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Post by rcgldr on Oct 22, 2009 23:58:18 GMT
Seem like my fastest laps occur with 0 downforce or 0 front 1 rear downforce (thinking it might fool the game into making a car more stable at speeds). The downforce doesn't seem to be helping me much with the Zonda R. My best standing start run is a 6:16.190, 0 front 1 rear, but top speed is 220 mph 355 kph, so in an actual online race, it helps because it's much easier to pass on the straights than it is in the turns. rcgldr.net/nfss/nsnsznd1.wmvReal race cars use a similar strategy, but tire wear may also be an issue. Qualfying is done with a high downforce setup. For example a Formula 1 car might have enough downforce to limit top speed to around 195 mph to 200 mph at Spa, but a race setup might reach 210 mph or a bit more.
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Post by Grnkjr0 on Oct 23, 2009 3:12:32 GMT
Yes downforce helps a lot. In our ongoing 14.00 competition if I set no downforce on the GT-r and in that high speed chicane with the blue bags it will spin out if I drive it the fastest way around those - does´nt happen with downforce set for cornering.
But whether it works the same our gives the same downforce on every car - don´t know.
Poul
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Post by rcgldr on Oct 23, 2009 5:01:37 GMT
Yes downforce helps a lot. In our ongoing 14.00 competition if I set no downforce on the GT-r and in that high speed chicane with the blue bags it will spin out if I drive it the fastest way around those - does´nt happen with downforce set for cornering. I assume you mean Spa, if you drive on the curbing a bit, it's a bit less bouncy. With zero downforce you may end up going slower there, but then you may end up with faster speed on the long straight that follows. The main issue is that the downforce seems to increase stability, but it's not increasing cornernig grip much, similar to the physics bug in NFS Porsche Unleashed, where downforce didn't improve grip at all.
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Post by VGSpeedPro on Oct 23, 2009 11:59:55 GMT
Hi!
Jeff, to feel the real differences you need to have all Assists Off... I dont know if nowdays this is what you usually do, but just wanted to point it out.
In our 14.00 Rating Competition, over Autopolis Lakeside, knowing what I am doing with Default Setup and what Poul is doing with Max Downforce, I would say that in this Track with R35 V-Spec the difference is about 1.5s to 2s a Lap.
Cya!
Rogério
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Post by aarog5606 on Oct 23, 2009 12:26:31 GMT
My first time posted in Autopolis with no downforce was high 1:43. After i adjusted downforce to max, my time was low 1:40. Downforce definetly helps with stability and traction.
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Post by rcgldr on Oct 23, 2009 13:18:13 GMT
OK, but run the same comparason at Spa GP, where the top speed helps in a few spots. I've found that lowering tire pressures to 30.00 or 28.99 helps with the grip factor.
Maybe this is mostly a quirk with the Zonda. Perhaps "zero" downforce isn't really zero, but just enough. The downforce setting doesn't seem to be a lot, as it doesn't keep it from going airborne at the crest of the first hill at Nordschleife.
I also have all assists off, plus autoclutch off, which helps a lot when launching the Zonda (if you use manual shift).
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Post by VGSpeedPro on Oct 23, 2009 13:21:30 GMT
Hi!
Spa GP cant be used for something like this... Its a track where low downforce and high dowforce setups can produce the same results. At least in my SimRacing times it was like this, and I believe that in NFS Shift that remains true.
Cya!
Rogério
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Post by rcgldr on Oct 23, 2009 13:24:57 GMT
Spa GP cant be used for something like this... Depends on the car. In the case of a Formula 1 car, lap times are faster with high downforce, even though top speed is significantly slower, perhaps 195 mph versus 215 mph. However NFS Shift's cars aren't high downforce cars. With the GT cars from GTR2, lower downforce did produce faster lap times, and these are closer to the cars in NFS Shift. Then again, there's the point about higher top speed making it easier to pass on the straights. On a tighter track, the higher corner exit speeds would translate into a higher straight speed though.
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Post by VGSpeedPro on Oct 23, 2009 13:31:44 GMT
Hi!
That is not linear and not exact science... Is because of that that Races in Spa and other similar Tracks like Interlagos or even Silverstone are always interesting. This year with the cars having Slick Tires and a restrictions that in reality allowed them to corner faster, things got a little more hard to see.
About Tire Pressures, usually if you use lower you have more grip entering corners, but you can loose corner speed and some straight stability. If you have higher pressures, its more or less the opposite... In a Track like this, with medium/high speed corners that produce changes in car direction at greater speeds, its not surprising that a lower pressure may be the way to go, especially if you have lower downforce.
Rogério
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Post by rcgldr on Oct 23, 2009 13:39:45 GMT
The problem with NFS Shift, is without the tire temps, there's no real way to determine what pressure results in the tire surface being flat. I'm not sure if tire pressure versus contact patch shape is being modeled in NFS Shift, so other than trial and error, it's hard to optimized the tire pressures, and as you mentioned, higher downforce would normally require higher pressures.
For the cornering, at least for the slow to moderate speed turns, I'm finding that maintaining some amount of throttle induced oversteer is helping. For the Zonda, it's a bit tricky in 2nd gear, but in 3rd or higher gears it's not that difficult to control. I take the final hairpin at Siverstone GP in 3rd gear, going flat out just 1/2 past the apex, using steering inputs to keep the car in check. Some type of hidden assist, as this would cause a car to spin out in GTR2. In NFS Shift, it's not too difficult to keep the car a bit sideways in these moderate speed turns compared to the classis sim oriented racing games (especially Grand Prix Legends).
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Post by VGSpeedPro on Oct 23, 2009 13:50:37 GMT
Hi! Yes, without tire temp we cant really tell what is what... Only our virtual ass can do anything about it! For corners you can use Trailbraking or you can put Brake Balance a little to Rear and do what you are saying. In GTR2 you can also do this, at least with Wheel, if your Setup is build with that in mind. Rogério
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