I am a tune noob and want to understand the concepts of tuning a car. Please correct my assumptions where they are wrong or need to be adjusted. Most of this information comes from the excellent PDFs in the post: https://www.gtplanet.net/forum/showthread.php?t=135268 (this is also to see if I am understanding what I am reading)
First - the car type/drive train matters.
FF - most of the weight is in the front
FR - more of the weight is in the front but not as much as a FF car
MR - Most of the weight is in the middle of the car to the rear
etc...
The drive type/weight distribution is important in how you will setup the suspension (ride height, spring rates, etc...).
Now for the basic descriptions of the Suspension setup:
Ride Height - How far the car is off the ground. The lowering the ride height helps to lower the center of the car allowing it to turn better, but you have to be careful with just lowering the car. The spring rates, dampers and anti-roll bars all have to be adjusted to work with a lower height (and you can lower a car too far - detracting from performance).
Spring Rates: The springs are what helps the car take bumps without causing the driver to lose control. If you lower the ride height too much without stiffening the springs (i.e. higher values) then the tires can hit the underbody of the car.
Front - The "softer" (i.e. lower value) spring rate helps reduce understeer.
Rear - The "softer" (i.e. lower value) spring rate will helps reduce Oversteer
Is this correct? The lower the spring rate the softer it is - so a 10 spring rate will be soft compared to a spring rate of 20. (i.e. a 10 spring rate would be a passenger car - nice and soft ride, where a 20 would be a race car stiff ride where the driver feels every bump hard - just as an example of the difference between the 2 numbers).
I am confused on the Dampers that is in the PDF versus what is in GT5. Here is what I think is going on:
Dampers Extension the Damper (i.e. Shock absorber) extends with the spring upon hitting the bottom of the bump. The Extension value determines how quickly the damper extends. The lower the value the quicker it extends with the shock causing a softer ride/more body flex in a corner
Dampers Compression This is the opposite of Extension. This is how quickly the damper allows the shock to return from being extended. The lower the value the quicker it will allow the spring to compress make for a softer ride.
In both bases, the lower the value helps reduces understeer on the front and oversteer on the rear, but you must take into account the ride height (you don't want the tires hitting the underbody of the car).
Please correct me where I am misunderstanding the tuning in GT5 incorrectly. I am also going to read up on the LSD shortly and post that here 2.
Don't worry - I am not trying to put you tuners out of business nor start my own shop but it would be beneficial to understand what you tuning setups are really doing for the cars.
First - the car type/drive train matters.
FF - most of the weight is in the front
FR - more of the weight is in the front but not as much as a FF car
MR - Most of the weight is in the middle of the car to the rear
etc...
The drive type/weight distribution is important in how you will setup the suspension (ride height, spring rates, etc...).
Now for the basic descriptions of the Suspension setup:
Ride Height - How far the car is off the ground. The lowering the ride height helps to lower the center of the car allowing it to turn better, but you have to be careful with just lowering the car. The spring rates, dampers and anti-roll bars all have to be adjusted to work with a lower height (and you can lower a car too far - detracting from performance).
Spring Rates: The springs are what helps the car take bumps without causing the driver to lose control. If you lower the ride height too much without stiffening the springs (i.e. higher values) then the tires can hit the underbody of the car.
Front - The "softer" (i.e. lower value) spring rate helps reduce understeer.
Rear - The "softer" (i.e. lower value) spring rate will helps reduce Oversteer
Is this correct? The lower the spring rate the softer it is - so a 10 spring rate will be soft compared to a spring rate of 20. (i.e. a 10 spring rate would be a passenger car - nice and soft ride, where a 20 would be a race car stiff ride where the driver feels every bump hard - just as an example of the difference between the 2 numbers).
I am confused on the Dampers that is in the PDF versus what is in GT5. Here is what I think is going on:
Dampers Extension the Damper (i.e. Shock absorber) extends with the spring upon hitting the bottom of the bump. The Extension value determines how quickly the damper extends. The lower the value the quicker it extends with the shock causing a softer ride/more body flex in a corner
Dampers Compression This is the opposite of Extension. This is how quickly the damper allows the shock to return from being extended. The lower the value the quicker it will allow the spring to compress make for a softer ride.
In both bases, the lower the value helps reduces understeer on the front and oversteer on the rear, but you must take into account the ride height (you don't want the tires hitting the underbody of the car).
Please correct me where I am misunderstanding the tuning in GT5 incorrectly. I am also going to read up on the LSD shortly and post that here 2.
Don't worry - I am not trying to put you tuners out of business nor start my own shop but it would be beneficial to understand what you tuning setups are really doing for the cars.
