The custom GR4 Cars Thread

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I've been experimenting with this as well but haven't gotten very far lately. I think my favorite version I've created was the Alpine A110 which is a perfectly useful race car and a joy to drive. One thing I've noticed is that the fuel burn on all these cars is notably worse than actual GT4 cars so many of them aren't super effective in the latest endurance races. For example, the A110 couldn't win the Deep Forest race so I used the Toyota SF-R race car which did well. Damn I wish they would've built the SF-R, that concept was production ready!
 
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I've been experimenting with this as well but haven't gotten very far lately. I think my favorite version I've created was the Alpine A110 which is a perfectly useful race car and a joy to drive. One thing I've noticed is that the fuel burn on all these cars is notably worse than actual GT4 cars so many of them aren't super effective in the latest endurance races. For example, the A110 couldn't win the Deep Forest race so I used the Toyota SF-R race car which did well. Damn I wish they would've built the SF-R, that concept was production ready!
Different cars have different fuel consumption.
I ran the 30mins of lemans with many of my custom gr4 cars. Some only can do 2 laps in fuel map 6, others can do 3 laps in map 4.
 
See my Michelin Pilot GT4 Cup Challenge link in my signature. Already on it. 😉
Yes saw that earlier...how is organizing and running the sessions with the current state of lobbies? Looks tempting, but with my current projects, I'm hesitant to commit without being able to follow through (accountability, it's kind of important for me).

GL with it, looks like there is much interest and you have done your homework :lol:

If anyone wants to gather on a casual basis, please post here or somewhere so we can see/run these incarnations.
 
Yes saw that earlier...how is organizing and running the sessions with the current state of lobbies? Looks tempting, but with my current projects, I'm hesitant to commit without being able to follow through (accountability, it's kind of important for me).

GL with it, looks like there is much interest and you have done your homework :lol:

If anyone wants to gather on a casual basis, please post here or somewhere so we can see/run these incarnations.
Unfortunately, we're on hold until we get some lobby features that work for league organizations. The idea is to be tested, custom BoP'd and ready to go when/if that happens.
 
I added the Corvette settings sheet above.

I thought I'd share another. I have a Nissan 300ZX I'm working on, and she's handling pretty well. I still have some tuning to do to make her easier to race, but she's within the 660PP limit right now for Gr4. I've been giving my tuners-in-progress a carbon weave finish.

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She's pretty okay, though even with TC1 she likes to spin without careful lead foot. If anyone has suggestions on improving this - @praiano63 - I'd be much obliged. ;)
Keep me updated on the ZX tuning. I did some tuning of my own but still don't enjoy the drive but maybe yours will help.
 
I'm a little bit baffed by the aero. A stock M6 GT3 on Dottinger straight with something like 580hp? and 430 front and 590 Rear downforce can barely get over 170. But my 997 with 425 hp 200 and 300+ KG of downforce on front and rear is reaching 180 on dottingher. Is my drag coefficient on the 997 that good?:lol:

I remember on sport, the Gt Citroen one of the few N cars that had downforce on front and rear, 100kg on the front and 200 on the rear or something like that. Had a very bad top speed for the HP it put out. I attributed it to simulated drag maybe I'm incorrect there?. So is it me or was drag more potent in sport?

sorry if this is not entirely related, but the bamboozling top speed of some home made race cars with down force bits personaly makes it hard for me to class them accurately.
 
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Close? 🤷‍♂️

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The new physics totally mess up my previous setups, but now, i can use more cars because they are more afordable tu race.
Big update:

Focus TCR Gr4
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I have to be honest, this is a beast, totally overpowered with the new physic, but also very fun to drive. with only 635pp destroy real 650pp GR4 cars

Maseratti Gran turismo GT4

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Lowered the PP, faster than before, same happy tail

Aston Martin DB11 GT4

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This isn´t competitive before the update, but now she want to eat the road, very stable, almost on rails

Camaro GT4

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like the Focus, this is overpowered. With only 358cv, is fast as hell, on rails, and fast on corners

Lexus LC500 GT4

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Just look at this beauty. Not only is beautiful, it sounds like a dream and drive like a beast

Mercedes AMG C63 Gr4

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This is a real good new. Before the update, i was unable to setup this car to be fast, she only wants to kill you in every corner. But now, is very fast, a little nervous, but with back brake balance you can push it to the limit

Civic type R ´20 TCR Gr4

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i´ve update the setup to match with the other cars performance. Same fun than before


i will update the other setups
 
Loving all of the great work here. Excellent tunes and fantastic liveries.

The Alpine and tha Alfa 8c really stand out to me.

All of the ingame Gr.4’s are leaving me cold at the moment, no fun to drive.

I like the idea of making my own for the 700pp races.

Will be back soon with a Gr.4 997 I think.

One question though… do standard Gr4s carry a lot more fuel than a tuned road car?
 
Loving all of the great work here. Excellent tunes and fantastic liveries.

The Alpine and tha Alfa 8c really stand out to me.

All of the ingame Gr.4’s are leaving me cold at the moment, no fun to drive.

I like the idea of making my own for the 700pp races.

Will be back soon with a Gr.4 997 I think.

One question though… do standard Gr4s carry a lot more fuel than a tuned road car?
You can do 3 laps in le mans with the focus RS with this setup with fuel map 5/6, similar to a standar gr4.
Others only 2 laps, or 3 if you economize the fuel.
All of this are very much fun than a standar gr4, and even faster
 
You can do 3 laps in le mans with the focus RS with this setup with fuel map 5/6, similar to a standar gr4.
Others only 2 laps, or 3 if you economize the fuel.
All of this are very much fun than a standar gr4, and even faster
I just tried the Redbull 700 with my 650pp 997 tooled with Racing Hard… took me to 705 so a quick dial down a couple of percentage and I was racing GR4’s.

I was faster, the car was so much more fun than any Gr.4 I have, but I lasted 3 laps out of 10.

I fuel mixed at 4-5 for the last 7 laps and was 2 seconds off my best from the first stint but needed the 2nd stop.

A win is there I think, with more intelligence (and skill to handle 1.5 laps of rain on slicks). An interesting conundrum to solve!

I get very little pleasure from my Gr.4’s, finding them heave and underpowered, preferring 550-650 R34, NSX, 930 or 997. I do like Gr.3 though, so this “make your own Gr.4” is very appealing.
 
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I continue adapting setting to the new physics. I notice, that in some cars, I've to low to much the power to achieve 650/655pr.
Even that, they are fast, faster than stock gr4
 
I continue adapting setting to the new physics. I notice, that in some cars, I've to low to much the power to achieve 650/655pr.
Even that, they are fast, faster than stock gr4

I had the push the pp to 660 on the z34 to keep the hp competitive. Will post the tuning sheet soon
 

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This thread really got my thinking. I took a few of my Gr.4’s out in a couple of the 700pp races. They did fine but are really not that much fun to drive.

So I then took my ultra 997 out and bought it some race tires.

It already had the full selection of engine upgrades and is as light as you can get it And a monster in 650pp guise on SH.

Armed with the new Priano tune for this beauty, and now on slicks, she is very competitive on Fuel mix 4 or 5 In the 700pp races.

Decided to give her a new race livery Because she will be getting a lot of action!

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It’s like a “real” Gr.4 car. However, the rear end physics on acceleration. Just a hair-trigger too much throttle and it wants to break away. Lateral grip is tight though(despite the lack of downforce to match the other Gr.4 cars) and the brakes are great. Generic Gr.4 suspension numbers.
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Mayor update

Mclaren MP4 12C GR4

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This is weird. Before the new physics, this is on rail, but now is much oversteering. even that, is quite drivable and fast

Alpine A110 GT4

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unlike the mclaren, the alpine has gone from oversteering everywhere to being docile as a puppy.
but that does not mean that it is slow, in my tests it is the fastest of the GR4 despite its "little" power

AMG GT-R GT4

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I have changed the AMG GTS for the GTR to be more faithful to the real GT4 model, and it has been a success.
It's just as stable in corners, even without TCS, but it's faster and more aggressive, really fun

RX-8 Gr4

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New livery more in line with that of a GT4, new setup.
It still likes to lose the rear if you go full throttle out of a corner, but if you throttle the throttle it will do what you want at breakneck speed.
And it has the plus of having one of the best sounds of all the Gr4

Skyline GT-R R34 Gr4

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And here is the newcomer, with the classic gt300 livery, and full of power
It's fast, docile, beautiful, it's perfect
 
Alpine A110 GT4

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unlike the mclaren, the alpine has gone from oversteering everywhere to being docile as a puppy.
but that does not mean that it is slow, in my tests it is the fastest of the GR4 despite its "little" power

Skyline GT-R R34 Gr4

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And here is the newcomer, with the classic gt300 livery, and full of power
It's fast, docile, beautiful, it's perfect
Awesome work on the Alpine. Will be giving that a go.
And I already have several R34’s in different tune set-ups and I love driving them. Will be also giving it a go.
Nice work!
 
This has re-energised the 700pp races for me. So much more fun to drive your own Gr.4’d car. The only downside is I seem to have to drive on Fuel Mix 5 or 6 so have little in the way of pit stop strategy up my sleeve.

Cannpt recommend the 997 highly enough. What a joy to drive. So smooth, so consistent, amazing noise and great to see the blue flames from the exhaust on replay. I am finding I need to be pretty much perfect to get the win, quick through the early pack, no time to change tires and consistent for the last 5 laps with some FM 2 saved for the last half lap. Won Brands, Dragon and Redbull now with this car but never by more than 1.5 seconds!

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Amg A45 gr4

I used morsemonkeys tune and adapted it slightly by adding a racing exhaust manifold, racing silencer and racing air filter. Also increased the top speed on the transmission

 

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I'm fairly confident in this one now to post the specs I have decided on. Car feels good but will bite you without TCS so you have to learn it's limits, but once you have it down it's quite fun. I went with little aero on this one for a couple reasons: 1) the recently shown Z racecar that will compete in the Fuji 24 hour race has no additional aero over stock besides the rear wing, and 2) GT4 cars tend to have very little additional aero over stock besides a rear wing and/or diffuser. I thought just the wing was appropriate here, adding a diffuser would have been too much downforce in the rear. The car as shown below is fairly neutral. I was aiming to match real life GT4 times at Spa and even at these specs it is 1.5 seconds quicker than the pole time for the recent Spa 12HR. Oh well.

For the gear ratios, you have to set the Top Speed to 800 km/h (Max), then put 1st and 2nd gear all the way to the left. Set 4-6, then return to 1-2 and set them, then set final drive. 7-9 can be set super high so you can ignore them as they are not needed. When I build cars like this I like to use real settings where appropriate, so with this car I used the stock 3.538 final drive ratio from the 6MT (9AT is 3.133) and then used available gearing from the Quaife QBE69G 6-Speed HD sequential transmission. The only thing "custom" is 5th gear, as I felt that everything Quaife had available was too tall or too short.

High RPM turbo is used to keep wheel spin under control at low revs.
Wide body probably optional.
Only aero added is the small rear wing.



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(Ignore the name of the tuning sheet at the top)
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I'm fairly confident in this one now to post the specs I have decided on. Car feels good but will bite you without TCS so you have to learn it's limits, but once you have it down it's quite fun. I went with little aero on this one for a couple reasons: 1) the recently shown Z racecar that will compete in the Fuji 24 hour race has no additional aero over stock besides the rear wing, and 2) GT4 cars tend to have very little additional aero over stock besides a rear wing and/or diffuser. I thought just the wing was appropriate here, adding a diffuser would have been too much downforce in the rear. The car as shown below is fairly neutral. I was aiming to match real life GT4 times at Spa and even at these specs it is 1.5 seconds quicker than the pole time for the recent Spa 12HR. Oh well.

For the gear ratios, you have to set the Top Speed to 800 km/h (Max), then put 1st and 2nd gear all the way to the left. Set 4-6, then return to 1-2 and set them, then set final drive. 7-9 can be set super high so you can ignore them as they are not needed. When I build cars like this I like to use real settings where appropriate, so with this car I used the stock 3.538 final drive ratio from the 6MT (9AT is 3.133) and then used available gearing from the Quaife QBE69G 6-Speed HD sequential transmission. The only thing "custom" is 5th gear, as I felt that everything Quaife had available was too tall or too short.

High RPM turbo is used to keep wheel spin under control at low revs.
Wide body probably optional.
Only aero added is the small rear wing.



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(Ignore the name of the tuning sheet at the top)
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Awesome!
i´ll try this setup.
i preffer add some aerodinamic parts like the real GT4 cars or the in game GR4 have, but in this case the difference would be minimum.
I love what you do with the gearbox
 
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Amg A45 gr4

I used morsemonkeys tune and adapted it slightly by adding a racing exhaust manifold, racing silencer and racing air filter. Also increased the top speed on the transmission

It’s like a “real” Gr.4 car. However, the rear end physics on acceleration. Just a hair-trigger too much throttle and it wants to break away. Lateral grip is tight though(despite the lack of downforce to match the other Gr.4 cars) and the brakes are great. Generic Gr.4 suspension numbers.
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i try this 2, and very glad to they

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This is a little beast.
I follow the setup of morsemonkeys but change a little to fix the lose of the rear traction, now is very pleasant to drive and very agressive, very very fast

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i´m surprised with this one. i didn´t expect an fast and agile car, but i found it.
almost on rails, fast, very good on corners...one of my favourite GR4 cars until now
 
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