Three Hundred Miles Per Hour

  • Thread starter Thread starter Dark Elite
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interesting stuff you brought up 2078TM, never thought of that!! i also think that the slope is important, so i'm looking forward to your test-news, both of you D.E and 2078TM đź‘Ť

viper
 
I give up on my project car for a change. I couldn't get more out of it that 295mph. and before you ask what it was, I tell ya. Option Z aka Rice-O-Rama :D
 
Hello all, and long time, no see! I haven´t been doing much 300 mph testing as of late, but I do check out this thread from time to time :)

I couldn´t help recalling something when I read about this Mulsanne/Döttinger Höhe vs. Test Track issue. IIRC I reacted on something when I once took a 300 mph setup to the "Like The Wind" race; it was a bit slower than in a max speed testing session (except during drafting)! I have no idea why, but maybe the Max Speed sessions are just a little bit "over the top" compared to other races/tests. Maybe PD put in couple of mph just for more sensation of speed...I don´t really believe that, but who knows?
 
I noticed that when I ran Le Sarthe backwards for fun, the Mulsanne straight went downwards, instead of suposedly going upwards. Then I stopped at the "Dunlop" sign and then turned around and went again. This time I went down, yet again. What's going on?
 
Hm, I did try my Audi R8 at the Nordschleife - not one of my 300mph ones, I used my Number Three, which means it did not actually have a proper setup on it. Some quick fiddles saw it reach 307mph, but the vibration is ridiculous. It's probably possible to run no front downforce at all and keep the nose down. Next time I'll try my 353mph setup and see what happens :p

Team666, that's an interesting idea, but until you do a Free Run at the Test Course and then a Max Speed Test, with a setup that doesn't rely on the way you take the corner or timing or indeed anything, there's nothing to prove it except a feeling. The same setup can differ by 5mph in the Max Speed Test, so... :indiff:

GT4_Rule, I've not actually checked this but as far as I know the Huandairies Straight (let's name it properly) has almost no elevation change at all until the right kink :p it's an illusion

DE
 
Dark Elite
Team666, that's an interesting idea, but until you do a Free Run at the Test Course and then a Max Speed Test, with a setup that doesn't rely on the way you take the corner or timing or indeed anything, there's nothing to prove it except a feeling. The same setup can differ by 5mph in the Max Speed Test, so... :indiff:



DE
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Sure, but the difference was larger than that. When I said "a bit", that means 10-15 mph, and also being me, a difference of more than 2mph with the same setting is rare. The thing is of course, that if you run whole laps around the Test Track, you do have to brake for all turns except the first, or else :scared: That has to be the main reason! Now, why didn´t I think of that before?? :dunce:
 
OK - here are the results of my "scientific" experiments with the various tracks.

First, rather than trying to see what maximum speed was possible at each venue I simply took my TS020 with its 371MPH settings and ran it. The point being to isolate track differences. At both Le Mans and Nurburgring higher top speeds are certainly available with setups tailored for them.

I first did an oil change and went to Germany. Going in the correct direction the car topped out at 240-242 and then picked up an additional 13MPH as I headed downhill past the bridge before crashing just before the pit entrance (I did not attempt to make the turn - I just wanted to see how high the speed would go). I then turned around and went backwards - downhill through the esses then uphill, I exited from under the bridge at around 235 topping out at 272 just at the point that the track starts to rise and dropped to 270 as I crashed into the barrier at the end.

As far as track topography is concerned I took the car and parked it every 100 yards or so to see in which direction (if any) the car would roll downhill - it appears that the first 15% of the straight is slightly downhill, the next maybe 50% is dead flat and the last 35% (till the bridge) is uphill with the net of the straight being uphill as I can point the car backwards under the bridge and coast through the end (beginning) of the straight at around 30MPH.

Alright, off to France.
Running forwards topped out at 275, running backwards reached 280. As opposed to the Nurburgring, here there is more than enough track length so I had sufficient time to brake for the turns. I didn't do the coasting test here simply because the speed difference was relatively minor.

Now on to GT4-land.
Like the Wind:
I let the other cars get a half lap ahead (to eliminate any aero effect) and moved the car up to the start line. I held it with the brake, floored the throttle and the side-stepped the brake.

Max Speed:
In order to minimize variables I used the same starting technique as above once the timer started.

The speeds were as follows (Like the Wind/Max Speed):
At the trees - 290/294
Exiting tunnel - 350/354
Top Speed - 367/370.7

Again, to try and eliminate variables the above speeds are the average of two runs at eack track (well. it's the same track but you know what I mean). I ran Like the Wind, then two Max Speed, and then Like the Wind. And while the speeds are averages the variations in the two runs at each track were less than 0.5MPH so they were consistent enough that the 4MPH difference is real.

A few last points.
The 'Ring and La Sarthe speeds were all in fifth gear without NOS. These speeds were power limited - a longer track would make no difference - except for backwards Ring. But here, given the rate of acceleration it's doubtful the car would go much above 280-285 given unlimited track length.

I timed the acceleration from 250MPH to 270MPH; at the 'Ring (backwards) and both directions at La Sarthe this took between 7 and 8 seconds (well, not actually seconds, I was counting "one one thousand, two one thousand,..). At both version of the test track this took just under 4 seconds.

Top speed without NOS at Test Track is 315MPH (gearing-limited in fifth) and is power limited in sixth to around 305MPH.

So, conclusions.
1) GT4 is not the real world (yeah, I know, that's obvious).
2) The real tracks are probably closer to the real world than Test Track. To be able to go 329MPH (my no NOS record in the TS020) with 1150HP in a massively dowforced road race car does not seem to make sense. Just look at the Honda F1 team struggling to hit 400KPH at Bonneville (I know its an open wheeler with horrible aero and maybe 900HP, but still..). The only other example I know of with known power is GM's 750HP long-tail, supper slippery Aerotech that AJ Foyt drove to 266MPH back in the 80's.
3) The two instances of Test Track are slightly, but measurably, different. In addition to the speed difference, in Like the Wind I can run up on the banking (although it is slower) while in Max Speed I go sliding up to the guardrail.
 
originally posted by Leonidae
I give up on my project car for a change. I couldn't get more out of it that 295mph. and before you ask what it was, I tell ya. Option Z aka Rice-O-Rama
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That was the same car I was trying. I couldn't get much faster than that either.
 
2078TM
(I did not attempt to make the turn - I just wanted to see how high the speed would go)
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Evil person, I made sure my R8 took no damage at all when testing at the Nordschleife - my arse took a lot of damage, but apart from that :lol:

But on a more serious note, well done. One thing your test doesn't take into account, however, is the actual top speed possible at each 'venue'. Testing to top speed without NOS is all very well, but unless you try to reach flat-out speed using nitrous we don't really feel the massive difference in the surfaces. Try taking the Nordschleife straight's turn backwards without nitrous and then with if you want to see what I mean. So, my tests are with maximum possible power, but it's all academic as there's no question whatsoever of the Huandairies being anywhere near as good as the Test Course for speed testing - and even if it was, we couldn't use it because it's inaccurate.

DE
 
DE you're right regarding max speed at each track although I did spend some time the night before to reach 324 at La Sarthe.
Somewhat lost in this, however, is the TS020's ability around the whole track - Crimson's 2:48 lap video (which started all this) and my own lap at 2:47 and change seem somewhat shocking to me in that my car's setup was geared to top speed and handled like fecal matter (VERY unstable under braking) around the rest of the track yet would rank 13th on the Leaderboard and only 8 seconds of the record at that track on my only flying lap.
 
Here's my first attempt at 300mph.

Toyota GT-ONE, no nitrous, 302.03 mph
 

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Hey guys

I've been trying to push my AMG Mercedes CLK-GTR through the 300 barrier but the highest I've managed is 278, I'm not the best when it comes to setup's, so I was wondering if you could give me some help...

Anything to do with downforce and/or gearing would be a great help!

If I'm being stupid and there's no way it'll reach 300, please ignore me! :dopey:
I haven't been able to look at the Leaderboard so I'm not sure if it has already been reached!

This would be a massive acheivment for me!

Thanks again đź‘Ť
 
Dark Elite
GT4_Rule, I've not actually checked this but as far as I know the Huandairies Straight (let's name it properly) has almost no elevation change at all until the right kink :p it's an illusion

DE
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So are you telling me the supposed "downhill" view is an illusion? :nervous:
 
+ REP for that one:tup:

Nice results, I haven't been up to much, just beating the hell out of my DFP, thats all;). I feel like digging out the GT1 to see if I can get a little more out of 'er. I have the day off from school tomarow since its veterans day, so I might give it a whirl.
 
viperpilot
well done BobK đź‘Ť sure you can't get more out of her?

viper
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Heh, thanks....

Oh, I'm sure I can get it to go a good bit faster. The run I posted just was my first run ever over 300 after maybe a half hour fiddling with it. I'm completely new to this tuning for top speed, other than tranny tweaks for GT1 Megaspeed and GT4 Like the Wind.

I'll probably put a good bit of time into seeing just how fast I can get it to go without nitrous, but I also want to see what other cars, if any, I can get over 300 without nitrous. I'm thinking the Audi R8 might be a good candidate.
 
That one, however, was for a completely different reason (though in effect the same) than the one that flipped at the Mulsanne Kink. That one (I beleive it is Dumbreck's car in the video) flipped because air from the TS020 came off of the back of the Toyota and went under the CLR. The one at the Kink (which I think was Webber's second flip) flipped because air got under the car at the crest of the hill just because it was at the crest of the hill, as it flipped during the warm up.
 
I haven't been able to look at the Leaderboard so I'm not sure if it has already been reached!
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Whyever not? :p Click Here, or the link in my signature, or in those of other members. Good luck ;)

GT4_Rule
So are you telling me the supposed "downhill" view is an illusion?
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Along the whole of the straight? Yes. There is still a slight hump downhil after the Kink, but the straight itself has very little elevation change.

I was wondering who would be the first to post that video of the CLR flipping into the trees, I think I have that video myself somewhere...
Toronado
That one, however, was for a completely different reason (though in effect the same) than the one that flipped at the Mulsanne Kink. That one (I beleive it is Dumbreck's car in the video) flipped because air from the TS020 came off of the back of the Toyota and went under the CLR. The one at the Kink (which I think was Webber's second flip) flipped because air got under the car at the crest of the hill just because it was at the crest of the hill, as it flipped during the warm up.
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Exactly what I was going to say. It was indeed Peter Dumbreck's car in the video, A direct quote from Dumbreck - "I was soon pushing for second place and began to near the Toyota in front. We'd been told not to get too close to the cars that were ahead, but I wondered exactly how close I could approach without having to worry about changes in the air-flow. Another CLR driven by Mark Webber had already back-flipped in the warm-up." He'd been hit by a Porsche earlier, so was possibly driving a damaged car. The Toyota ahead started to pull away, so he stayed on the power. But as night was drawing in and visibility fading, he clipped a kerb going into Indianapolis and the front of the car started to lift. The car was thrown 90ft into the air at about 185mph. The wooded area the car flew into had been recently cut back, and if it had not the car would almost certainly have been obliterated against one of the trees in midair. He was carried away in a stretcher, breathalysed in accordance with French law, and then went to watch the rest of the race.

Anyway, nice work BobK, and it's nice to see a good clear capture card photo :)

Leaderboard Updated

DE
 
Cole
Heck, In GT3, I pushed a GT-one to infinity.:sly: (Well, I only got to 999 mph, really). In GT4, though, I only got to 325+.:guilty:
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There are only 2 ways you could have done than in GT3
1- use the wheelie glitch
2- hybrid it

both of which are not allowed in here
 

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