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update 86 turbo xt mods
Posted 21 August 2003 - 08:51 PM
Posted 22 August 2003 - 01:36 AM
Now, you will also probably want to get a good A/F Ratio meter, adn a boost gauge. The boost gauge will help keep you from running too high a boost, say, if your wastegate decides to stick shut, and the AF meter will show you if you are running lean, a condition which can melt pistons, among other things.
Also, take your airbox out and cut the bottom of it out, this will increase the intake airflow. You can also remove the intake silencer out of the passenger side fenderwell, but this is not 100% necessary if you cut out the airbox. This will also make your car make cool turbo sucking noises that make the ricers scatter:brow:
Posted 22 August 2003 - 02:30 AM
Posted 22 August 2003 - 10:18 AM
Posted 22 August 2003 - 11:07 AM
Posted 22 August 2003 - 11:46 AM
Posted 22 August 2003 - 07:45 PM
I'd be weary of just cranking of the boost. An intercooler is a good idea. I've read that a Saab 900 intercooler should work ok on your car. Also, an air/fuel ratio and an EGT gauge would be a good idea. At least an EGT gauge to look at your exhaust temps.
This is a start. Good luck! I hope to someday own a turbo 1.8ltr engine from one of these guys that is in good condition so I can start modifying it. L8Rs
Posted 23 August 2003 - 02:03 AM
Posted 23 August 2003 - 01:38 PM
It's going to be a while before I get to that point. Found out the Exhaust manifold pipe had a huge hole in it, and basically broke in half. Now I need to find a new one
Posted 23 August 2003 - 03:57 PM
Posted 23 August 2003 - 04:33 PM
Posted 23 August 2003 - 04:55 PM
They did this by using a "dash pot"
Little known and not often mentioned devise slows the throttle closing just before idle and allows some of the boost pressure leak by the throttle butterfly.
I have a Volvo By Pass valve unit fitted to my 87 5 speed turbo and it does help a little compared to the well adjusted dash pot.
Newer cars use BPV's because they have higher factory boost pressures.
Here is a link to a picture of a few of my mods
It is a Starion intercooler BTW
email me if you have any questions
Posted 23 August 2003 - 10:22 PM
Aha! So that's YOUR wagon that I have seen pics of. I remember reading off of your website of your wagon before and had planned on doing similar mods to an old school scooby I had planned on buying off of Dennis here. Those mods seem really cool (pun intended) and helpful. Really nice ride Skip!
Skips Turbo/Intercooled Wagon Page
Posted 24 August 2003 - 12:07 AM
Posted 26 August 2003 - 02:35 AM
Posted 26 August 2003 - 10:17 AM
The WRX hood scope is difficult to mount on the EA82. It's wider than the hump on the hood. Subarutex is getting contact info for a company that makes a WRX style scoop that is narrow enough to fit there and looks really good. He has one on his 87 RX and it's stylish yet functional:headbang:
Posted 27 August 2003 - 01:02 AM
Originally posted by dj72
Does anyone have any timeslips that i could compare mine too, i'm just curious to see what other turbo soobs do. My best so far is a 15.8 at 83mph. I would also like to know if anybody has upgraded their fuel injectors on an ea82t and what size and maybe some part numbers. Thats what i'm going to work on next since i finally found an intercooler (92 supercharged cougar). dj
For timeslips and such, you can contact a gentleman in Alaska whose name is David Gronemeier. A guy on the Yahoo XT6 forums (named Red#6) told me about him. He has a 1.8ltr XT turbo running mid to high 13 second 1/4 mile times. I'm sure David is using something for fuel management, upgraded injectors or both. David's email address is: Meritage@cgi.net Let me know if it doesn't work because that's what I have at the Subaru 1/4 Mile Registry that I run.
Another David (David Gustavsson) of ProECM uses a fuel injection controller on his XT6. It's called a ProECM Fuel Injection M1 #EFIM-1. Stop by the ProECM site to email him for more info about it. I plan on using it on my XT6. Here is info he sent me in July about it. I'm not sure if the unit(s) is ready though. The info is quite long. Good luck!
ProECM Fuel Injection M1 #EFIM-1
Reached the fueling limit of the stock ECU? ProECM M1 is the answer, a
completely programmable fuel injector controller. The M1 fuel injector
controller is a piggyback controller that makes it possible to control
injectors in a way that only full blown stand alone Engine Management
have been able to do before. The M1 rivals the functionality of a
Engine Management, but delivered for significantly lowered cost. The
M1 does not use two tables to calculate a 3D surface. It is a
non-linear system for true non-linear programming. This is a necessity
accomplish exact A/F ratios in all operating conditions. The ProECM M1
installs in parallel with the stock ECU to utilize the stock sensors.
makes for a very flexible and powerful control unit that will define a
era of additional fuel injector controllers. With a very powerful
programmable peak and hold drivers, the ProECM M1 is capable of driving
high and low impedance injectors.
All these sensor inputs are optional except for the MAP (Intake
vacuum hose) and crank trigger. This makes the ProECM M1 very capable,
very simple to install.
a.. Throttle position sensor
b.. Intake manifold absolute pressure (MAP sensor)
c.. Intake air temperature (IAT)
d.. Engine coolant temperature (ECT)
e.. Built in pressure sensor up to 20lbs of boost
f.. Built in Battery voltage sensing.
g.. Auxiliary Analog input 1, can be used for oxygen sensor.
h.. Crank trigger.
a.. 4 channels to control fuel injectors. Up to 4 injectors per
for a total of 16 injectors.
b.. RS232 for data logging.
a.. Base map uses 0RPM up to 12400 RPM at 200RPM intervals and 0 to
of absolute pressure with 17 programming points. 561 Programming
Linear interpolation between programming points.
b.. Base time is programmable between 0-655.35 ms, with 0.01 ms
c.. Data logging functionality. Logs all sensor inputs and RPM.
a.. The ProECM M1 is a universal fuel injector controller designed to
fitted as an additional fuel injector controller that can be fitted on
engine using the sensors desirable for tuning.
a.. Comes with Windows based tuning software
b.. RS232 Computer cable.
c.. Installation manual and wiring diagrams
Posted 27 August 2003 - 08:34 PM
Posted 23 September 2003 - 01:35 PM
Posted 23 September 2003 - 03:01 PM
keep me posted on your progress...my car (still a work in progress) is set up similar to what youre attempting, pretty interesting...
the biggest bore pistons subaru sells for EA82ts is .050 over but i totally forget if theyre availible forged or not, i believe they are but you have to request them specifically.
about the turbo, the one on my XT installed by the previous owner is a VF10/11 from a 2.2l legacy with WRX exhaust there after. its a tight squeeze, and the converters sit a little lower then id like, but the sound is awesome and theres so many different ways you could go aftermarket if you went with this set up. plus its a nice upgrade from stock, and so many people on iclub are ditching the stock systems for aftermarket...
hot cams are availible from a company called paeco i think, they have a website...just do a search and you should come up with it.
my car is in a wierd "pre-tuned stage" right now. its very fast, yet reliable but there are a bunch of things that need to be squared away to make it a true runner. im having a weak spark issue, and this is with a monster blaster 2 coil from MSD, i need an A/F gauge installed badly and some suitable wheels to go with the 5 lug hub swap.
feel free to email if you wanna shoot the proverbial bull
Posted 08 October 2003 - 09:03 PM
Posted 26 October 2003 - 08:34 PM
Originally posted by dj72
Thanks for the info. I have been talking to Carl at Paeco industries and he is custom making me my camshafts for me to the specs i gave him. I've also got the 50 over pistons o order. All said and done the motor should be pushing from 300-325hp, then with the 100 shot of nitrous on top of all this this is going to be one fun ride. To hook up all this power i'll be using bfg drag radials, can't wait to try it out. Should be done everything in about 3 weeks. More updates soon. thank you again for the info you gave me.
Well, projects rarely end on time or as planned but just in case.......3 weeks will be this Wednesday, 10-29-03. So how are things coming along? :-) Did you get those cams back from Paeco Industries yet?
Posted 27 October 2003 - 12:14 AM
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