, i get ride of the AFM, and yeah... i can tell when i want those secondaries to kick in ect ect ect
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Old Jun 22, 2005 | 01:59 PM
  #30  
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^^ I thought the GSL SE had single piece 2mm apex seals.

^The SAFC has settings to accept signals from all styles of air flow sensors (MAP included) It will accept almost any voltage

To thread starter
For ignition, your stock distributer advances the timing as rpms rise, so you will have to have the internal advancing mechanism welded so that it stays constant. Or you can talk to the guy at rotaryshack.com and he will hook you up with one that is modified and cleaned and everything. A 12a turbo distributer would be great! But they are hard to find and usually fairly expensive. Also you should look into a MSD boost timing master. For spark plugs you may want to look into getting a set of TII plugs, not sure, but they may fire better under boost. However i have heard of people using 1st gen plugs on TIIs (dont know if that is a good idea or not).

If it were me, i would just run 4 720cc injectors. Or 4 680cc injectors, that should be plenty of fuel and probably a little easier to tune, but i dont know exactly how the megasquirt works as far as tuning goes so, that may not be an issue. Whatever you do, make sure the injectors are basically new, or have them cleaned and blueprinted and make sure they are flowing properly.

A FMIC is a good idea because you will definately need to cool the charged air, but make sure your radiator is still able to keep things cool. Anything you can do to reduce under hood temps and inturn reduce intake temps will make things safer for your engine. A vented hood would certainly help things. Anything to cool the oil better will help too. If you can make an intake for the inducer on the turbo that puts the air filter in a place where cool air is readily available that will help too. The hotter the air is when your turbo sucks it in, the hotter it gets as its compressed.

Your problem will be keeping the engine from knocking with the high compression on the N/A 4 port 13b. You will want to tune very conservatively (keep things pretty rich) and again do anyting you can to keep intake temps down. If you dont have a wideband o2 sensor, GET ONE! The S4 turbo isnt very efficient and will make for much hotter than desired temps at anything over stock boost, so if you want to up the boost get a better turbo and wastegate.

I dont know what intake manifold will fit your engine, but i dont think a 6 port manifold is the way to go, even with an adapter, that just seems messy. Either have a manifold made or weld extra injector bungs on the stock one or buy one that will work for this type of thing. You could get a holley intake manifold and get a throttle body with a holley foot print, you can often get one set up for injectors and stuff already.

Anyway, thats my 2 cents!

Last edited by Skabidat; Jun 22, 2005 at 02:04 PM.
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Old Jun 22, 2005 | 02:06 PM
  #31  
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Oh dear again. I've seen the S-AFC used in the GSL-SE plenty of times. So unless we have a bunch of people modifying their AFMs and ECUs, it stands to reason that the S-AFC also supports a 0-12V input as well.

^^ I thought the GSL SE had single piece 2mm apex seals.
GSL-SE apex seals are 3MM.

^ All injectors use a 12 volt signal, it should work, maybe you didnt hook it up right. The only difference from one type of injector to another is amperage. And the SAFC has settings to accept signals from all styles of air flow sensors (MAP included)
S-AFC doesn't have anything to do with injectors. Unless we are talking about two different things.
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Old Jun 22, 2005 | 02:14 PM
  #32  
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Originally Posted by Skabidat
^^ I thought the GSL SE had single piece 2mm apex seals.

^The SAFC has settings to accept signals from all styles of air flow sensors (MAP included) It will accept almost any voltage

To thread starter
For ignition, your stock distributer advances the timing as rpms rise, so you will have to have the internal advancing mechanism welded so that it stays constant. Or you can talk to the guy at rotaryshack.com and he will hook you up with one that is modified and cleaned and everything. A 12a turbo distributer would be great! But they are hard to find and usually fairly expensive. Also you should look into a MSD boost timing master. For spark plugs you may want to look into getting a set of TII plugs, not sure, but they may fire better under boost. However i have heard of people using 1st gen plugs on TIIs (dont know if that is a good idea or not).

If it were me, i would just run 4 720cc injectors. Or 4 680cc injectors, that should be plenty of fuel and probably a little easier to tune, but i dont know exactly how the megasquirt works as far as tuning goes so, that may not be an issue. Whatever you do, make sure the injectors are basically new, or have them cleaned and blueprinted and make sure they are flowing properly.

A FMIC is a good idea because you will definately need to cool the charged air, but make sure your radiator is still able to keep things cool. Anything you can do to reduce under hood temps and inturn reduce intake temps will make things safer for your engine. A vented hood would certainly help things. Anything to cool the oil better will help too. If you can make an intake for the inducer on the turbo that puts the air filter in a place where cool air is readily available that will help too. The hotter the air is when your turbo sucks it in, the hotter it gets as its compressed.

Your problem will be keeping the engine from knocking with the high compression on the N/A 4 port 13b. You will want to tune very conservatively (keep things pretty rich) and again do anyting you can to keep intake temps down. If you dont have a wideband o2 sensor, GET ONE! The S4 turbo isnt very efficient and will make for much hotter than desired temps at anything over stock boost, so if you want to up the boost get a better turbo and wastegate.

I dont know what intake manifold will fit your engine, but i dont think a 6 port manifold is the way to go, even with an adapter, that just seems messy. Either have a manifold made or weld extra injector bungs on the stock one or buy one that will work for this type of thing. You could get a holley intake manifold and get a throttle body with a holley foot print, you can often get one set up for injectors and stuff already.

Anyway, thats my 2 cents!

thankd bud... all that helped... except you made a boo boo... the SE has 6 ports... the the S4 intake will work... no adpater needed... the adpater is for the exhaust manifold... but dont worry about that... otherwise thanks alot for the info... food stuff...
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Old Jun 23, 2005 | 12:15 AM
  #33  
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Originally Posted by Aaron Cake
Oh dear again. I've seen the S-AFC used in the GSL-SE plenty of times. So unless we have a bunch of people modifying their AFMs and ECUs, it stands to reason that the S-AFC also supports a 0-12V input as well.
are you talking about a SAFC on the first gen GSL-SE? Because I haven't hear of one person successfully getting one to work on the first gen GSL-SE
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Old Jun 23, 2005 | 12:25 AM
  #34  
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you could use a tii intake manifold set, just port match it, its been done before, and you'll have plaenty of turbo room to use the stock exhaust manifold.
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Old Jun 23, 2005 | 10:18 AM
  #35  
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Originally Posted by Tsi_Xtreme
are you talking about a SAFC on the first gen GSL-SE? Because I haven't hear of one person successfully getting one to work on the first gen GSL-SE
Yep. Though I may be wrong. These people may have been running S4 electronics...
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Old Jun 23, 2005 | 10:21 PM
  #36  
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I am confused, i could have sworn that the 13b GSL-SE had 4 ports! Did they make them with 4 and then go to 6 later?
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Old Jun 23, 2005 | 10:35 PM
  #37  
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nope... all SEs had 6 ports...at least i'm 99% sure
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Old Jun 23, 2005 | 11:36 PM
  #38  
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I know i have seen an N/A 4 port 13b in a GSL-SE, it may have been something someone put together, but i thought it was a stock engine.
I just looked on RB site at intake gaskets and it looks to me like from 74 to 78 the 13b was a 4 port (maybe from 78 to 83 too?) and the 84-85 13b was a 6 port. It says "Photo shown is of actual gasket." I hope this is right, it still hurts my feelings that i didnt know there where 6 port GSL-SE's. Also if you look at the j-spec engines for sale on teamFC3s.org they dont even list the 6 port 13b but they have the n/a 4 port 13b (for 1st gens) listed.
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Old Jun 24, 2005 | 02:38 AM
  #39  
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there was a 13b carbed engine too... so therefore that would have been 4 ports... so maybe thats what you say swithced over to EFI... but i'm more then 99% possitive that all GSL SE (84-84) have 6 ports... along with all the other NA in the FCs except the SEs didnt have the 4 injectors like the FCs did... which is a same... lol
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Old Jun 24, 2005 | 10:37 AM
  #40  
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All GSL-SE 13Bs are 6 port. GSL-SE 13Bs have two 680CC injectors.
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Old Jun 24, 2005 | 11:16 AM
  #41  
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Well, sorry i F'ed up guys I knew they had 2 680cc injectors and everything, i just some how got mixed up on the ports. So there was a carbureted 4 port 13b in some FBs? Anyone know what models these where? Or if they werent in FBs what were they in? Sorry, dont mean to steal the thread, just curious. Anyway, thanks for straitening me out!
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Old Jun 24, 2005 | 01:31 PM
  #42  
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i'm not to sure exactly... does anyone know... i think it was in the SAs they had that... but i dont know for sure...
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Old Jun 24, 2005 | 01:41 PM
  #43  
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The only two engine available in the 1st gen was the carbureted 12A, and EFI 13B. 13B in the GSL-SE, and 12A in all other models.
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Old Jun 24, 2005 | 01:47 PM
  #44  
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i know... but i remember someone telling me that you could get a 13b carbed.... or would that be aftermarket... like taking all the EFI stuff off and putting the carb on?
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Old Jun 24, 2005 | 01:52 PM
  #45  
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Aftermarket. Or from an early rotary vehicle...REPU comes to mind....
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Old Jun 24, 2005 | 01:55 PM
  #46  
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yea i think thats it... and i believe he put it in a 7 so i guess i figured it was stock... so i thought there was a 12a carbed, 13b carbed, and 13b efi... god i fought for a long time with that guy... but then i lost the battle between there being a 13b carbed...
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