BMW M3 CSL? Hard to handle in corners!

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Lumi

Lumi

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LumiLicious
I've tried some tunes from this forum but the problem is the cars rear is all over the place in corners.
Starting to get frustrated since I love this car and wanna be able to drive it in races! :(

Also from start it spins like hell.

The cars settings at the moment:
502 bhp
1153 kg
Soft racing tyres
Aerodynamic kit(wing) in the rear on 20

Initial Torque - 7
Acceleration - 35
Braking Sens - 5

Ride Height Adjustment -15/-15
Spring Rate 12.0/9.5
Dampers (ext) 9/7
Dampers (com) 8/6
Anti-Roll Bars 4/3

Camber Angle 2.0/1.8
Toe Angle -0.10/-0.05

Brake Balance Controller 6/4

I drive with DS3 and everything off except of ABS and I wanna continue doing that.

Can anyone help me and tell me what's wrong with these settings and what I should change so it stops spinning?
 
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Lumi
I've tried some tunes from this forum but the problem is the cars rear is all over the place in corners.
Starting to get frustrated since I love this car and wanna be able to drive it in races! :(

Also from start it spins like hell.

The cars settings at the moment:
502 bhp
1153 kg
Soft racing tyres
Aerodynamic kit in the rear on 20

Initial Torque - 7
Acceleration - 35
Braking Sens - 5

Ride Height Adjustment -15/-15
Spring Rate 12.0/9.5
Dampers (ext) 9/7
Dampers (com) 8/6
Anti-Roll Bars 4/3

Camber Angle 2.0/1.8
Toe Angle -0.10/-0.05

Brake Balance Controller 6/4

I drive with DS3 and everything off except of ABS and I wanna continu doing that.

Can anyone help me and tell me what's wrong with these settings and what I should change so it stops spinning?
Click to expand...

I don't have this issue with my CSL Tune, but if you already tried it & you still do. I'll have to check it out and your set up to get an idea, nothing looks out of the ordinary in your posted settings.

Make sure the chassis is in good condition to.
 
No_OBsT33R
I don't have this issue with my CSL Tune, but if you already tried it & you still do. I'll have to check it out and your set up to get an idea, nothing looks out of the ordinary in your posted settings.

Make sure the chassis is in good condition to.
Click to expand...

Great, appreciate it.
I've rebuild both chassis and engine so it can't be that.
 
Lumi
I've tried some tunes from this forum but the problem is the cars rear is all over the place in corners.
Starting to get frustrated since I love this car and wanna be able to drive it in races! :(

Also from start it spins like hell.

The cars settings at the moment:
502 bhp
1153 kg
Soft racing tyres
Aerodynamic kit in the rear on 20

Initial Torque - 7
Acceleration - 35
Braking Sens - 5

Ride Height Adjustment -15/-15
Spring Rate 12.0/9.5
Dampers (ext) 9/7
Dampers (com) 8/6
Anti-Roll Bars 4/3

Camber Angle 2.0/1.8
Toe Angle -0.10/-0.05

Brake Balance Controller 6/4

I drive with DS3 and everything off except of ABS and I wanna continue doing that.

Can anyone help me and tell me what's wrong with these settings and what I should change so it stops spinning?
Click to expand...
This tune is very good with no fail, just a little smooth on the spring for me but spinning?? Tryng to spin , i can't !!
Can you explain please with more details what do you want to correct on it.

I just make a test with more spring and + LSD it's 1"500 better on suzuka with 13.2/10.5 and 10/40/5, but i think this tune is very good.+++ tune
 
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Lumi
I've tried some tunes from this forum but the problem is the cars rear is all over the place in corners.
Starting to get frustrated since I love this car and wanna be able to drive it in races! :(

Also from start it spins like hell.

The cars settings at the moment:
502 bhp
1153 kg
Soft racing tyres
Aerodynamic kit in the rear on 20

Initial Torque - 7
Acceleration - 35
Braking Sens - 5

Ride Height Adjustment -15/-15
Spring Rate 9.5/12.0
Dampers (ext) 7/9
Dampers (com) 6/8
Anti-Roll Bars 3/4

Camber Angle 2.0/1.8
Toe Angle -0.10/-0.05

Brake Balance Controller 6/4

I drive with DS3 and everything off except of ABS and I wanna continue doing that.

Can anyone help me and tell me what's wrong with these settings and what I should change so it stops spinning?
Click to expand...

Try flipping the front and rear, see how you get on. This is how I run my BMWs, most others run them the same way you do. A rear bias will want to understeer, but that's how I like it baby!! The RKM CSL is very good, and praiano63 seems to think your setup runs well. I'm not in the position to check for you, but your figures also look good to me. Your Accel figure is a little high for my liking, I'd halve it. However, I find LSD settings to be largely a matter of personal preference.

{Cy}
 
I tend to run mine with more camber at the back than the front (say 1.6/2.1 F/R) but I use a lot less power, since I'm running it in for a 520 pp championship. At 366 bhp it's as sweet as a nut and I run the wing @ 15

Mind you, I've got tcs set to 1 also.
 
I'm with Cykosis, drop your LSD Accel setting.
I'd also consider taking another look at rear toe...
 
RKM's M3 CSL is perfectly balanced everywhere. Does your M3 currently have a wing? That could help.

The tuners will help much more than I ever could though.
 
It's definately the LSD that's troubling you. Your suspension settings look fine to me. Drop the accel by 10 but bring the initial and braking up by 5 each. That should help a lot.
 
Adrenaline
I'm with Cykosis, drop your LSD Accel setting.
I'd also consider taking another look at rear toe...
Click to expand...

Agree with this, your LSD Acceleration figure is too high, also, most of your settings are softer at the rear than the front. plus you're using negative toe and a level ride height - so it's not exactly going to be 'super planted' at the rear. But, I'm surprised at how much it is spinning, especially with racing softs on.

I race 400bhp (fully lightened) M3 CSL's and GTR's on sports soft tyres in a race series, those cars never spin, they're glued to the track, so if you're running racing softs and it's spinning, then it's the setup, or if all else fails, possibly do a chassis restore on it.

The chassis restore might or might not help, but once you've done it you can rule it out as being a possibility then just concentrate on your settings.

Worst comes to worst, lower LSD acc to 15/20, raise rear end to be either 3 or 6 mm (or even 9mm) higher than front and swap rear negative toe for some positive toe of above the same, or slightly higher figure. You could also try raising your rear roll bar a notch too as your srpings as dampers aren't massively 'hard'.

Car should be glued to the track by then big time.
 
ImprezaAddict
RKM's M3 CSL is perfectly balanced everywhere. Does your M3 currently have a wing? That could help.

The tuners will help much more than I ever could though.
Click to expand...

I agree with that, RKM's tune made major improvements but theres still a little bit of spinning if I'm not carefull in really hard corners.

I really can't understand why because the car didn't act like this before PSN went down and i didn't play these last weeks.

VTiRoj
It's definately the LSD that's troubling you. Your suspension settings look fine to me. Drop the accel by 10 but bring the initial and braking up by 5 each. That should help a lot.
Click to expand...

I'll try this as a final touch and see if it helps.


Another question: Is it a big difference driving offline and online? To me it feels as the car is acting different.


Thanks so far to everyone that has taken their time to write in this thread!
 
Lumi
Another question: Is it a big difference driving offline and online? To me it feels as the car is acting different.
Click to expand...

Yes. Online feels like you have a lot less grip than when driving the same car offline. Some people say it's because fuel wear and tyre wear is turned on, others say it's different physics. I'm not sure which it is because I dont venture online that much.
 
Where is this happening? Entry, center, exit?
On throttle, coasting or braking?
Be more specific than 'spinning'
 
I've taken your set up for a spin to see what's up. I have not been fully able to recreate the problem, but I may know why.

I don't have the gears your using and I suspect your issues may be there compiled with another easily fixed issue.

What I did feel was a wobbly back end, I see you have a stiffer front then rear, I suspect for driving style but soft. I noticed the car would rotate excellently around long sweeping corners (Fuji) it felt GREAT. Until the tighter corners where it would over-rotate. This would force a correction and slow me down, if throttle control is off by the slightest there was a hint at the possibility of spinning.

I feel the gears your using might be too aggressive in the 1 and 2 (could be gear ratios or FD) causing spin when the rear over rotates.

Increasing the rear ARB was an instant cure, keeping one click higher in front I went just to 6/5 and the over rotating rear was in check. It comes at the coast of a lil rotation around long sweepers, but IMO it's worth it.

This with a gear adjustment, and you should stay planted.

I hope this has been helpful, it's a great Tune none the less.

Cheers!
 
Adrenaline
Where is this happening? Entry, center, exit?
On throttle, coasting or braking?
Be more specific than 'spinning'
Click to expand...
When I gave gas while turning to leave the corner.
No_OBsT33R
I've taken your set up for a spin to see what's up. I have not been fully able to recreate the problem, but I may know why.

I don't have the gears your using and I suspect your issues may be there compiled with another easily fixed issue.

What I did feel was a wobbly back end, I see you have a stiffer front then rear, I suspect for driving style but soft. I noticed the car would rotate excellently around long sweeping corners (Fuji) it felt GREAT. Until the tighter corners where it would over-rotate. This would force a correction and slow me down, if throttle control is off by the slightest there was a hint at the possibility of spinning.

I feel the gears your using might be too aggressive in the 1 and 2 (could be gear ratios or FD) causing spin when the rear over rotates.

Increasing the rear ARB was an instant cure, keeping one click higher in front I went just to 6/5 and the over rotating rear was in check. It comes at the coast of a lil rotation around long sweepers, but IMO it's worth it.

This with a gear adjustment, and you should stay planted.

I hope this has been helpful, it's a great Tune none the less.

Cheers!
Click to expand...
I just tried it and all I can say is YOU ROCK! :D

You have been really helpful. Thanks to you and to everybody else that shared tips and their knowledge. I can kick ass with my baby again. ;)
 
Lumi
When I gave gas while turning to leave the corner.

I just tried it and all I can say is YOU ROCK! :D

You have been really helpful. Thanks to you and to everybody else that shared tips and their knowledge. I can kick ass with my baby again. ;)
Click to expand...

No problem glad to help out. The CSL is one of the best cars in the game IMO.
 
My apologies for bumping an old thread up.

But I too find that the CSL difficult to drive in the Spec 2.0 online races. Rear end snap over steers very easily online.

I've tried the TPT tune and also the RKM tune. Both are excellent for offline in the practice area. But once online it is completely different.

For example, Deep forest, the right hand turn going into the first tunnel. If you are feeding throttle into that turn, the back end just swing around. In offline mode in the practice area, you can feed it full gas and is a good place to trim time.
 
series5tii
My apologies for bumping an old thread up.

But I too find that the CSL difficult to drive in the Spec 2.0 online races. Rear end snap over steers very easily online.

I've tried the TPT tune and also the RKM tune. Both are excellent for offline in the practice area. But once online it is completely different.

For example, Deep forest, the right hand turn going into the first tunnel. If you are feeding throttle into that turn, the back end just swing around. In offline mode in the practice area, you can feed it full gas and is a good place to trim time.
Click to expand...

Raise the rear suspension up 5mm and let me know how it does.

I've found that to "cure" at least part of the strange handling woes of online when trying to use an offline tune, though it's not 100% and can cause a bit of understeer.
 
i raised her 5mm higher in the rear. quite good. the back end does not come around on you as quickly, thus giving you a chance to dial in countersteer. but that is not allowing for optimal lap times as you can't apply full throttle at that corner.

to be honest I'm finding the 2010 sti sedan to be faster for online racing. i'm using VTiRoj tune from the seasonal race for it. i find it superb.
 
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