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1G Gsc s1 vs Gsc s2? Should i go up?

Posted by amsrn13, Apr 8, 2017

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  1. amsrn13

    amsrn13 Proven Member

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    I was gunna say f*** it and send my 92 to jacks for their drag tranny.... which cost like 3800 bucks. For 5800 I can have the ppg box , 700 to Install
     

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  2. amsrn13

    amsrn13 Proven Member

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    danbury, Connecticut
    Grenadin a 3800 dollar transmission ..... the thought makes me sick
     

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  3. donniekak

    donniekak DSM Wiseman

    4,547
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    Surprise, Arizona
    The 1g transmissions are the strongest, with the 90 gear set being the strongest of those. The 93+ transmissions are pretty much all the same in terms of strength.
     

    Street Build 3K  0

    1991 Eagle Talon TSi AWD
    manual · 1G DSM
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  4. amsrn13

    amsrn13 Proven Member

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    Ic .... maybe I will go pick that transmission up then
     

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  5. Geeb

    Geeb Proven Member

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    Joined Apr 6, 2016
    Philadelphia, Pennsylvania
    1990 transmissions do have the strongest gearset stock, but most upgrades don't work in the 1990 gearset, like you can't put in double synchros and stuff, pm twicks69 (Tim Zimmer of tmz transmissions) he's the most helpful guy when it comes to picking peoples brains esp about transmissions... I have a 90 and he was telling me all about the who what when where why's about the stuff you can and can't do to them.

    But, that being said... Yeah they're the best if you're keeping it stock.
     

    Drag Race Build 2K  0

    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  6. Vegas smith

    Vegas smith Proven Member

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    Houston, Texas
    $600 for a 90 with transfer case? I could barely sell two 90 transmissions for $250 (for both) and I tried multiple times....
     

    Street Build 2K  10

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  7. amsrn13

    amsrn13 Proven Member

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    Well sh**...... there is literally no dsm sh** around here
     

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  8. Geeb

    Geeb Proven Member

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    Philadelphia, Pennsylvania
    Where u located I'm gonna b selling my stock 1 when I get this built one soon as he gets it outta the car
     

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  9. donniekak

    donniekak DSM Wiseman

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    Surprise, Arizona
    All of the "upgrades" to a 1990 trans will be weaker stock parts. They may shift better, but break sooner. It comes down to all "built" dsm transmissions outside of a par or ppg are stock parts.
    The strongest best shifting option is getting the early 1g gears faceplated by liberty. Tim has this as an option I believe.
     

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    1991 Eagle Talon TSi AWD
    manual · 1G DSM
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  10. Geeb

    Geeb Proven Member

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    Philadelphia, Pennsylvania
    I really just want double synchros so I can go up to 9000 but ur right since it would be replacement and not the stock welded part in the gearsets, it would be weaker... But I am going to disassemble it and send the gearsets and all over to tre for their shot peening service..
     

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  11. amsrn13

    amsrn13 Proven Member

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    I'm in ct, my car is a 92.... luckily the 6 bolt/4bolt lsd...... Ive been in contact with par, looks like I'm going with them instead of ppg
     

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  12. Geeb

    Geeb Proven Member

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    Philadelphia, Pennsylvania
    I'm in phila pa But you think a 1990 with shotpeened gearsets and a welded center or 4spider would be better then a rebuilt double synchro 90 trans... Or should I still get the rebuilt D.S one and eventually just get those sets shot peened
     

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  13. Geeb

    Geeb Proven Member

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    The rebuilt one has a welded center with 0 miles brand new rebuild, and is real cheap..
     

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  14. Geeb

    Geeb Proven Member

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    Philadelphia, Pennsylvania
    I'm basicAlly wondering now if I should keep my 90 and redo that with dif shot peened parts and throw a center diff in either get mine welded or turned into a 4sp or buy this d.s one (1990, 0mi rebuilt, welded center) and keep that how it is and sell mine, and eventually build that one a bit further so it lasts... Ahh decisions decisions...
     

    Drag Race Build 2K  0

    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  15. lasthope05

    lasthope05 Proven Member

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    If you decide to sell you're trans in the future, I might be interested as long as it shifts well. I could always use a spare trans. Im local too. Lol.
     
  16. Geeb

    Geeb Proven Member

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    couldnt we all when it comes to these glass boxes LOL okay I'll keep u in mind.
     

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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  17. amsrn13

    amsrn13 Proven Member

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    Fastest cam swap too date..... even manAged to ship out the s1s out to a member before FedEx closed
     

    Attached Files:

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  18. gsxeclipse102

    gsxeclipse102 Proven Member

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    S2's?
     

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    1991 Eagle Talon TSi AWD
    manual · 1G DSM
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  19. amsrn13

    amsrn13 Proven Member

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    danbury, Connecticut
    Yes sir re
     

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  20. amsrn13

    amsrn13 Proven Member

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    Haven't taken the car out for a spin yet..... had a wiring issue last night I had to figure out. Hopefully tonight.
     

    Street Build 2K  20

    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  21. GST with PSI

    GST with PSI DSM Wiseman

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    San Diego, California
    You gotta do some math.

    Start by looking at your FIC data sheet. I'll use my car/sheet for the example. Here's the specs for my 1650s:
    sfwnw0zxqw-pnniqytncck3tvhmedbh5b-p7la-jz8sjpjxi1zdp5vin48jckszvdv5-kww-w1218-h685-no-jpg.318613.jpg

    First thing you do is pick the column of voltages closest to your base fuel pressure. It's easiest if you're running 43.5psi of base fuel pressure, so there's less math involved. If you're like me and running a base fuel pressure somewhere in the middle of the two, you'll need to do some math to get approximate values for that pressure. For example, I'm running 50psi base fuel pressure. Since that's fairly close to being right between 43.5 and 58, I simply added the 2 values together, and divided by two. It's an approximation, but should be close enough.

    So looking at the values in the 8v row:

    2.70 + 3.67 = 6.37

    6.37 / 2 = 3.185

    3.185 is the approximate value I'll use at the 8v mark with a 50psi base fuel pressure. Do this for each row until you have a complete list of approximate values for each voltage level. Using the math above, my values came out to be the following:

    08v 3.185
    10v 1.945
    12v 1.400
    14v 1.085
    16v 0.840

    If you are at 43.5psi, you'd just use what's in the table for your FIC data sheet, and ignore the math above.

    Second, since ECMlink's voltage table doesn't line up with the voltages given to you on your injector data sheet, you need to do some more math.

    ECMlink's voltage table goes like this:

    07v
    09v
    12v
    14v
    16v
    19v

    We need to figure out what our voltages are for 7v, 9v and 19v since they aren't given in the FIC data sheet.

    To get the 9v value, I simply find the average between the 8v and 10v values. So:

    08v 3.185
    10v 1.945

    3.185 + 1.945 = 5.13
    5.13 / 2 = 2.565

    2.565 would be my 9v value.

    To get the 7v value, I simply add around 20% to the 9v value. So:

    2.565 x 0.20 = 0.513
    0.513 + 2.565 = 3.078. I rounded this to 3.100 on my car.

    So, using all of the math above, my final list of values are:

    07v 3.100
    09v 2.565
    12v 1.470
    14v 1.085
    16v 0.840
    19v 0.450

    I leave the 19v value stock, since you should a) never see 19v and b) your car is probably on fire or running like complete crap at that point anyways.

    When you plug the values into ECMlink, simply drop the decimal point.

    There's probably a much more mathematically correct way of doing this, since most of what I'm doing assumes linear increases/decreases between voltages, which certainly isn't the case. However, I've found on my personal cars this method works awesome, and is fairly straight forward to follow and figure out. The idea is to use the DA InjBatteryAdj table to get the injectors in the ball park, and then tweak them via Global deadtime in the fuel tab. My car is pretty heavily modded, and it idles like stock on 1650s + cams, so I can at least attest to this method working on one car ;)

    http://www.dsmtuners.com/threads/gstwithpsis-galant-vr4-1837-2000.482807/page-12#post-153630252
     
    Last edited: Apr 16, 2017

    Street Build 4K  74

    1992 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4

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    1991 Mitsubishi Galant VR-4
    12.030 @ 119.39 · Galant VR-4
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  22. amsrn13

    amsrn13 Proven Member

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    You sir are the man :thumb:
     

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    1992 Eagle Talon TSi
    645 whp · 498 lb/ft · 1G DSM
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  23. GST with PSI

    GST with PSI DSM Wiseman

    1,740
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    Joined Jul 27, 2005
    San Diego, California
    Prove it:

    upload_2017-4-16_14-32-11.png
     

    Street Build 4K  74

    1992 Mitsubishi Galant VR-4
    awd · manual · Galant VR-4

    Street Build 21K  15  137

    1991 Mitsubishi Galant VR-4
    12.030 @ 119.39 · Galant VR-4
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  24. iugrad92turbo

    iugrad92turbo Proven Member

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    Kalamazoo, Michigan
    I got my 90 fear,set shot peened should hold up to my goals . Haven't gotten on her her but looking forward to shifting faster this summer at the track.
     

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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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  25. Geeb

    Geeb Proven Member

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    Philadelphia, Pennsylvania
    What are your goals?

    And who did you send them to? Jon (tre)? Or Tim(tmz)? Or who...?
     

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    1990 Eagle Talon TSi AWD
    manual · 1G DSM
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