fulcrumdriver:
As I said earlier I'm not a tuning expert or genius, but the way I understand it is that a sloped ride height like that can make the car brake and turn better.
(Taken from Fumes's Tuning Guide from gtvault.com)
Examples:
Lower front and Higher rear ride height - the weight of the car is shifted towards the front. Provides more stability while accelerating. Brake response is faster since weight is already where the braking power is highest. Best for FF, FR and 4WD cars. (Be careful though, if its too low, you will find the car twitchy and liable to veer off in random directions under heavy braking).
Equal front and rear ride height weight is distributed equally. Best suited for MR cars.
High front and Low rear ride height - the weight of the car is shifted to the rear, provides immediate throttle response during acceleration. Braking response will suffer, however, since more weight shifting during braking from rear to front is required. As such, this configuration is not used very often. If used, probably only FR cars would benefit.
What I'm guessing is that the front ride height is SO low compared to the rear, I think its was like 50 / 85, that it made the car very unbalanced.
In some causes a sloped ride height can be beneficiary. For instance I have my R8 slightly sloped at 67 / 70, but in the case of the '04 Pesky it is to the extreme causing an unbalanced setup.
Furthermore, ask Zardoz about the ride height in the Pesky. He was the one who brought this to my attention. (Zardoz was the guy who did the Le Mans comparision which can be found here:
https://www.gtplanet.net/forum/showthread.php?t=61921
Theoritically a sloped ride height should help a little but I think when the difference between the front and rear is as high as 35mm it becomes extreme and malignant to the balance of the car.
*EDIT*
whatupdet:
Your asking the same questions I did a couple months ago. So here I go.
I've never turned off ASM for any race on any car! I don't know what it does and don't know when/if I should turn it off so I've never bothered, yet.
ALWAYS turn ASM off. What it does is that it specifically reduces power to your car when your are turning. The computer sysytem isnt smart enough to tell when you are oversteering, understeering, or steering perfectly. So what happens is that your car will either just be 25% slower through a corner or understeer. Your will ALWAYS be slower with ASM on than off. So always change ASM to 0. If you tune anything in your cars it should be turning ASM off.
Raising TCS to something like 8, is that only good for the Pescarolo or can I set all of my cars to that setting? Or just LMP/Group C?
I would recommend only raising TCS for tire conservation or if you have trouble controlling the throttle output on your cars.
TCS, traction control system, restricts power to tires that are spinning. So what this means is that a car with a TCS setting of 1 will almost always accelerate faster than a car with a TCS of 10. Take any car and change TCS to 10 then drive a couple laps. Next take that exact same car and change TCS to 1. You will notice that the car is accelerating at a much higher rate.
TCS comes in handy for enduro races when you want to conserve your tires. For instance I can make it 7 laps on La sarthe II in my '04 Pesky with R3/R2 with TCS setting of 8. I could probably only make 4 or 5 laps with a TCS setting of 1 or 0.
TCS is also handy with rally races when your tires will slip on ice or gravel for obvious reasons.
I would recommend you to read some tuning guides either on these forums or at gtvault to find out proper TCS settings.
So just spend 10 minutes reading a tuning guide on these forums or at gtvault.com
Taken from Fumes's tuning guide at gtvault.com
The main aim of TCS tuning is to use only enough TCS to stop wheel spin and drifting. No more, no less. This has the added benefit of preserving tire wear, but not sacrificing too much power.
Finding the right TCS figure for a car is a bit of a Trial and Error effort.
Light and More powerful cars will require more TCS. Heavier and less powerful cars will obviously need less TCS. You want to reach a point where the car is not loosing its rear end around slower corners, while still keeping the TCS figure as low as possible to get the most power to the road. On take offs, reduced wheelspin on the spot will increase acceleration.
Fine tuning here can see increase tire wear benefits, but remember the more TCS you use the slower the car is, even if you have better tire wear.
However, when tuning TCS for 4WD cars, it is best to use close to no TCS at all. Since we have 4 driving wheels, there will always be at least one set of wheels with grip even if the other set is loosing grip. By having TCS on at any figure, will just be slowing a 4WD car down.
Always use 0 TCS for 4WD cars.
FR cars benefit the most from TCS.I find anything under 500bhp in GT4 will not need TCS. The weight of the car will also determine the need for TCS. Light cars eg F1, Sprinter Trueno Shigeno, can have TCS at 4 to 6 with great benefit. For heavier cars, start TCS at 3 and tune. You should not need much more than 5, unless you want to conserve more tire wear.
This is not THE rule, just a guide. Tuning is still required.
FF cars benefit from TCS a bit, but not as much as FR cars, since the driving wheels are also the ones that TCS will be affecting. Too much TCS and it slows the car's acceleration and reduces understeer. No TCS and it understeers. So with FF cars, use between 1 to 2 TCS.
Should I leave ASM on only for non-endurance races?
I used R1/R1 for the Super Speedway.
Always turn off ASM. Try some TCS with your pesky and you should be able to pit in less than the AI.
If I forgot to answer anything let me now and I will try. But seriously spend some time to read the tuning guides. Those guys spent a lot of time writing those guides for tuning impaired people like you and me.
Lastly, if you dont want to read the tuning guides you can pick up settings that WILL be better than stock settings at here:
http://www.gtvault.com/gt4/
or here:
https://www.gtplanet.net/guides/index.php/Gran_Turismo_4_:_Car_Settings
Also take a look at these pages:
https://www.gtplanet.net/guides/index.php/Gran_Turismo_4_:_Tuning
or what I read and reference:
http://www.gtvault.com/gt4/tuning-guide/
