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Street Build 95 GST from Tucson

Year:
1995
Model/Trim:
Mitsubishi Eclipse GST
  1. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
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  2. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Here's a little backstory on the GST. I purchased it for $1200, while it had an overheating issue. Turns out it didn't have any coolant in it, so I filled it up and drove it home with no problems. Eventually it would get low due to bad coolant hoses and a faulty radiator cap. That is the reason that I purchased it for so cheap. Turns out the AC worked as well so that was a bonus. Ran extremely rich, also had a warmed up high idle which I am still dealing with.

    The car overall is in good condition for its age, and since it was an Arizona car there isnt any rust on it whatsoever. Paint is okay except on the pass. door that was involved in an accident sometime in its life. Interior is in decent shape not including the headliner and the sun visors. The Arizona heat has done a number on them.

    I've done most of the routine maintenance on it so far, including full tune up, hoses, gaskets, and more to come as well including timing belt, balance shaft belt, and water pump. I'll be posting more as more happens
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
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  3. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Still dealing with some auto trans bugs. Shifts fine when its cold, but once its warmed up it shifts really rough. Doesn't slip at all, but it shifts rough. especially the downshift from 4th to 3rd when coming to a stop. I will be replacing the fluid and the filter along with the cv axles in a week or so. Hopefully that takes care of that problem.

    Another issue I'm having with it is the charging system. I recently replaced the alternator and the battery with an Optima Red Top, and it still isn't putting out enough voltage to run my accessories. My amp for my sub is displaying a low voltage light, and my boost controller isn't functioning as it should. Display lights up and works, but the boost pressure doesn't change. I believe it is a voltage issue because when the old battery went bad, the alt was charging fully, and the boost controller worked perfectly as well as the amp. If anyone has had this problem, any help would be appreciated.
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  4. Gandalf

    Gandalf Proven Member

    51
    27
    Joined Dec 19, 2017
    ll, Oregon
    1997 Eagle Talon TSi AWD

    Street Build

      manual
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  5. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Thanks for the help Gandalf, hopefully that is the case. Don't know any of the history of the car so I'll have to check on that. Still working on the charging system, I'm totally out of ideas on why its acting up. Doesn't want to charge at a full 14 volts, it just wants to stay around 13 for some reason. New battery/ terminals, new alternator, I even ran an extra 4 gauge wire directly off the alternator to the battery. Its frustrating that I cant use any of my accessories at the moment. The strange thing is that it will charge enough so that the battery doesn't go dead, but it wont charge at a full 14v. Any help is appreciated
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  6. Gandalf

    Gandalf Proven Member

    51
    27
    Joined Dec 19, 2017
    ll, Oregon
    how many auto parts store alternators have you tried... the magic number is usually 3 or 4 before you get one that works (they will tell you nothing is wrong with it). the ones from napa are reportedly the best ones.. i think they are bosch.
     
    1997 Eagle Talon TSi AWD

    Street Build

      manual
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  7. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    I think the alt is good, because it will ramdomly start charging correctly throuought the drive. I don’t know though I may have to get another one. Also looking into the galant alternator setup. This is the only one I’ve tried and it is the Bosch I believe
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  8. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Just blew a headgasket on Monday. Compression is leaking between #3 and #4. I plan on getting it all done here in the next two weeks. I'm getting the head completely done, I have a new timing belt/ component set that is going on as well. I plan on doing the intake/exhaust gaskets, the throttle body gaskets, new 02 sensor, new cv axles, coolant temp sensors, and possibly throw on the 14b that I have as well. Any other suggestions on things I should do while its torn apart?
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  9. A_USER_NAME

    A_USER_NAME Proven Member

    99
    12
    Joined Aug 9, 2012
    Sahuarita, Arizona
    Good to see another Southern Az DSMer! Might as well cam it :p
     
    1995 Mitsubishi Eclipse GSX

    12.088 @ 117.01 MPH
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    Archer Fabrications likes this.
  10. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Pulled the head off today. Found a little more about the history of this car. It’s been rode hard and put away wet. Sometime in it’s life it’s had a rebuilt engine put in, and on that rebuilt engine a new head. I found some stamps on the pistons that I’m not too sure what they’re for. Figured might as well do the starter and all the mounts while It’s mostly exposed. Hopefully when this is all done it’ll be good to go for a while. If someone knows what the stamps on the top of the pistons means please chime in, it’d be nice to see what this engine is about. It says 0.50.
     

    Attached Files:

    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  11. A_USER_NAME

    A_USER_NAME Proven Member

    99
    12
    Joined Aug 9, 2012
    Sahuarita, Arizona
    Looks like your valves hit that piston, can you post a pic of each piston?
     
    1995 Mitsubishi Eclipse GSX

    12.088 @ 117.01 MPH
    Loading...
  12. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    The pistons have some smileys, but that is from before the last head replacement in its time. The valves in the head I just removed aren’t bent. Head seems to be in good shape too.
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  13. A_USER_NAME

    A_USER_NAME Proven Member

    99
    12
    Joined Aug 9, 2012
    Sahuarita, Arizona
    Ahh gotcha :hellyeah:
     
    1995 Mitsubishi Eclipse GSX

    12.088 @ 117.01 MPH
    Loading...
  14. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Just got the motor re assembled today along with all new mounts and a new starter since I was in there. Started right up, but it seems really sluggish and was only hitting 5psi of boost where before it was hitting 15lbs. Exhaust gaskets are all new intake manifold gaskets are all new. I think it may be a little out of time. I was extremely careful with the cam gears and the belt, but I think it may have jumped a tooth. Accelerates really slowly off the line. Any ideas on what may be causing this?
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
    A_USER_NAME likes this.
  15. chrysler kid

    chrysler kid Proven Member

    1,594
    379
    Joined Dec 20, 2002
    Mckinney, Texas
    Perform a boost leak test. You probably missed an intake manifold bolt
     
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  16. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    I will do so. Does it seem to you like a boost leak vs timing issues?
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  17. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Had a boost leak in the intake and j pipe. All seems to be good now. Thanks again
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
    chrysler kid and A_USER_NAME like this.
  18. chrysler kid

    chrysler kid Proven Member

    1,594
    379
    Joined Dec 20, 2002
    Mckinney, Texas
    Yeah if it was timing the car would sound off at idle, like it had a slight miss
     
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  19. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Thanks for the help dude. I’m also still having a high warmed up idle, and I can’t understand it. I replaced all the gaskets when I had the head off. Not sure here I’m stumped
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  20. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Have some more updates on the car. It now has an Evo 3 16g, link, and pte 880cc injectors. Also threw on a set of Evo 8 Enkeis. Tuning with link is a new thing for me, so I’m still getting to know it.
     

    Attached Files:

    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  21. streetraceboi

    streetraceboi Proven Member

    375
    69
    Joined Sep 4, 2002
    San Antonio, Texas
    Did you paint the valve cover yourself?
     
  22. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    I had it powder coated here locally. The color is something like Jamaican teal. I’d never seen it on a dsm valve cover so I figured I’d do it
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  23. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Got a lot done on the gst this week, did the oil pan gasket, helicoiled some valve cover bolts, replaced the alt with a high output alt, installed a 190 Wally and stm rewrite kit, new filter to rail line, and installed an lc-1 wideband.

    I’m having a weird issue with AFRs though. It will stay around 14 until I hit 10-12 psi. After that it will hold solid around 11-10.5 up to 20 psi. I’ve messed around with the fuel in link which has helped a little but still not where it needs to be.
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...
  24. EVLGSX

    EVLGSX Proven Member

    190
    47
    Joined Dec 7, 2017
    Wallingford, Connecticut

    Thats how it should be
     
    1997 Mitsubishi Eclipse GSX

    Street Build

    16g   manual
    Loading...
  25. Jacob_Barnes520GST

    Jacob_Barnes520GST Proven Member

    82
    7
    Joined Feb 21, 2018
    Tucson, Arizona
    Here's an update. After a long electrical battle with the injectors not firing, the headgasket blew on its first drive in months. Put a "good" rebuilt head with new gasket and ARP studs. Turns out I have a few bent valves. I made sure it was in time when i put it together and also rolled it around by hand with no resistance, so they must have been bent when I put it in.
    Also, what torque has everyone used on the ARP studs? Just curious to see what everyone has done
     
    1995 Mitsubishi Eclipse GST

    Street Build

    16g   automatic
    Loading...

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