Gearbox Changing

Discussion in 'Gran Turismo 2' started by michaelchan21, Jan 24, 2017.

  1. michaelchan21

    michaelchan21

    Messages:
    32
    How to change a 5-speed gearbox to a 6-speed one. I have looked for the solutions from quite a number of sites including the Hybrid ones but without goal. Anyone who has the knowhow please instruct me or refer me to where I could find a clear answer to it. Thank you!
     
  2. JakeMR2

    JakeMR2

    Messages:
    1,055
    Actually that is easy, think of it as a GT3 hybrid, collect your values easy with the Dev Mode on the Windows calculator, say you want a sixth gear, but the fifth gear ratio is 0980 in decimal. You will need the transmission codes to do this, please refer to this site here for the base codes. It's VERY useful.

    Site: http://pupik-gt2.tripod.com/

    I can give you the bases if you want, but here they are.

    VERSION 1.2 Hybrid Gearing Codes (NTSC U/C)

    1st Gear
    801cd59e XXXX

    2nd Gear

    801cd5a0 XXXX

    3rd Gear

    801cd5a2 XXXX

    4th Gear

    801cd5a4 XXXX

    5th Gear

    801cd5a6 XXXX

    6th Gear

    801cd5a8 XXXX

    7th Gear

    801cd5aa XXXX

    Final Drive

    801cd5ac XXXX

    Thanks at @Pupik

    These are going to alter 4 bytes to the memory of your first car of your garage, and nothing else. Be wary on how you use it, and also your calculations are important.
     
  3. michaelchan21

    michaelchan21

    Messages:
    32
    Thanks! I have tried this before but first in the setting screen it doesn't show all the 7 gears and final drive. It's still the standard five. The second thing is if it does how to calculate each of the gear numbers - the xxxx thing. The xxxx are not actual numbers which really puzzles me.
     
  4. JakeMR2

    JakeMR2

    Messages:
    1,055
    Those are the altering hex bytes. You just need to do a simple number decimal to hex. It's relatively easy to understand to do and on how it works, just don't alter your settings.
     
  5. michaelchan21

    michaelchan21

    Messages:
    32
    Thanks Jake, the decimal part is ok. But still I don't see the 6th & 7th gear. Why?
     
  6. JakeMR2

    JakeMR2

    Messages:
    1,055
    I don't think you can see it via Car Settings, but it should affect the car quite a lot.
     
  7. michaelchan21

    michaelchan21

    Messages:
    32
    I did it at last and it seems I have made a completely new 6-speed gearbox. I don't know if my making was exactly right yet it is working so good. The lap time had been reduced by a second using the same car at the same track.
     
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  8. submaniac93

    submaniac93

    Messages:
    1,196
    Location:
    France
    That's for PAL unfortunately so I don't think that will work for you (values should though, just not the base code).

    The only way I know of to get the 7-speed is to change the car's name to the Subaru Pleo, buy it's 7-spd transmission, revert to your car's original name, then set it using the codes below)
    I've never found a value that worked for the 7-speed on PAL :/ Although 6 is way more than enough for this game's physics :p

    "Transmission
    801cd5a0 ????
    &Choice
    $00F4 6 speed
    $0841 4 speed

    This used with the PAL version of the gear ratio modifiers (because when making hybrids, going into the settings menu will revert to original, so if you want to mod the added gears, you have to use this):

    "Reverse
    801cd5cc ????
    ?0000-FFFF
    "1ERE
    801cd5ce ????
    ?0000-FFFF
    "2NDE
    801cd5d0 ????
    ?0000-FFFF
    "3EME
    801cd5d2 ????
    ?0000-FFFF
    "4EME
    801cd5d4 ????
    ?0000-FFFF
    "5EME
    801cd5d6 ????
    ?0000-FFFF
    "6EME
    801cd5d8 ????
    ?0000-FFFF
    "7EME
    801cd5da ????
    ?0000-FFFF
    "FINALE
    801cd5dc ????
    ?0000-FFFF
    "AUTO.
    801cd5de ????
    ?0000-FFFF
     
  9. JakeMR2

    JakeMR2

    Messages:
    1,055
    Pupik's website codes worked for me though, it would be recommended to use that site for hybrids. I have yet to make a super hyper car with these codes.

    But I guess, I can test them once I get home.
     
  10. submaniac93

    submaniac93

    Messages:
    1,196
    Location:
    France
    Yup. Pupik's probably the best site around left for examples and values. I even made a full save of his GT2 and GT1 pages on my computer a few years ago.
     
  11. JakeMR2

    JakeMR2

    Messages:
    1,055
    I haven't tried GT1 hybriding yet, but every time I search for hybrid codes for the game it's just hard to search through Google's pages to find a resource sadly.
     
  12. submaniac93

    submaniac93

    Messages:
    1,196
    Location:
    France
    True. There was a site a while back that had quite a few good codes I think for GT1, but it's now dead. However thanks to the internet archive you can still find it: https://web.archive.org/web/20060220130306/http://gthybridcars.www5.50megs.com/gt1_basecodes.htm

    Avast thinks it's a virus though, so you may get an alert with it.

    EDIT: one thing to note: I've never found/nobody ever made a code to change drivetrain or swap engines :C and I don't have the hacking skills to look for anything more complicated than a "choose what lap you start on" or a money modifier...

    EncounterGTR recently made a code for me that fixes the miscoding of 4 cars that are supposed to be 4WD but handle as FWD, it doesn't change the actual drivetrain of the car though.
     
    Last edited: Jan 31, 2017
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  13. michaelchan21

    michaelchan21

    Messages:
    32
    I can make a 7-speed gearbox to all the cars I modify for GT1 v1.1. You don't have to change the name of the car. This is what I use :-

    "1st car mod\Turbo
    8009BAC8 00F5
    "1st car mod\Suspension
    8009BAC4 017B
    "1st car mod\Tires
    8009BAC6 040C
    "1st car mod\Transmission
    8009BAB0 0196

    Gears
    1st 2.785
    2nd 1.950
    3rd 1.407
    4th 1.031
    5th 0.853
    6th 0.690
    7th 0.598
    Final 4.679

    Always use close ratio through the 1st to 7th gears but a lower gear for the Final Drive. This will make the car go faster.

    BTW, submaniac, I just heard you mentioned about EncounterGTR. He posted the autopilot code for the GT1 Japanese version some time ago but it doesn't work for me. Do you know where I can find the J codes?
     
  14. submaniac93

    submaniac93

    Messages:
    1,196
    Location:
    France
    I thought we were talking about GT2? lol

    Yes, in GT1 you can apply a 7-speed with a code and the way the game works, unlike GT2, you can actually set it directly in the settings menu (hybrids don't reset in the settings menu on GT1).
    For GT2, if you have (like apparently you do :) ) a code that puts a 7-speed onto your car yeah, you can simply set it. Actually... let me see if your value works on PAL.

    As for your question, I don't have any good sources, because I haven't tinkered with GT1 J much. Apart from a playthrough a week or 2 ago. But this should help you hopefully. You better make use of a translator though, unless you can read German or Dutch... I don't know which one it is. http://gamehacking.org/game/94768

    If you want to make hybrids though, the page I linked above via the web archive seems to have the codes for every region of the game.

    I'm actually thinking about saving them before they get lost forever.

    EDIT: Welp, 0196 for the transmission code doesn't work on PAL *sadness*. Bah, I don't really need it. Worth a try :p
     
  15. michaelchan21

    michaelchan21

    Messages:
    32
    Thanks, submaniac, I read roughly that page weeks ago. It seems it doesn't have a code regarding autopilot. I'll read it again in a more thorough way this time.
     
  16. submaniac93

    submaniac93

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    1,196
    Location:
    France
    No probs sorry I can't help more than that x)
     
  17. michaelchan21

    michaelchan21

    Messages:
    32
    submaniac, this is the gears for GT2 US version 94455-94488

    "1st car mod\7-speed gearbox
    801CD570 0669
    801CD59E 0AE1
    801CD5A0 0776
    801CD5A2 057D
    801CD5A4 0426
    801CD5A6 034B
    801CD5A8 02B3
    801CD5AA 0248
    801CD5AC 1393

    I believe it work for PAL also.
     
  18. submaniac93

    submaniac93

    Messages:
    1,196
    Location:
    France
    Oh don't worry I don't need the ratio modifier. It's the actual upgrade/part that i'm missing. Thanks anyway ^^
     
  19. michaelchan21

    michaelchan21

    Messages:
    32
    O.K. If you don't mind telling me what upgrade part you're missing, may be I'll try looking it up for you.

    Good news to me, submaniac, thanks to EncounterGTR, his autopilot code for GT1 JP version works perfectly only that I had to use auto transmission mode...that simple.
     
  20. michaelchan21

    michaelchan21

    Messages:
    32
    submaniac93, the 7-speed gearbox for GT2 US version I posted here in 2017 was something I totally forgot. I'm trying to convert it to JP version, yet all the info I have for the conversion are no use. Do you have the JP version of the said gearbox? Thanks.

    Another thing is I don't like the autopilot of the US version since during the reply I have to stick to my own car. If I change to either of the AI car my own car will go off the track and whole reply will no longer complete. I hope you know what I mean.
     
    Last edited: Apr 19, 2020
  21. submaniac93

    submaniac93

    Messages:
    1,196
    Location:
    France
    The autopilot issue is because the buttons mapped to enable/disable it are up/down, which are also the buttons used to move to an other car. The inputs that aren't 0001 and 0000 parts of the code are the button input. Find a joker command chart and you can edit what does what. Also keep in mind that unless you enable the AI driving at the exact same moment you did in-game, your replays will always be slightly different from your actual gameplay.

    And i don't have the jp gearbox code. I assume the value will be the same or nearby since the amount of cars didn't change too much but yeah.
     
  22. michaelchan21

    michaelchan21

    Messages:
    32

    Thank you for your reply. You know after three years I have forgotten how to build a 7-speed gearbox completely not even the US one that I did before.
    The US version I did is working fine. Well let's forget about the gearbox now.

    I did checked the codes of the autopilot between US and JP versions these few days but I didn't know how to do with them. As you just gave me hints regarding the mapping of the buttons, I will try to fix the US version to see whether it could work like the JP ones. Thank you once again for all you did.


    submaniac93, I did it. Just change one of the values of the us version to the JP version's. That's it.
     
    Last edited: Apr 19, 2020