BMW Z4 GT3

  • Thread starter Thread starter rosckolove
  • 130 comments
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Nobody touched the Z4, it went off on its own.
 
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You can see it starting to go as he moved over to the outside line. Same happens in GT6 if you rag it.

EDIT - Double post, so sorry... could've sworn there was another post :dunce:
 
It is much better simulated in Assetto Corsa which is where I drive it mostly. But if you get a good setup for the GT6 version it should fix the snap oversteer and make it a good car to drive.
 
Weird, I thought it was ok. But then again, the sloshing concreate slab that is the Audi R8 LMS Ultra was what set me in boiling rage (along with being disappointed with the Mercedes SLS). It is a tad understeery, but I can probably tune it and get rid of it for the most part.
 
If you have no patience whatsoever, and want POWEEEEEEER, buy the SLS. If you have even the slightest interest in driving the fastest thing and using some skill, buy the Z4.
 
hsv010
If you have no patience whatsoever, and want POWEEEEEEER, buy the SLS. If you have even the slightest interest in driving the fastest thing and using some skill, buy the Z4.
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I'd add to that, if you like inspecting armco barriers on the exits of bends at close proximity, the Audi is a winner :D
 
Ok i drove the Z4 tonight after reading this thread with all aids off ABS1 , Its piss easy to drive, The only thing terrible about it is the sound (surprise surprise), Also i took the sls for a spin and noticed the cars clock read ABS 3.
 
Understeers on initial turn-in then quickly transitions to oversteer (correct inputs ie: not turning the wheel or moving the stick too far to correct for the initial understeer lessens the transition effect). Tons of trail braking. Drives like a cross between a MR and a Vette. On completely stock settings RH, 5/5bb, etc, and abs1 only at Brands Hatch it took a couple laps to figure it out. Trail brake into corners with very little steering input rotates the car quickly. Lots of left foot braking needed to get the most out of the car on it's stock tune. Also applying the throttle before coming completely off the brakes tends to remove some of the twitchiness.

Honestly I don't see where the OP's level of exasperation is coming from. The car's a bit difficult to drive, somewhat quirky in its stock form, but it's not the worst thing since the plague or anything of the sort. Besides, when it comes down to it, it's a racing car and racing cars are designed to allow a huge degree of tuning freedom when setting up the suspension. Tune it.

Sark
 
Two posts above me. You aren't pushing it hard enough or you aren't on racing softs (unless you happen to be amazing at this game far beyond my capabilities) . To the poster directly above me. You drove it on racing hards, not softs. I have stated multiple times it's not that bad on hards. And after stating it multiple times, I'm amazed people are still telling me it's easy to drive, or it handles fine! If you aren't using racing softs, you aren't going to notice what I'm talking about. If you aren't pushing the car hard enough, you aren't going to notice what I'm talking about. Now that being said... Take the car to Nurburgring GP/F on racing softs. Run it at 552 hp/1250 kg's. Tire wear on, grip set to real. All aids off except Abs. Try and get it into the 1:52's or 1:51's on a consistent basis (at least 3 laps in a row) just so I know your actually racing and not taking a Sunday drive around the corners :) anyway do that and tell me the car is "easy"
to drive. I'm well aware the car can probably get into the high 40's with an alien driver but that isn't the argument I am posing. Just how stupid it drives when you go at least THAT fast. And then..... If you so happen to be a slightly above average driver like myself and manage to do so and think it's "easy"
to drive, please please please post this magical setup you are using.
 
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rosckolove
Two posts above me. You aren't pushing it hard enough or you aren't on racing softs. To the poster directly above me. You drove it on racing hards, not softs. I have stated multiple times it's not that bad on hards. And after stating it multiple times, I'm amazed people are still telling me it's easy to drive, or it handles fine! If you aren't using racing softs, you aren't going to notice what I'm talking about. If you aren't pushing the car hard enough, you aren't going to notice what I'm talking about. Now that being said... Take the car to Nurburgring GP/F on racing softs. Run it at 552 hp/1250 kg's. Tire wear on, grip set to real. All aids off except Abs. Try and get it into the 1:52's or 1:51's on a consistent basis (at least 3 laps in a row) just so I know your actually racing and not taking a Sunday drive around the corners :) anyway do that and tell me the car is "easy"
to drive. I'm well aware the car can probably get into the high 40's with an alien driver but that isn't the argument I am posing. Just how stupid it drives when you go at least THAT fast. And then..... If you so happen to be a slightly above average driver like myself and manage to do so and think it's "easy"
to drive, please please please post this magical setup you are using.
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That isn't an issue with the car, it's with Racing Soft tyres.

If you want to continue moaning, please do so, but the car is fine. It doesn't need a "magical setup", it needs some care and patience when driving the thing.
 
hsv010
That isn't an issue with the car, it's with Racing Soft tyres.

If you want to continue moaning, please do so, but the car is fine. It doesn't need a "magical setup", it needs some care and patience when driving the thing.
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I don't mean to be rude... well actually, I do. You aren't paying attention at all. The problem Is not with racing softs. The other beamers handle fine on them. It's the car. I'll say it again. It. Is. The. Car. Don't tell me I'm moaning when people like you clearly are not reading or comprehending my posts fully. 95% of what I said in the post you quoted I had already stated at some point in this thread. So if there is a problem with my grammar making my posts difficult to understand please point it out to me and I will try and fix the problem. If that is the case I apologize, however I am quite Confident that minor punctuation errors is not the problem here.
 
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rosckolove
I don't mean to be rude... well actually, I do. You aren't paying attention at all. The problem Is not with racing softs. The other beamers handle fine on them. It's the car. I'll say it again. It. Is. The. Car. Don't tell me I'm moaning when people like you clearly are not reading or comprehending my posts fully.
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I'm so glad you want to be deliberately rude. Good for you.

Oh, and yes, there is a huge probe with RS. Why? Because if this, and many other racing cars are fine on RH and RM, and yet RS creates a huge imbalance, that has to be the tyre's fault! 💡 :rolleyes:
 
Well, I think deliberately being rude is a little better than not having the intellect to realize, or not realize you're are being rude yourself, unless of course you were also doing so purposefully. And to the rest of your post..... Wow. I already stated the other BMW GT cars ( I'll throw in all the gt500 cars, almost all of the gt300 cars, the McLaren race cars, the R18 LMP, the FGT, and countless others) all handle fine on racing softs. I have said it before and I'll say it again. It's NOT the tires.... It IS car. The CAR has the same problems on lesser tires, the problems are just not as noticeable. Now we are at the point where I am having to repeat points made or evidence previously given to you in this thread to suggest your comments are just blatantly incorrect. So now my question is.. Are you here just to argue with me? I Apologize if I am coming off as a little harsh. I didn't appreciate your moaning comment very much. I'm hear to learn, hopefully about how to set the car up, since so many people say it's easy to drive (assuming they are doing so fast enough and on the tires I mentioned having the most issues with) Maybe give it a whirl as I suggested before? Then compare it to the other BMW GT cars. I'm pretty sure after doing so you will agree with me.
 
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My comments are not "blatantly incorrect" as you say. All i'm saying is I can drive the Z4 GT3 fine, and so can others. I haven't lost a race online with it yet. The car is SWB compared to other GT3 cars, and it's twitchy... you saw the real life photos above.

And no, I maintain that RS tyres are too grippy. What racing cars have yous seen roll over just because they took a corner too fast?
 
hsv010
My comments are not "blatantly incorrect" as you say. All i'm saying is I can drive the Z4 GT3 fine, and so can others. I haven't lost a race online with it yet. The car is SWB compared to other GT3 cars, and it's twitchy... you saw the real life photos above.

And no, I maintain that RS tyres are too grippy. What racing cars have yous seen roll over just because they took a corner too fast?
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I agree they are to grippy. I prefer racing hards. However my impatience and need to race as many people as possible usually leads me into the racing soft lobbies.. And that isn't the argument anyway. Still it is not the tires. It is the car. Run it at the nurb with the specs I mentioned. I'm not saying you can't, but if you can consistently get the car going that fast and still think it's easy to drive, you have a killer setup, or you are just a beast when it comes to driving the thing.
 
rosckolove
I agree they are to grippy. I prefer racing hards. However my impatience and need to race as many people as possible usually leads me into the racing soft lobbies..
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I can drive the Z4 with RS just fine though. And so can others. It's by far the best GT3.
 
@rosckolove : I just tested a RS online tune based on my RH tire tune posted on my garage, I used 50/50 weight distribution, same 552HP/1250kg, used low rpm turbo. Still with stock aero and gearing, the Z4 can do 1:53s at Nurb GP/F online with tire wear on normal, grip real - ABS 0. I made some adjustment on damper ( softer overall ), lower ARB ( softer ), and LSD with high initial, lower accel, and same brake sensitivity. The car has 609PP. I am sure with optimized aero and gearing ( shorter ) it will be much quicker.

I also found that shifting weight balance forward and running higher initial/preload on LSD helped to reduce sudden traction loss when exiting low speed corners. The tune has a bit understeer that easily creep in when going in too fast, but at least it can hold speed on the esses, steady high throttle on the hairpin and almost flat out on the uphill high speed esses ( lift a little on entry )
 
It is indeed the fastest GT3 car. That is why it frustrates me so much that it does such stupid things. I'm pretty sure I could get into the high 40's with the thing at those specs if I could just get a clean lap in. However it's retarded handling characteristics make consistently going that fast hard as hell. Hsv give it a shot with the specs I mentioned. Let me know how fast you can get it going 3 laps in a row. My phone browser will not let me get rid of this emoticon..... Ignore it... And Ridox. Go faster, consistently. That's when it becomes a pain. The car has so much more potential, I just can't set it up for the life of me. Also I will try your tune when I get home. 🤬
 
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Do you use turbo or engine stage 3 ? I just tried engine tuning, much lower torque at 427 ft lb, while low rpm turbo 525 ft lb :eek:, same 552HP.
 
Ridox2JZGTE
Do you use turbo or engine stage 3 ? I just tried engine tuning, much lower torque at 427 ft lb, while low rpm turbo 525 ft lb :eek:, same 552HP.
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Oooh, more PD-ness :lol:
 
Ridox2JZGTE
Do you use turbo or engine stage 3 ? I just tried engine tuning, much lower torque at 427 ft lb, while low rpm turbo 525 ft lb :eek:, same 552HP.
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it's faster with the turbo but slightly easier to get out of corners without it. I'm not much faster with the turbo with the testing I did. Less than 7 tenths faster so far. Preferably
I would like to use the high RPM turbo though as it should yield better lap times. I use engine stage 3 and turbo then PL it way down. I cheat the system as much as I can ;)
 
rosckolove
it's faster with the turbo but slightly easier to get out of corners without it. I'm not much faster with the turbo with the testing I did. Less than 7 tenths faster so far. Preferably
I would like to use the high RPM turbo though as it should yield better lap times. I use engine stage 3 and turbo then PL it way down. I cheat the system as much as I can ;)
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:lol: Lots of power limiter flatten the power curve on high rpm range, sometimes it gives good result :) I think stage 3 and low rpm might do well too. 552HP, 560 ft lb, 611PP, 83.3% limiter, and the HP+torque curve looks good.

Here is my ballast, suspension and LSD setup for online RS, tire wear normal ,grip real, Nurb GP/F, stock aero and gearing, low rpm turbo only.

Weight distribution 50/50
Ballast : 60kg
Position : -50

LSD

Initial Torque : 32
Acceleration Sensitivity: 22
Braking Sensitivity: 46

Lower these if not suitable, somewhere 28/18/32 will make the car more loose.


Suspension
Front, Rear

Ride Height: 75 80
Spring Rate: 17.27 20.25
Dampers (Compression): 5 3
Dampers (Extension): 5 3
Anti-Roll Bars: 3 2
Camber Angle: 0.0 0.0
Toe Angle: -0.08 0.16

These are just 15 minutes tune/test :) so it will need further adjustments.
 
:):)
I'm on a galaxy s3 and this forum interface absolutely sucks... I can't delete stuff and it inserts text randomly in the middle of other sentences. What a nightmare. I have to post. Wouldn't let me get rid of it. Hsv give that a try. I would also ike to race with you sometime. I like GT3 races
 

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