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GT2 Pro Builder Info

By RogsR34UK

For more up to date information go to Rogs site

RogsR34UK@dial.pipex.com

I am leaving this information just the way I received it, so some of it may read like the letter sent to me. I will not be answering any questions about this page. If you do not understand the information then you may be a little to far ahead of yourself for now.  Experience will come the amount of time you spend building hybrids.  RogsR34UK can answer any questions that apply to this info.  Until he no longer wants  to be bothered with it.  So please do not abuse him, keep it to Pro type questions. This  information is mainly for Pro builders . 

Thank-you james1058

Sorry if it is a bit disjointed, it comes from quite a few Emails. Hope it is of help.

 On the Horsepower field, one car briefly threw me: 
the Suzuki Cultus Pikes Peak Edition
It had 788 (or thereabouts) HP. I looked at my figures and
 thought - it's between 720 and 791 so add 11. Wrong it passes 791 when you
 add the number so it goes up into the next grouping and adds 12. Basically
 it works out as
 Horsepower figure = (1.014 * Real Horsepower) + 1
 Ignoring decimals
 The Drivetrain is:
 0 FR
2 FF
   4 4WD
 6 MR
 8 RR
 Adjust the Drivetrain or power to enter any race in GT mode.
 As I filled my memory card in GT Mode I set all the values to zero and
saved the game to a spare memory card.
 I have some Action Replay codes to do that
 Checked it and then set car count to zero on the current game to clear
 the garage. Went to trade and imported a few immediately useful cars for
 nothing. Effectively gives me an infinite garage 
 (if I had enough memory cards :)
Unfortunately they are PAL addresses, 
 but there should be no problem converting them.

 Here's something else

 I was messing about with Turbo codes and found one which effectively
removes the turbo (useless but still).
 I found it on the Mitsubishi EVI VI RS. As an
 example I was reading a car magazine and saw that there was a new
Mitsubishi over here - the Galant Sport.
 Which is Front wheel drive with the 2.5 V6 with
161hp in non-turbo form. I thought I would try to make it on GT2. Came to
 the engine (Galant VR-4 270HP) and applied the "non-turbo" code - 160HP
 (coincidence or what?) OK the torque was higher (180lb/ft compared to the
 real cars 164lb/ft but still). I have been making the BMW 5 series range.
 I'd get the 520, 523, correct 528, 540 and a pretend M5 (4.4 liter 400HP
 instead of the real cars 5.0 400HP). I thought what about the 535 (3.5 V8
 235HP). Thought, try the Lotus Esprit engine (3.5 V8 350HP). Put turbo (oh
 yes, you also have to fit the EVO VI Boost values as well) on and - close
 233HP!!!!! The code for the turbo is EA 03 and the Boost is 0A 41 46 00.
It  only works on Turbo engines.
 The Escudo with it managed 588HP.
 You can adjust the first 2 parts of the boost gauge to get less power
 (useless or what). I got an Escudo engine down to 142HP (stock HP) 
(could of gone lower)

 Here is the Tuner list

       00 Acura
                01 Alfa Romeo
                 02 Aston Martin
     03 Audi
      04 BMW
           05 Chevrolet
       06 Citroen
         07 Daihatsu
     08 Dodge
 09 Fiat
  0A Ford
    0B Honda
    0D Jaguar
    0E Lancia
   10 Lister
   11 Lotus
    12 Mazda
         13 Mercedes
            15 Mini & MG
         16 Mitsubishi
    17 Nissan
 18 Opel
      19 Peugeot
         1A Plymouth
      1B Renault
  1C RUF
     1D Shelby
     1E Subaru
     1F Suzuki
            20 Tommykaira
    21 Toyota
 22 TVR
      23 Vauxhall
   24 Vector
    25 Venturi
           26 Volkswagon

 Which raises an interesting question, there are 36 manufacturers there,
but 0C and 14 are missing. 
Have I missed anyone? It must be the only
 It must be the only sequential part of GT2

 Being UK based I decided to get the Opels (we have the Vauxhalls here).
Same thing happened. Vauxhall has a Tuner code or 23
 and Opel (from memory -mine!!) 18.
Changed the code and modified the cars. The Opels even had a
 different range of colors!  I put the Honda code on a Nissan and did all
 the Nissan upgrades at the Honda Tuning shop.
Another code position is the last 2 in the garage 
 (D05A and D05B in your chart). 
 These show how clean your car is (pretty useless I suppose but
 still.....). I set it to FF FF with a black car and it was matt black.
Made no difference in Arcade of course.
 The boost gauge code is in D014 to D017 in your chart.
  This differs from car to car and also stage of tuning.
All turbo cars have (effectively) a Stage 0 code 
Which also has to be present with the boost gauge code for it to appear.
Which  means you can have a naturally aspirated car with a boost gauge using
the relevant codes. 
 Interestingly I had a Stage 0 on a car (EVO VI engine I  think)
 and I put it on a another type of car (different manufacturer) and
 the Stage 0 gave me 70 HP extra. Does this mean that the same Tuning code
 would give different increases at different manufacturers? I will do some
 further investigation 

Here is a chart, may help explain a little

Original Values FOR SKYLINE GT-R PAL addressing-  

_____________________________________________________________

I also did this: 

 I investigated the Race Mod last night.
To say it was frustrating would be something of an understatement!
I made cars with Race Mods and a stock version for comparison.
 I copied down the contents of memory. 
 I bought other cars. I have come to the conclusion
 Digital Polyphony have tried to make it as awkward as possible and almost
 succeeded!!! I managed to use a BMW 323 Ci with full weight reduction and
 race modification in the Manufacturers 3 Series race (for normal cars
 only!!!!!). If you go into the Race and then Exit immediately, I used the
 Action Replay Pro to edit memory to add the race modification it let me
 straight in. That was the frustrating part, you have to come completely
out of the Event.    I have not checked how far admittedly,
  I usually went back to the garage when I found out to change specifications.
 I kept changing things at the screen where you start the race 
 and was wondering why everything I did had no effect.
If you wanted to completely overtype your
 current car, you could use any car in the event presumably.

 What did I find? There is an area of the first garage slot at 1CD5AC (PAL)
 between Weight Reduction and Port/Polish. This code is what it checks for
 the Race Modification. I had a fully modified Mitsubishi EVO IV (with the
 Rally Car body - looks the same as the Race Mode, but says Rally Car on
the replays) and put in the code 23 02 (not reversed) from the unmodified EVO
IV and took the fully modified car into the Manufacturers event (normal cars
 only) with no problem. The code I think has to be valid for the car you
are using, just to make life tricky. When I have a few hours to spare I will
 draw up a list of standard codes for all the cars used in the Normal
 Manufacturers races (where the car can be Race Modified). Those are the
only ones I need to do so it shouldn't be a huge task. Maybe another day.

 Here is what I found on the Race Mod code.

 I listed all the relevant Race Mod codes for the North, West and South
 Manufacturers challenge cars (the only ones of any use as far as I can
see). It took about 2 hours. I found the quickest way was buy the car, go to
 tuning and look at the memory for the standard code and reset the car
 counter to zero - it will still allow you to modify the car though!!! Buy
 the weight reductions and the Race Mod and look at memory again. The Golf,
 Clio Sport and Fiat 500 (Cinquecento) were a pain because they had the
 "Change Type" button available - I had never noticed that before!!!! I had
 to zeroise the Race Mod Flags and reset the body to make the next Race Mod
 on the car. The exercise highlighted another "bug". By some miracle of
 modern science (!!!!!!!!!!!) if you Race Modify the Neon 4 door it
becomes a 2 door Coupe Racer!!!! Here are the first set of codes. More to follow
 after the weekend - East will be something of a nightmare. And I will need
 to recheck that first VW at least.

List shows Normal code, the Race Mod code and the car. 
 Codes are not reversed.

  8E 01__8D 01__Alfa 155
       90 01__8F 01__Alfa 156 2.0
       8B 01__8C 01__Alfa 156 2.5
        B4 00__B5 00__Citroen Saxo
                    9C 01__9B 01__Fiat 500 Cinquecento
          _______9A 01__First Alternative
  A2 01__A1 01__Fiat 500R
                                         A6 01 ________Lancia Delta Integrale (No Race Mod)
                                       A5 01_________Lancia Delta Integrale Collezione (No Race Mod)
                                    A8 01__A7 01__Lancia Delta Integrale Evoluzione
               B9 00__B8 00__Peugeot 106 Rallye
           BA 00__BB 00__Peugeot 106 S16
                     CC 00__CB 00__Renault Clio Sport 24V
          _______CA 00__First Alternative
               CF 01__CE 01__Aston Martin DB7
                             D1 01__D0 01__Aston Martin DB7 Volante  
 DE 00__DD 00__Audi TT
       E0 00__DF 00__BMW 320Ci
       E6 00__E7 00__BMW 323Ci
       E8 00__E9 00__BMW 328Ci
               C0 01__BF 01__Lotus Elan S2 '64
                B4 01_________Lotus Elan S2 '90
                   C2 01__C1 01__Lotus Elan S4 Sprint
             AE 01__AF 01__Lotus Elise 111S
           B2 01__B3 01__Lotus Elise 190
    B6 01__B5 01__Lotus Elise
          B1 01__B0 01__Lotus Elise 135
                       BE 01________Lotus Elise Motor Sport
                  F0 00__F1 00__Mercedes Benz SLK
          66 00__67 00__MGF 1.8 VVC
 6B 00__6C 00__Mini 1.3i
              69 00__6A 00__Mini Cooper 1.3i
                    08 04__09 04__TVR Tuscan Speed 6
          7B 00__7A 00__Vauxhall Tigra
      FE 00__FD 00__Golf IV V5
            _______FC 00__First Alternative
                 _______FB 00__Second Alternative
          07 01__08 01__Golf IV GTi
             _______0A 01__First Alternative
                  _______09 01__Second Alternative
                  06 01__05 01__Golf IV GTi 1.8T
             _______04 01__First Alternative
                  _______03 01__Second Alternative
         02 01__00 01__Golf IV V6
            _______FF 00__First Alternative
                  _______01 01__Second Alternative
                     0F 01__0E 01__New Beetle 2.0 GLS
                      82 00__83 00__Corvette Stingray '67
                      80 00__81 00__Corvette Stingray '69
                      87 00__86 00__Corvette Stingray '82
                  90 00__91 00__Corvette ZR-1 '95
        8B 00__8A 00__Corvette '96
                           8D 00__8C 00__Corvette Grand Sport '96
      9B 00__9A 00__Neon ACR
    9C 00__9D 00__Neon R/T
    A6 00__A6 00__Viper R/T
      A4 00__A3 00__Viper GTS
 AD 00__AE 00__Ford Ka

         I will be trying to list all the cars before doing East. At some point it
 may be worth doing all the cars, but that would be a mammoth task.
 My current project is the Toyota (yawn!!) Prius. My modified version is
good for nearly 220 Mph , hitting 200 Mph in about 20 seconds. It still has the
 original gearbox!!!
 I am currently putting all the body and engine codes in a Microsoft Access
 97 database, or at least they are there and need fine tuning for car names
 to match. I will need to check it when I have finished, 
but I am getting there.

 Minor point. If you set the dirt tires code you can take that car to the
 Dirt tracks. Unfortunately the BMW I took was not an unqualified success!

_____________________________________________________________

Jim

As I said this code could almost make hybrid building obsolete. Here's what I
sent to someone, with additions from last night's memory excursions!

I tried the challenge from www.granturismo.com - "worst to first". I did the
Test Course race - tuned turbo cars one. Loser was a TRD 2000GT. I decided
to copy the memory map for the car as used in the race. (thanks for the tip
on finding it - I did on the third attempt)

The map was, from the car code, the first line being at 801CCFB8 (V1.0) or
801CD588 (PAL) etc, this being the extent of the car information held for a
race:

98 33 0C 1E 31 00 00 00
00 01 00 00 8E 03 00 00
00 00 E8 01 E8 01 E8 01
E8 06 E0 06 2B 07 98 0E
98 0E 00 00 4C 03 00 00
00 00 00 00 00 00 00 00
CC 03 00 00 D7 06 00 00
00 00 00 00 00 00 00 00
0A 00 EC 00 FF FF FF FF
FF FF FF FF FF FF FF FF
FF FF FF FF BD 10 24 FF
0C 0C 0F 15 02 3C 82 00
00 00 00 00 64 64 80 80
10 18 5A 5A 01 01 01 01
01 01 01 01 01 01 00 07
00 1E 00 0F 01 01 65 54
05 BD 43 00 00 00 00 00
00 00 00 00 00 03 01 00

I figured with the challenge I would use an identical car to the one that
came last in the race. I presumed that as it was tuned the PSX would add
some codes. I looked and all the normal codes were either not there or were
standard. I won a TRD 2000 GT to use for the challenge. I thought no way do
I get to win with 266 HP. I typed in the changes. The gearbox area looks
strange, but it works for any car and gearbox (tried it on a Mini with some
arbitrary HP Multiplier and the 78 06 7 speed box code - worked perfectly
with no need to adjust any gear settings) except if you try to go to the
gearbox in settings it locks the PSX - had the same problem with the Prius -
must be the FF's. I tried the car with the above data. 360 Kph. I thought
that's impossible with 266 HP. Went back to the garage - 636 HP!!!!!!!! The
car also had soft slicks and a professional gearbox. I struck lucky first
time and discovered the EC 00 (Line 9) gave me the HP, in conjuction with
the 43 on line 17 (start with 43, I tried a higher figure on my MINI above
and the engine died until I lowered it), which I think also works in
conjunction with the final drive. Looks an easy way for any gearbox. I will
work out how to change the gearing tonight. Anyway, the multiplier using EC
00 as an example gives 236 decimal which gives a multiplier of 2.36. It is
not an exact science, it may be based on the HP figure at the end of the
slot (something else to confirm tonight). Anyway 2.36 multiplied by 266
(needs to be 269 actually to give the answer) gives us 636 HP. Put in FF FF
and it goes way over the top. On some cars it is very easy to wrap around
zero on HP and torque. Experiment - have fun??!! Usual hex problem of taking
the second bit first of course. Needless to say the worst to first challenge
with an exact copy of the computers car was a doddle other than the twitchy
MR handling. I hate going round the banked corners of the Test Course at
about 30 degrees to straight ahead.....in a race! So, the challenge is not
as straightforward as DB said, as you need to make a copy of the memory area
for the computer car that lost after the race.
The BD next to the 43 I think is to prevent a copy of the car being modified
as it overwrites that tuner code I mentioned. I don't think it is crucial to
the use of the multiplier though.

I did more investigating and the 43 is as good a code as any. If it is a
multiple of the original horsepower (of which more in a minute) the engine
dies! (as I said - mind blowing stuff!!!!0 (almost gave me a headache trying
to sort it out). To get a higher top speed the Final drive code has no
effect (!!!!!!!) and you need to increase what is effectively the auto setup
number (in this case 24 FF), only changing the 24. As the PSX will lock if
you try to change the gearbox settings all mods to suspension, downforce
etc. will have to be done in memory or with GS codes. I did try the gearing
set up on a different car, with no engine multiplier and it seemed to work
fine. It also needs the 43 code present.

On the horsepower if you put a multiplier of hex 0064 (64 00 in memory) which
of course is 100 giving a multiplier of 1.00 you get the original HP of the
car, whether that is stock, with standard options or, surprisingly (which is
why it doesn't completely kill off some of the hybrid activities) the
hybridised HP! I put the 1.00 on my CLK Racer (Merc 5.5 V8 with 1039 HP -
superb car) and the figure was 1039. Increase it to 1.01 (65 00) and it went
up to 1050 HP. It is not an exact science as a multiplier of 2.00 does not
give exactly twice the horsepower could be 1 or 2 out plus or minus. Still,
it is close enough for most purposes.

I suppose my next project will be to go through the cars in each race and
see what modifier they use.

I did the Grand Valley East MR Race and found the following modifiers:

MGF 89 00
Stratos 67 00
Elise 111S 8A 00
MR2 Spider 8F 00
MR2 G-L '98 64 00 (Surprisingly)
Europa 9C 00
MR2 G-L '86 8F 00

All with Sports tyres. I tried a similarly modified '86 MR2 (195 HP) and
could only just keep up with the pack, let alone win. I did the race in a
Tommykaira and edited the body codes so that it looked as if the race was
with 6 identical cars. Pointless, but fun!! I will have to pass on the
addresses of the six cars in the race (PAL I am afraid but should be
convertible) but I didn't think to bring them with me

_____________________________________________________________