Drag tune tips and base tunes

[nascarfan657]

I'm nascarfan657 and I'm giving out tips and tricks for drag racing as well as giving out base tunes when requested. Drag tuning takes a lot of work for your tune to be affective, and some cars are harder to tune than others. Top drag tunes ARE NOT given out for free here. Work on the base tunes to get a competitive car. A lot of people come to gtplanet thinking that they will get a top tune, but it's not just that easy. Just keep working on your tune and eventually you will have a killer ride. For AWD cars, it's best that the torque is set at 45 in the front and 55 in the rear as it is generally the best distribution. The suspension is completely different than in gt5 because of the new physics model, so work on finding the perfect balance for each car. Fully upgrade the car and change the oil to get the most horse power. The transmission needs a tune called a transmission flip. Set your desired final gear and put the top speed all the way down. The gear amounts vary by car. Most AWD cars usually have the following stats:

1st gear: all the way left.
2nd gear: around wear it is; maybe 4 or five clicks to the right
3rd gear: about 3/4ths to the right
4th gear: far right; about 6 or 7 clicks before the end of that ratio
5/6 gears: furthest right.

For RWD cars with a lot of power, launch in second and follow these ratios

1st/2nd gears: Furthest left
3rd gear: 5 or 6 clicks to the right.
4th gear: 3/4ths to the right.
5th/6th gears furthest right.

This type of flip is generally the same as for cars with 7 gears. You just have the 7th gear furthest right as well. I don't have anything yet for low powered RWD cars, as I have never tuned one myself. I'll have them soon though, don't worry. The fully customizable LSD amounts vary by car. AWD cars have max torque and acceleration with minamum brake sesativity, while powerful cars have low amounts of torque to reduce wheel spin for a better launch. Find the LSD tune that best works for you!

Hope this helps!

 

[michrulejj]

Good tips for drag 👍 I'll say this now LSD doesn't really do much in drag...

 

[c-losk]

I heard that Lsd now plays a roll in drag, have not tried it myself tho.

 

[chris12008]

ummm lsd does nothing sorry i tried many different setups for lsd nd nothing maybe on certain cars but not the ones i tried it on

 

[nascarfan657]

Whoops. I forgot that LSD's don't make that much of a difference. I'm working on a good GT-R Black edition Base tune and a good zzll base tune. I'll have those up soon.

 

[michrulejj]

Whoops. I forgot that LSD's don't make that much of a difference. I'm working on a good GT-R Black edition Base tune and a good zzll base tune. I'll have those up soon.

I hate tuning the B.E. getting the QS right is a pain.

 

[Ax_Bout_Me]

Whoops. I forgot that LSD's don't make that much of a difference. I'm working on a good GT-R Black edition Base tune and a good zzll base tune. I'll have those up soon.

Good luck

 

[Harry6784]

ummm lsd does nothing sorry i tried many different setups for lsd nd nothing maybe on certain cars but not the ones i tried it on

LSD tuning works on certain cars VERY well

 

[Ax_Bout_Me]

LSD tuning works on certain cars VERY well

I know right, I was about to say.........I reserved to saying nothing instead as it works to my advantage. Damn you!

 

[chris12008]

LSD tuning works on certain cars VERY well

 

[Slash]

All the LSD does is allow a change in wheel speed going around turns to reduce wheel hop. It does nothing for going straight. Anyone who can't grasp that is a moron. The same principle applies IRL as well.

 

[YN89]

Automotive limited-slip differentials all contain a few basic elements. First, all have a gear train that, like an open differential, allows the output shafts to spin at different speeds while holding the sum of their speeds proportional to that of the input shaft.

Second, all have some sort of mechanism that applies a torque (internal to the differential) that resists the relative motion of the output shafts. In simple terms, this means they have some mechanism which resists a speed difference between the outputs, by creating a resisting torque between either the two outputs, or the outputs and the differential housing. There are many mechanisms used to create this resisting torque. The type of limited-slip differential typically gets its name from the design of this resisting mechanism. Examples include viscous and clutch-based LSDs. The amount of limiting torque provided by these mechanisms varies by design and is discussed later in the article.

Torque split during operation
An open differential has a fixed torque split between the input and outputs. In most cases the relationship is:

• Trq out_1 = Trq out_2 , where 1 and 2 are typically the left and right drive wheels.

• Trq in = Trq out_1 + Trq out_2 .

Thus the wheels always see the same torque even when spinning at different speeds, including the case where one is stationary. Note, the torque split can be unequal, though 50:50 is typical.

A limited-slip differential has a more complex torque-split and should be considered in the case when the outputs are spinning the same speed and when spinning at different speeds. The torque difference between the two axles is called Trq d .[2] (In this work it is called Trq ffor torque friction[3]). Trq d is the difference in torque delivered to the left and right wheel. The magnitude of Trq d comes from the slip-limiting mechanism in the differential and may be a function of input torque (as in the case of a gear differential), or the difference in the output speeds (as in the case of a viscous differential).

The torque delivered to the outputs is:

• Trq 1 = ½ Trq in + ½ Trq d for the slower output

• Trq 2 = ½ Trq in – ½ Trq d for the faster output

When traveling in a straight line, where one wheel starts to slip (and spin faster than the wheel with traction), torque is reduced to the slipping wheel (Trq 2 ) and provided to the slower wheel (Trq 1 ).

In the case when the vehicle is turning and neither wheel is slipping, the inside wheel will be turning slower than the outside wheel. In this case the inside wheel will receive more torque than the outside wheel, which can result in understeer.[3]

When both wheels are spinning at the same speed, the torque distribution to each wheel is:

• Trq (1 or 2) = ½ Trq in ±(½ Trq d ) while

• Trq 1 +Trq 2 =Trq in .

This means the maximum torque to either wheel is statically indeterminate but is in the range of ½ Trq in ±( ½ Trq d ).

 

[Slash]

That is exactly what I've been trying to get across to people since GT5 came out. Thank you.

 

[Master__Shake_]

To add what YN89 posted, my belief is the numbers located in LSD options are the settings for the torque distribution lock mechanism, in which what torque, accel, and braking input into the LSD locks or unlocks the torque distribution to equal for both wheels. For example, lower number for braking means less braking input is required to unlock the LSD and allow both wheels to split power for which has less wheelspin or, under moderate acceleration in a turn, continue to let the inside wheel get more torque to prevent fishtailing through the apex. In drag racing, when both wheels are more or less spinning the same amount, you can see why the settings wouldn't necessarily affect output as torque split will be equal on both tires. Adjusting torque for more on one tire than the other would only cause spinout or fishtail, and that obviously doesn't help.

If I'm not understanding the physics properly, someone please chime in for this, but this should explain why LSD won't affect tunes on Indy.

 

[ryzno]

Call me odd, but why do people weld their drive axel gears together or buy a locker kit for lsds if they do not effect launch wheel spin?

 

[Slash]

Welded spider gears equals the torque distribution to both wheels. Locked differentials = ridiculous wheel hop around corners


Perfect example

 

[ryzno]

I fail to see why we are talking about turning...

 

[Harry6784]

I fail to see why we are talking about turning...

They have fallen into the pit of trying to apply real life logic to gt6.

I don't care if doesn't makes sense at all, if giving my car extreme rear camber will make me faster, I'm putting 10.0 camber on all my cars.

 

[dr_slump]

Call me odd, but why do people weld their drive axel gears together or buy a locker kit for lsds if they do not effect launch wheel spin?

Because they don't live in GT6.


---
As long as you don't use a stock 0/0/0 diff...

 

[kingking]

Call me odd, but why do people weld their drive axel gears together or buy a locker kit for lsds if they do not effect launch wheel spin?

Haha you certainly haven't driven one welded together sideways effects.

 

[ryzno]

All I'll say is yall missed some posts that were deleted.
No I havent king and Ill repeat myself. It was in reference to diffs in general. And I still dont get why we continue to talk about turning. We drive a 1/4 mile and hit the ebrake, the way we tune the cars they are hard to turn in the first place.

 

[Slash]

Because the LSD allows a change in wheel speed going around corners reducing wheel hop like an open differential, except when going straight both wheels get power with an LSD not just one like an open diff. Not to mention the fact that the LSD is inaccuratley represented in the game to begin with. I don't know why you all make such a big deal out of it. The cars don't have one wheel peels when you launch so don't worry about it. Why is this such a hard concept to grasp?

 

[ryzno]

Cause people want to continue talking about real life. And turning.
As we all know there are many physics/mechanical flaws as far drag raceing is concerened.
Im done with this argument, seems all yall want to do is make me look like a jackass Nothing I said is incorrect.

 

[Bennyklanco]

It starts with the carrier bearings,if you dont have a bearing seperator and a press,or know how to use them,differentials are just another foreign object.Oh and if I get a Premium acct. does that entitle me to use any language I want and pop off all the time?

 

[ryzno]

Yes and they have cake too.

 

[Slash]

Cause people want to continue talking about real life. And turning.
As we all know there are many physics/mechanical flaws as far drag raceing is concerened.
Im done with this argument, seems all yall want to do is make me look like a jackass Nothing I said is incorrect.

 

[Bennyklanco]

We are allowed to laugh out loud on here I suppose,so here goes,lolololol

 

[jdiaz092009]

We are allowed to laugh out loud on here I suppose,so here goes,lolololol

 

[nascarfan657]

Good luck

Yeah I seem to be hitting dead ends. Im almost done with an incredible mclaren mp4 base tune. I'll have it up tomorrow. Once tweaked, it should beat any rear wheel drive car as ell as even some gt-r's if the person that tuned it has not enough pull.

 

[KTalloutdrags]

Yeah I seem to be hitting dead ends. Im almost done with an incredible mclaren mp4 base tune. I'll have it up tomorrow. Once tweaked, it should beat any rear wheel drive car as ell as even some gt-r's if the person that tuned it has not enough pull.

True, a fully tuned and well built mp4 will eat gtrs but some rwd can beat it. For a base tune though it sounds pretty good.

NOW, regarding these LSD shinanagins, why are we sitting here on the forums bickering? Let's pull our heads out of our rears and think, HOW DID WE TEST THIS BEFORE SSRX ON GT5?! We got 2 people, 2 cars, 1 tune, and the one slight change. On an EVEN tree, if one pulls, then that adjustment is better. SO GET YOUR KIESTERS OUT THERE AND CHECK IT! I will do so later as well.