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1G Precision torque converter

Posted by GSX_Dan, May 15, 2019

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  1. GSX_Dan

    GSX_Dan Proven Member

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    Joined Jun 27, 2004
    Chicago, Illinois
    Can a precision 1g converter be had for a 6 bolt/1g trans and yes I know there's a kit from Kiggly and JB Design but i don't want to convert to 2g trans as I have 2 1g trans and 1 is freshly built.

    I've ran into some threads from a long time ago where people have used precision converters without a kit/1g trans or before such kit even existed...can a 2g converter possibly work in a 1g trans if perhaps the lockup clutch passages are blocked off and input shaft/oil pump swapped?

    Even if I wanted a precision converter I see one has to go thru JB Design and he's not answering his facebook...
     
  2. OH91awd

    OH91awd Proven Member

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    chillicothe, Ohio
    im pretty sure jeff has a kit for a converter for the 1g trans. other than that youd have to find someone that has an old one as precision no longer makes them for the 1g trans directly through them.
     

    Drag Race Build 2K  17

    1992 Eagle Talon TSi AWD
    10.89 @ 125.67 · 1G DSM
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  3. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    Independence, Kansas
    And the bolt pattern is a 1/4 inch larger IIRC on a 2g converter so if it WOULD work you still might need a Kiggly FP. What converter do you run @OH91awd ?
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    419  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    415  17

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 592  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
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  4. OH91awd

    OH91awd Proven Member

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    chillicothe, Ohio
    i run the sinister 8" converter on mine. its been good to me so far
     

    Drag Race Build 2K  17

    1992 Eagle Talon TSi AWD
    10.89 @ 125.67 · 1G DSM
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    1990TSIAWDTALON likes this.
  5. GSX_Dan

    GSX_Dan Proven Member

    134
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    Joined Jun 27, 2004
    Chicago, Illinois
    I'm kind of leaning in the sinister direction now. I've only heard good things about them even if they don't have the fancy billet bits.
     
  6. SasaniFab

    SasaniFab Freelancer

    2,154
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    danbury, Connecticut
    Id consider a jeff bush designs 1g convertor, he has them on the shelf. Sinister has a very long wait time currently...... last time I checked anyway. My spoolinator failed in 2 months and had to pay 400 to have it fixed so
     

    Street Build 3K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  7. GSX_Dan

    GSX_Dan Proven Member

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    Chicago, Illinois
    How does one get a hold of JB?
     
  8. Boomdeeze

    Boomdeeze Proven Member

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    Independence, Minnesota
    Mine also failed in less than 3,000 miles and had to pay the same amount to get it repaired.

    OP- Do yourself a favor and get a JB converter if you can't find the Precision.
     

    Street Build 4K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
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  9. GSX_Dan

    GSX_Dan Proven Member

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    Chicago, Illinois
    What exactly is failing or what are the symptoms when these Sinister are breaking?
     
  10. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    Independence, Kansas
    I am wondering too.......
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    419  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    415  17

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 592  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  11. Boomdeeze

    Boomdeeze Proven Member

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    Independence, Minnesota
    My stator failed which is the only aluminum piece in there. It started to eat itself so I had aluminum shaving sent through the trans.

    I since then swapped to the Precision spragless converter.

    Sinister told me it can happen with higher horsepower cars with the added stress/pressure on the aluminum stator. You can do the option of going spragless which is said to add more heat. I have been running the spragless PI on the street and don't have any issues with heat but I also run two transmission coolers.
     
    Last edited: May 16, 2019

    Street Build 4K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
    Loading...
  12. 1990TSIAWDTALON

    1990TSIAWDTALON Moderator

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    Independence, Kansas
    Leaves us 1g guys in a pickle then, huh?
    @amsrn13, do you have any clue as to what a JB unit goes for? Is that what you have went to for your purposes?
     

    Street Build 3K  27

    1992 Eagle Talon TSi AWD
    awd · automatic · 1G DSM

    419  14

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM

    415  17

    1967 Chevrolet Camaro RS
    rwd · automatic · Misc Vehicles

    Street Build 592  4

    1998 Eagle Talon TSi
    fwd · manual · 2G DSM

    Street Build 5K  11  25

    1990 Eagle Talon TSi AWD
    13.620 @ 108.460 · 1G DSM
    Loading...
  13. Boomdeeze

    Boomdeeze Proven Member

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    Independence, Minnesota
    Kiggly was the one who talked me in to going spragless at the shootout and runs that exact setup in his car.
     

    Street Build 4K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
    Loading...
  14. SasaniFab

    SasaniFab Freelancer

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    Sorry boys.... here yah go 1350 shipped , jncludes a billet adaptor plate .
     

    Attached Files:

    Street Build 3K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  15. brian9397gsx

    brian9397gsx Proven Member

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    sioux city, Iowa
    Does Jeff Bush have a site ? I haven't found any for him, I've checked his Facebook page but can't seem to find anything on his products.
     
    brian9397gsx

    2K  0

    1993 Mitsubishi Eclipse GSX
    awd · automatic · 1G DSM
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  16. ThunderChild

    ThunderChild Supporting VIP

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    Rathdrum, Idaho
    I believe you have to message him, kinda odd for someone running really good parts, he'd sell alot more if he had an actual site. But whatever works for him
     

    Street Build 235  3

    1990 Plymouth Laser N/T
    fwd · manual · 1G DSM

    324  8

    1987 Toyota Pickup/Hilux
    awd · manual · Misc Vehicles

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    1997 Mitsubishi Eclipse Spyder GST
    fwd · manual · 2G DSM

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    1992 Eagle Talon TSi AWD
    manual · 1G DSM

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    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  17. SasaniFab

    SasaniFab Freelancer

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    Yes guys you message him..... he’s an awesome dude. He doesn’t need a site. Parts are so good you go to him.
     

    Street Build 3K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  18. brian9397gsx

    brian9397gsx Proven Member

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    sioux city, Iowa
    Nice I was more interested in reading up on the kit first just to get an idea of what it's all about. I probably won't be swapping converters till next year after I get to that point.
     
    brian9397gsx

    2K  0

    1993 Mitsubishi Eclipse GSX
    awd · automatic · 1G DSM
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  19. brian9397gsx

    brian9397gsx Proven Member

    1,153
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    sioux city, Iowa
    Well never mind w4a33.com has a great article about his kit. When I change converters that's the route I'll be going. I'd rather not gamble on the sinister seems like the first time you have an issue your right to the price of a j Bush unit.
     
    brian9397gsx

    2K  0

    1993 Mitsubishi Eclipse GSX
    awd · automatic · 1G DSM
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    1990TSIAWDTALON likes this.
  20. GSX_Dan

    GSX_Dan Proven Member

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    Chicago, Illinois
    I messaged him 5 days ago on FB and waiting patiently... Bradco is giving me the same treatment... Great products / great guys who won't take my $$$
     
  21. GSX_Dan

    GSX_Dan Proven Member

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    Chicago, Illinois
    What about the 300m 1/2" longer intermediate shaft? I thought it leaks without it?
     
  22. GSX_Dan

    GSX_Dan Proven Member

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    Joined Jun 27, 2004
    Chicago, Illinois
    Is it a #6?
     
  23. Boomdeeze

    Boomdeeze Proven Member

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    Independence, Minnesota
    Mine does have a small transmission leak from that seal which the JB intermediate shaft is said to fix. It is such a small leak that I haven't convinced myself to pony up the $400 to buy the shaft, it's on the list haha

    I don't know what "#" it is, I called up precision and told them I wanted a 4,400 stall without using nitrous and they built it. Just give them a call, they will go over everything with you on the phone.
     

    Street Build 4K  1

    1997 Mitsubishi Eclipse GSX
    10.793 @ 128.98 · 2G DSM
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  24. SasaniFab

    SasaniFab Freelancer

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    danbury, Connecticut
    Guys I contacted jeff, he’s open for business. Please message him with any inquiries.
     

    Street Build 3K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
    Loading...
    GSX_Dan likes this.
  25. GSX_Dan

    GSX_Dan Proven Member

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    Chicago, Illinois
    Yes we have contact!! Thank you.
     

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