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2G Convert a 1999 Eclipse Spyder GS from Auto to Manual?

Posted by Domixx267, Sep 10, 2020

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  1. Domixx267

    Domixx267 Probationary Member

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    Philadelphia, Pennsylvania
    Hey guy I'm having a big problem...need help bad..I have a 1999 eclipse spyder gs with a 4g64 automatic..ok now I want to make it 5 speed...this the thing I had a 1996 eclipse rs that was manual..so I decided to take the 4g64 out and swap with a 420A..all the fabrication is done the engine is all bolt it down ready to ride...but one big problem...I got bo power to the starter..everything else working but no fuel no cranks...I use the 420a main harness with ecu..are the gs and rs car harness are different or something plz help me
     
  2. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    To answer your last question, the wiring harnesses from the GS and RS were identical. Unless you are referring to the Spyder harness, which is meant to power the 4g64 and other accesories.
     
    Last edited by a moderator: Sep 10, 2020

    Road Race Build 4K  10  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    77  5

    1998 Ford Mustang GT
    rwd · manual · Misc Vehicles
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    Domixx267 likes this.
  3. Jays99Spyder

    Jays99Spyder Proven Member

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    Joined Feb 22, 2020
    Waukegan, Illinois
    Just a question, why fab a 420a to fit when a 4g63 bolts right in? I did a manual swap on my auto spyder even used the same harness.
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
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  4. Jays99Spyder

    Jays99Spyder Proven Member

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    Waukegan, Illinois
    Now that I'm thinking about it this seems pretty sus.. I'm pretty sure you cannot put a 420a in a gs spyder
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...
  5. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    Well you can but you have to cut out the mounts and weld other ones in. You also have to get the proper axles and ecu and qring etc etc... can be done but not recommended. Which is why he is having troubles.
     

    Road Race Build 4K  10  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    77  5

    1998 Ford Mustang GT
    rwd · manual · Misc Vehicles
    Loading...
  6. Jays99Spyder

    Jays99Spyder Proven Member

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    Joined Feb 22, 2020
    Waukegan, Illinois
    This build still seems sus..if he wanted to concert it to manual he should hace kept the 4g64(still better then 420a) and put a manual trans..then clutch master cables and shifter and pretty much done. Less work, less money, and better results j/s
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...
    spyderdrifter and BLACK'98DSM like this.
  7. BLACK'98DSM

    BLACK'98DSM Proven Member

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    Hoover, Alabama
    That's highly debatable. Do some reading on it. It's low end vs high end and the reliability factor... also have to consider the aftermarket parts base and tunability of each... but enough of that. I definitely see what you're saying. But why would the guy lie about doing such a swap and then ask legitimate questions about it?

    O.P if you could any any more info or pics and ask us anymore questions
     

    Road Race Build 4K  10  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    77  5

    1998 Ford Mustang GT
    rwd · manual · Misc Vehicles
    Loading...
  8. Jays99Spyder

    Jays99Spyder Proven Member

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    Joined Feb 22, 2020
    Waukegan, Illinois
    Yes more pics more questions..we will try or best to find answers
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...
  9. Domixx267

    Domixx267 Probationary Member

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    Joined Sep 10, 2020
    Philadelphia, Pennsylvania
    Ok I will show ya pic...i know the 4g better then a 420..but like I said I had and auto spyder with bad motor and bought a rs eclipse good motor and 5speed trans just bang up bad in the rear..but anyway not knowing that they where different orientation but I still swap it but like i said everything works but is look like i need to bypass the neutral safety system
     
  10. Jays99Spyder

    Jays99Spyder Proven Member

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    Waukegan, Illinois
    well now I'm interested, how did you do the swap? Did you fad the engine mounts or the engine bay mount brackets? Did the under support bar bolt right in for the transmission mount?
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...
  11. m_0ney_pit

    m_0ney_pit Proven Member

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    Reading, Pennsylvania
    Pictures? I think you have a few people interested now
     

    Street Build 2K  1

    1999 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  12. Domixx267

    Domixx267 Probationary Member

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    Joined Sep 10, 2020
    Philadelphia, Pennsylvania
    I'm also gonna do the evo swap and fit just like the 420
     
  13. Jays99Spyder

    Jays99Spyder Proven Member

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    Waukegan, Illinois
    I'm not trying to play myth busters here, just I don't really see the point to go from 4g to 420a, then do the work to Evo swap it, just to get pretty much a gsx. That's just my .02 if you do it cool just document the build in your dsm profile to share your experience with others.
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...
  14. Domixx267

    Domixx267 Probationary Member

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    Joined Sep 10, 2020
    Philadelphia, Pennsylvania
    I took the subframe out the rs bolt rigth up in the spyder then on the passenger side motor mount I drilled it out and weld it in the passenger side on the spyder now all I has to do is make sure that the engine is level then I weld the transmission Brackets on driver side on the spyder ez if u hot the whole car the rs was no saving it was total from the rear end that why I swap the whole thing into my spyder shell
     
  15. Domixx267

    Domixx267 Probationary Member

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    Joined Sep 10, 2020
    Philadelphia, Pennsylvania
    But my issue is that I'm using the wiring harness that is already in the spyder...not the engine harness the car harness..so idk if they are different..I'm using the 420a engine harness with the ecu...everything connected but when I try to start the car I get no fuel pump and not power to the starter but if I jump the starter engine spins but no gass..
     
  16. Jays99Spyder

    Jays99Spyder Proven Member

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    Waukegan, Illinois
    I'm confused so did you also do this to the mount that goes on top of the trans, what about the rear mount?
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...
  17. Domixx267

    Domixx267 Probationary Member

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    Joined Sep 10, 2020
    Philadelphia, Pennsylvania
     

    Attached Files:

  18. Domixx267

    Domixx267 Probationary Member

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    Joined Sep 10, 2020
    Philadelphia, Pennsylvania
    1600300238674172841040774436790.jpg
     
  19. Jays99Spyder

    Jays99Spyder Proven Member

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    Joined Feb 22, 2020
    Waukegan, Illinois
    Very interesting. Well I'm not sure about your problem because I have never seen this swap done before. Idk make sure all connections are made and if it still doesn't work try the 420a body harness
     

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...
  20. Domixx267

    Domixx267 Probationary Member

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    Joined Sep 10, 2020
    Philadelphia, Pennsylvania
    Everything connected imma have to get the 420 body harness if not imma just megasquirt it
     
  21. Jays99Spyder

    Jays99Spyder Proven Member

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    Joined Feb 22, 2020
    Waukegan, Illinois
    Didn't the donor car have a body harness?
     
    Last edited by a moderator: Sep 18, 2020

    Street Build 321  4

    1999 Mitsubishi Eclipse GS Spyder 4G63 Swap
    fwd · manual · 4G63t Swapped
    Loading...

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