Your forum for world-wide discussions about Grand Prix 4.
Re: The Michele Alboreto Challenge - a 1987 mod - Today
Man this is the best GP4 video I saw !!!! The quality of the work looks amazing!!! When do you think it will be ready? Congrats again!!!by jcgrj - Grand Prix 4
Re: F1 1994 Barcelona Track new chicane and cc-line - Yesterday
Hi Turbo!!! It works!!! Thanks a lot man!!! Another problem solved to 94!!!! I will check the cc-line and post the fix soon!!!by jcgrj - Grand Prix 4
Re: F1 1994 Barcelona Track new chicane and cc-line - Yesterday
Hi Turbo thanks!!! I will try that.by jcgrj - Grand Prix 4
Re: Track-Packs 1988-1991-1993-1994-1995-1997-1999 [RELEASED] - 9 days ago
I can help with cc-line but no time now. Maybe after 25 jan I can take a look.by jcgrj - Grand Prix 4
Re: jcjrg your inbox is full :-) - 10 days ago
Hi I cleaned today try again!!! Sorry about that didnt notice there were so many messages!!!!by jcgrj - Grand Prix 4
Re: The Michele Alboreto Challenge - a 1987 mod - 10 days ago
Im eager to have access to thisby jcgrj - Grand Prix 4
Re: F1 1994 Barcelona Track new chicane and cc-line - 16 days ago
Hi Turbo The thrack is available in the trackpack of 94 from GAP at Fongu blog!!!by jcgrj - Grand Prix 4
Re: F1 1994 Barcelona Track new chicane and cc-line - 17 days ago
Thanks guys!! I'm working now on Aida that have a ghost effect in the last corner before the race start straight. It's another thing that I think need to be repaired. I'm doing this to myselft, it's not a great problem but if you guys want I can share it too!!!! To the track masters, any idea why is this happening? I took a look in the dat and did not see anything wroby jcgrj - Grand Prix 4
Re: Introducing: GP4 Memory Access (by Carl_gpgames, Öggo and ZaZ) [v1.0.1 released 2024/12/22] - 18 days ago
Thanks Carl!!!by jcgrj - Grand Prix 4
F1 1994 Barcelona Track new chicane and cc-line - 18 days ago
Hi Guys I'm testing some new sounds to this wonderful mod for F1 1994 ( thanks again Fongu ). I notice that the cars have a strange behaviour on the Barcelona chicane ( the one implemented to increase safety after Senna's death at imola ). The track is great and thanks for the Hi res update by Gap177 but to improve the imersion I change the chicane and also the cc-line to make the cby jcgrj - Grand Prix 4
Re: Introducing: GP4 Memory Access (by Carl_gpgames, Öggo and ZaZ) [v1.0.1 released 2024/12/22] - 21 days ago
Hi Carl and Oggo, Im trying to run GMA but Im getting a strange message: "Im sorry but the AI has determined that you do not have permission to use this program" Any idea why is this happening? Any kind of antivirus block? I disable it and the message continues to show. Best Joseby jcgrj - Grand Prix 4
Re: fongu's thread - 2025 mod now available - 22 days ago
Thanks guys!!! Hope to be able to run it soon when my problem with GP4MA be solved.by jcgrj - Grand Prix 4
Re: Interlagos 2024 - 90% - 23 days ago
Do you need to edit all the pitlane or just the end of it? In case do you need something in the beggining will need to rebuild the complete pitlane. I can try to help but Im a begginer on dat editing maybe you can find a better specialist here. In case you wanna try let me know Good luck Joseby jcgrj - Grand Prix 4
Re: Introducing: GP4 Memory Access (by Carl_gpgames, Öggo and ZaZ) [v1.0.1 released 2024/12/22] - 26 days ago
Hi guys Im trying to run GMA but Im getting a strange message: "Im sorry but the AI has determined that you do not have permission to use this program" Any idea why is this happening? Best Joseby jcgrj - Grand Prix 4
Re: Looking for BMW-testing track by F1Virtual - 26 days ago
Hi Guys I can take a look in the cc line if you want!!! Looks great this work. Joseby jcgrj - Grand Prix 4
Re: I have windows 11 I have tried everything but my cars show white in the game - 26 days ago
Verify f1graphics.cfg file look for the following 2 lines if have the values bellow 0 ; Texture quality : 0 => max 2 => half 4 => qtr 8 => eigth 1 ; Increase car texture quality (1 on, 0 off) Best Joseby jcgrj - Grand Prix 4
Re: Engine Sound McLaren MP4-4 v2.0 MOD 1988 [ RELEASED ] - 27 days ago
Sound Files and Physics available in the video description Hope you like!!! Best Joseby jcgrj - Grand Prix 4
Re: Engine Sound McLaren MP4-4 v2.0 MOD 1988 [ WIP ] - 30 days ago
My answer concern the youtube video because you don't have the sound files I made . So I was talking about my instalation That means this cut effect you heard could be related to my installation and not the wav files that are in the sound. Anyway when it's ready you can try and let me know if in your machine you hear the same. Merry Christmas!!!by jcgrj - Grand Prix 4
Re: Engine Sound McLaren MP4-4 v2.0 MOD 1988 [ WIP ] - 30 days ago
Maybe in the record but I did not notice much that cuts you mention. Anyway its not a wav problem could be related to the dsoal.dll or directx lib used + hardware.by jcgrj - Grand Prix 4
Engine Sound Honda V6 Turbo v1.0 MOD 1988 [ RELEASED ] - 30 days ago
Hi guys. This is the new sound I'm buiding for McLaren MP4-4 Honda Turbo. I'm very satisfied with the results of this besides the GP4 limitations!!! Hope GRC4 have also improvements on this area like individual engine sounds for each car. Best and Merry Christimas to all!!! Sound Files and Physics links available in the video description video:by jcgrj - Grand Prix 4
Re: Engine Sound McLaren MP4-5B MOD 1990 v1.3 RELEASED - 30 days ago
Thanks George!!! Im glad you like it!!!by jcgrj - Grand Prix 4
Re: The Michele Alboreto Challenge - a 1987 mod - 5 weeks ago
Keep going. 87 need a good mod tooby jcgrj - Grand Prix 4
Re: GP4 EAX environmental sound option enabled, NO Crash To Desktop (CTD). CPU set to "All" in GPXPATCH, GP4 running now with All CPU cores. - 6 weeks ago
Thanks Noog I will test that. Do you know why if I use the option drivers with dsound lib on alsoft.ini the gp4 crashes? Maybe the dsound version Im using is the cause Best Joseby jcgrj - Grand Prix 4
Re: Öggo's Dev Corner: GP4++ [v2.0] and more... [Last Update: 7/12/2025] - 6 weeks ago
Amazing again!!!! Can I ask if you think it's possible to have individual engine sounds for each car as you have done with cockpits? Best Joseby jcgrj - Grand Prix 4
Re: Are there any cockpit tutorials? - 6 weeks ago
Nice work man. MOD 84 needs a lot of improvements like that. I wish I could help you!!!by jcgrj - Grand Prix 4
Re: Issue with tyre texture - 7 weeks ago
So do you map again the tex to the gp4 tyre shape? Can I ask what tool did you use for mapping?by jcgrj - Grand Prix 4
Re: Issue with tyre texture - 8 weeks ago
Hi raracunis Can you tell what was the solution? I had some problems with tyres textures too changing some from old mods. Best Joseby jcgrj - Grand Prix 4