Discussion in 'Vehicles' started by yoss, Jan 25, 2014.
Three 40 laps races have been run on the same track, Mid-Ohio.
The first race was won by Alpha-Bravo driving a Mc Laren, tyres lasted all race.
The second race saw Enrico Tsunami driving a F458 win, tyres lasted all race, followed by Lestrat driving a Z06 and Alpha-Bravo driving a Mc Laren (2nd and 3rd pitted once).
The third race saw Bumble, that set numerous fast laps during practice on a wide variety of cars, win driving a Z06, second was Tosch driving an SLS, third was Chesco on a Z06, (1st and second didn't pit, so tyres lasted 40 laps).
As an expert said on this tread :
"The only car with a well balanced tyre wear is the Camaro , for sure with original physics. You can adjust the Setup with the others Cars, but than you will get an unbalanced driving behaviour. The tyre degradation is much to High imho. I know from a real Gt3 race Driver that they can push the tyres a whole hour without loosing noticable GripThe only car with a well balanced tyre wear is the Camaro , for sure with original physics. You can adjust the Setup with the others Cars, but than you will get an unbalanced driving behaviour."
So my most sincere congratulations to the three different race winners, who were able on three different cars, none being the Camaro, to control cars with "an unbalanced driving behaviour" for 40 laps, with the same set of tyres, on a very demanding track like Mid-Ohio.
Cheers and have fun racing.
P.S. Zandvoort 2011 GT3 real pilot interview:
And yes, believe it or no, he was managing his tyres, as he said "it was all about managing the tyres". The poor guy had a car with very poor physics, very unrealistic, surely an APEX GT3 design.
Nr44 Heico Motorsport Mercedes-Benz SLS AMG GT3
“We are happy. The target was to bring the team championship home. I had a pretty bad qualifying; I couldn’t find a free lap to do a time. My target in the qualifying was to do at least as fast as Dominik did, but that wasn’t the case. We started from 12th. I had a pretty good start. After that, it was all about managing the tyres and trying to give Dominik the best car possible, and that’s what I did. I was behind the little train in front of me which had a good race pace in the first stint, but I was checking my mirrors more than I was looking ahead, managing my tyres. Then I gave Dominik the car and he was lapping 2 seconds faster than the cars in front of him, and that’s what I was supposed to do and that’s what I did. We’re very happy to have the team championship in our pocket.”
How was the tyre wear at the end of the races? Are these guys had driven with (almost) default setups?
I have the data for the first race winner, http://isiforums.net/f/showthread.p...T3-mod-(0-930)?p=405980&viewfull=1#post405980
"Are these guys had driven with (almost) default setups"
Why don't you ask them?
Default setup were designed to be drivable as is at ISI Portugal, not race setups even at Portugal (undesteer built in).
My setups for Portugal are quite different of those I would use for Mid Ohio.
I believe Tosch was driving a setup based on Emery's for the SLS in the last race, cannot confirm.
Here is my setup I used at the race. It's Emery's setup slightly modified.
Here is the replay file of the race (medium quality. 26MB).
As you can see I was able to follow Bumble for the first five laps but that overheated my tires (SLS is heavy ), so I had to reduce the speed a bit. My hope was that he had to make a pitstop later in the race, but he didn't.
Tiretemps were pretty equal and manageable over the race. At lap 15 the tire indicator showed yellow for both left tires. The last 3 laps were a bit slippery, but nothing to worry about.
Yoss had a pedal failure at lap 10 or so, which is a shame, because it would have been a very exciting battle at the end of the race.
Thank you, sir!
Adapting to conditions--tire wear, rain or moisture, sometimes heat is what racing is all about. These cars, especially my favourite the 799, are all realistic and simulated well enough to allow that "management" to occur. You can't just go out on track and recklessly drive your fastest possible laps at 10/10ths. Racing is about risk management.
Winning a race is not about going as fast as you can. The goal is to go as slowly as you can (minimal risk taking), but still be ahead of everyone else. Lgel's quote from Zandvoort shows that when you have longer races with multiple drivers, it can get even more complicated with one teammate having a different mission than another depending on their skillset and the timing or situation in the race.
All I did with the Z06 was Rear wing down 1 and softer front springs and moved towards Emery's damper settings. It wasn't a cracking race set up as I ended with (approx) 50% fronts and 75% Rears left. Like all good things it takes, (me anyway ), time to get it to feel how you want, as I was driving most of the cars as a test they could all be improved to suit me with time and effort. The times I have been lucky enough to be given a set up by an "Alien type" I have noticed two things. They are wildly different approaches to the same end and I can't drive any of them very well. The Apex mod is great if you put the time into making them suit you, apart from the Camaro but the fault lies with me and how I am approaching it not the "Dark work of Satan".
SLS, 799 and 458 I used Emery's set ups as a starting point, many thanks for your time and effort, and then changed what I didn't like. Z06, MP4 and Z4 I used defaults as a starting point, Camaro I didn't .
One observation I would make re the tyre model, I have not yet found a way to make a double stint on one set of tyres a workable alternative to changing them every tank of fuel. I have to give away more time protecting the tyres, when I do have a balanced set for a track , than I gain by not changing.
Thanks for all the effort to all involved, much appreciated.
diogo falcao point me one interresting link about "setting up a car " : http://www.racingonthecheap.com/recommended-reading/carroll-smiths-handling-guide/
The tyres are intended for endurance racing, if you are getting tyre wear above normal, try lowering your springs (lower possible) and check your ride heights on the motec so you are not losing speed due to car bottoming out, after that, try lowering damper's velocity (rebound should always be higher than bump speed).
If your problem with tyre wear is during slow speed corners, maybe your anti-roll bars are too stiff for the track, if you are having problems on fast corners, try to change wings.
Some tips about pre-load:
Pre-load (low throttle range)
High = Nervous transitioning from braking/acceleration, easier to balance turns with throttle, harder to keep stable accelerating from slow turns, easy to spin under power, easier to break traction with rapid power lift-off
Low = Less responsive transitioning from braking/acceleration, easier to accelerate from slow turns but tendency to understeer.
Last but not least, try messing up with tyres pressure.
I tried your setup for the MP4 in Sebring (which you shared with me thanks again ) and it was very stable and quick but yes there was also some understeering and a bit loose rear (for me) noticeable.
What I remember I reduced the rear height a bit changed the steering lock moved the brake bias a little bit to the rear and (not 100% sure) made the front a bit softer.
Helped in my case a lot. But as I often mentioned I'm also still in the learning process.
Despite the fact that it drives awesome, I don't get how you can remotely drive the McLaren without getting completely annoyed by the horrible sound blending. The sound itself is fine, if not great, but just like the Mercedes the blending is completely off. Most cars have minor blending issues, but these two are the very worst.
And while the interior of the Corvette sounds okay, from the outside it sounds just like it doesn't reach 3000 rpm. Even my C4 Corvette with stock exhaust screams higher and sounds more menacing when it reaches 3000 rpm.
If these issues don't get fixed, I'm going to do it myself. I like this mod too much to leave it.
I have been a fan and also a critic, but it is important to observe this is still v.930. There will be updates until the team decide it's up to v1.00 standard. So our concerns, from audio, visual and driving realms, shall be addressed at some point or another.
Ask if you can help. If you are able to provide better samples or mixes, the team may choose to use them in an upcoming update, as Gui said.
I didn't say that.
You took the rear wing all the way down on a track like mid ohio ?
What you do on a track like LeMan ? Reverse in the wall to let it fall so you don'T have it at all
yoss can't pm you, inbox full, by the way server is with sao paulo up
i made some cleaning ,25 mp today ,hard to let some place
Are there alternative sounds to the Vette so I can listen to the engine in the cockpit?
I am testing at Bathurst for the Neo BR 12 hours. (Porsche 799) 2 weeks ago I had fairly bad front tyre wear. (V930). Last night through get mod there was an update.
The tyre wear was much more even (nice). The rear grip was less (hence the more even wear I guess). I needed to lower rear ARB and springs. Now my lap time is the same but with even tyre wear.
Does anyone know about these changes?
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