Top Speed Parameters; interesting results! - Now with summary

[StrikeEagle737]

Hi Everyone. GREAT POST

(forgot to mention that I don´t speak english as my native language. Please understand sure mistakes )

Let me add a couple of things to the discussion. (But the most important is point 4)

1) Lower ride height AFFECTS Top Speed IRL. Take, for example, the Veyron and its Special Top Speed Key

2) Aerodynamics do the same with Top Speed. And again, you have the example with the Veyron.

3) Sticky Tires do not add drag. Quite the opposite. At extremely high speed you need a lot of grip to avoid the tire sliding. What add LOTS of drag are wide tires. But you can´t modify that setting in GT5.

4) GT5 DOES NOT PROCESS FLUIDS. (And the "air" its a fluid, after all). Its as simple as that. I remember reading and interview to Kaz in wich he specifically mentioned that FLUID PROCESSING was out of GT5 because of limitations in the PS3 (or any actual console out there). If I remember correctly (pretty limited internet here at work) it was after his time developing X-2010 in Red Bull HQ and testing its F1 simulator.

So, without fluid calculations, drag/wind/ground effect just do not exist as a factor that could be simulated in any way but with fixed parameters. And that why suspensions work in really strange ways doing those speed tests. I remember too the CLK-GTR flying in LeMans, and that won´t happen in GT5 because there is no "real" air in the track.

Bye !

pd. I´ll try to find the interview. It was here, on GtPlanet.

Astro_BS-AS

Fluid calculations would be nice, but it would take a lot of computing power to solve the partial differential equations in real time. Maybe it will be part of the GT6 game engine for PS4.

uga, I have read around a bit, and your method to obtain higher speeds through different downforce settings is EXACTLY what I thought it would be, namely a fluke with certain cars.

The trick is certain cars can lift their noses from the ground with max rear downforce and minimal front...resulting in higher speeds. Now while the lifting of noses definitely occurs in the real world (CLK-LM anyone?), it does NOT result in greater speed, just greater flying ability.

So while downforce at itself is working exactly as it should in GT, there is a bug partially lifted driving.
It clearly doesn't work on the Nomad Diablo, and I'm glad for that too....makes for much more accurate and proper testing.

If the nose of the car lifts up, there would be higher pressure under the car which would decrease the normal force thereby decreasing friction and increasing top speed.

 

[GTxen]

There is also one thing which makes car faster and you didn't mention it yet. This is about 4x4 cars, if you change torque distribution from stock settings to 10/90 car will be faster.
One more thing I noticed today, when I uninstalled rear wing from my aventador it became faster, max speed increased from 397,1 km/h to 397,8 km/h

 

[Rudenut]

How do you manage to completely ignore the parts that come BEFORE the adding of downforce, where I show that extreme ride height ALONE increases speed already?

I'm not saying there is nothing wrong with downforce - it shouldn't be adding to the speed.
What I am saying is, it's not the intrinsic cause of the problem.

All cars have a stock level of downforce...it would be nice if we could see it. So you cannot observe the effects of that extreme suspension setup ALONE.

 

[Morgoth_666]

All cars have a stock level of downforce...it would be nice if we could see it. So you cannot observe the effects of that extreme suspension setup ALONE.

If this is true(which it should be), then might we see the reverse effect when using a car that naturally produces aerodynamic lift? That is of course assuming such cars are modeled correctly.

 

[Morphisor]

All cars have a stock level of downforce...it would be nice if we could see it. So you cannot observe the effects of that extreme suspension setup ALONE.

If that is the case, indeed the suspension wouldn't be the problem in this case.

But can you support that claim with evidence?

 

[BWX]

How do you manage to completely ignore the parts that come BEFORE the adding of downforce, where I show that extreme ride height ALONE increases speed already?

I'm not saying there is nothing wrong with downforce - it shouldn't be adding to the speed.
What I am saying is, it's not the intrinsic cause of the problem.

Did you read first sentence of my post?

''I did look closely. It amplifies bug when you turn up rear downforce. Problem IS downforce. It is only ''already there''because downforce is ''already there'' when set to a lower setting. ''

Now, explain how I'm wrong, and why do you ignore the post from Z1-AV69?

I like all the research you did, but why can't you see what is obviously a known bug.. This is not new man.
edit..
Just think what you want. There's no point trying to get you to ''believe me''..