3rd gear problem

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SilverFire

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Hi. First, I don't know if this should be in the tuning forum because I'm not looking for a tune, more of just an answer. I own a lot of high-powered cars (Formula Gran Turismo, Mazda 787B, etc.) and when my car enters 3rd gear, I'm using a lot of tire wear and it feels like I'm in a rocket. If somebody can explain why this is happening, that'll be of great help. Thanks
 
I'll try to make this simple.
The reason 3rd gear feels like it is pulling like a rocket, is because 3rd is normally close to a 1:1 ratio. Meaning That the Engine and the Trans. are moving at/around the same RPM and the full potential of the Engines power is being produced at the Wheels.
That is also why 1st and 2nd feel real Tourqey the Trans is multiplying the Engines Torque via Gears.
The opposite goes for 5th and 6th, the car will feel slower because when the ratio drops below 1:1 eg... 1:0.975 you are losing .25% of the Tourqe being produced by the engine.
I hope you can understand what I said.
 
Do you use TCS? I believe traction control only works at lower speeds also. Just a thought.
 
SilverFire
I do. But I've only got it set to one so that I'm able to still drive fast.
Click to expand...

With the high power cars you got to drive like there is an egg under your gas pedal.

I'm not a pro at circuit tuning, all I can recommend is adjusting suspension settings, to help deal with tire wear.
https://www.gtplanet.net/forum/showthread.php?t=135268
I know they are for GT4 but alot of the principles are the same. They helped me out some.
The one on the top is the one you want to read right now. But I do recommend you read both.
PS the download links are safe, its a Thread created by Staff (Scaff) here.
 
ryzno
With the high power cars you got to drive like there is an egg under your gas pedal.

I'm not a pro at circuit tuning, all I can recommend is adjusting suspension settings, to help deal with tire wear.
https://www.gtplanet.net/forum/showthread.php?t=135268
I know they are for GT4 but alot of the principles are the same. They helped me out some.
The one on the top is the one you want to read right now. But I do recommend you read both.
PS the download links are safe, its a Thread created by Staff (Scaff) here.
Click to expand...

I'll read both when get done posting this. I understand that with high-powered cars, we need to control the accelerator to prevent lots of tire wear and even with the TCS set to 1, I still try to control the accelerator on my own sometimes. The point I'm trying to get at is when I enter 3rd gear, the TCS doesn't reduce the amount of gas that I'm applying. It doesn't count it as wheel spin. I think you guys had already answer my question. I may have not seen it or fully understand.

PS- I know how to tune my cars, so I don't think that would be the issue.

Edit: ^ Sorry if this is kinda rude. Couldn't find any other way to say it.
 
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SilverFire
I'll read both when get done posting this. I understand that with high-powered cars, we need to control the accelerator to prevent lots of tire wear and even with the TCS set to 1, I still try to control the accelerator on my own sometimes. The point I'm trying to get at is when I enter 3rd gear, the TCS doesn't reduce the amount of gas that I'm applying. It doesn't count it as wheel spin. I think you guys had already answer my question. I may have not seen it or fully understand.

PS- I know how to tune my cars, so I don't think that would be the issue.

Edit: ^ Sorry if this is kinda rude. Couldn't find any other way to say it.
Click to expand...

No offence taken. With the TC at 1 its very weak and cuts off at lower speeds. Same style as cars irl that have adjustable settings.
 
iamsupernasty
No.

TCS activates when the wheels spin; regardless of the cars speed.
Click to expand...

Ok. I haven't used TCS in so long that I forgot.

I just was remembering when I used a controller to play and used TCS, I had problems in high powered cars when I hit 3rd gear. I thought I remembered reading that TCS only worked at lower speeds. I'll go back and test it out.
 
Hehe. Guess it was my tune-up. Whoops! Kinda messed up on my part. The initial torque was set way too high. I turned it down. I still get some wheel spin but not as much. Thanks everyone. :)
 
ryzno
I'll try to make this simple.
The reason 3rd gear feels like it is pulling like a rocket, is because 3rd is normally close to a 1:1 ratio. Meaning That the Engine and the Trans. are moving at/around the same RPM and the full potential of the Engines power is being produced at the Wheels.
That is also why 1st and 2nd feel real Tourqey the Trans is multiplying the Engines Torque via Gears.
The opposite goes for 5th and 6th, the car will feel slower because when the ratio drops below 1:1 eg... 1:0.975 you are losing .25% of the Tourqe being produced by the engine.
I hope you can understand what I said.
Click to expand...
3rd gear is normally not close to 1:1 in such cars. It also wouldn't explain why he doesn't have such problems in lower gears.
 
iamsupernasty
No.

TCS activates when the wheels spin; regardless of the cars speed.
Click to expand...
I stand corrected. After doing a few Tests, because I havent used TC in a while, the amout of throttle cut is increased as the TC lv. increases.
dr_slump
3rd gear is normally not close to 1:1 in such cars. It also wouldn't explain why he doesn't have such problems in lower gears.
Click to expand...
Again I stand corrected. I did do a little testing though.
I'm sure the LMP's are different but I used the Premium Audi for the tests.

The car:
'06 Audi R10 TDI Race Car
Broken in/Stock settings

The ratios:
1st: 2.863
2nd: 1.771
3rd: 1.220
4th: 0.894
5th: 0.696

The Tests:
1st test: no TC
2nd test: TC lv 1
3rd test: TC lv 5

The results:
1st run:
No TC; As soon as I did the first run I realized the car stops wheel spin as soon as it enters 3rd gear.

2nd run:
TC lv 1; At launch the throttle was cut about 10-15%. 2nd was around 10%. 3rd no throttle cut.

3rd run:
TC lv 5; At launch the throttle cut to almost 50% and caused bogging. 2nd throttle was cut 25-30%. 3rd same as 1st and 2nd run.

My thoughts:
I do not believe TC(at lv1) would make a difference in tire ware in 3rd gear.
What I believe is the problem is the ability to remain full throttle in third gear with a close to 1:1 ratio while still multiplying torque. That is causing the extra tire ware.(from acceleration as the OP claims)
And they do feel like a rocket in third:dopey:
I still believe its down to throttle control and finding the fine line in tuning of tire ware and handling.
 

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