Differential settings?

Honestly I’m sure there was some time made up but I was paying more attention to the cars attitude and lines through the corner and exit. I’m not the fastest driver but I tend to be very consistent with my times within a few tenths. I tend to drive conservatively brake a touch early and roll on power a bit later than needed, witch means I always can find extra time when I push harder.

A decent rule of thumb, will obviously have the exception here and there. Take the average if you want a place to start.

Front engine RWD
Accel = 25% to 60%
Decel = 5% to 25%

Mid engine RWD
Accel = 20% to 50%
Decel = 10% to 50%

Front wheel drive
Accel = 80% to 100%
Decel = 5% to 12%

All wheel drive
Front Accel = 25% to 40%
Front Decel = 0%
Rear Accel = 65% to 100%
Rear Decel = 5% to 30%
Split = 60% to 75%

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This is SPOT on. With the exception as Worm stated. If you are arguing this then you are either using more assists or slower out of corners… period. The thing is if you are using traction control and whatnot you may not “feel” the HUGE difference between 25% and 90%. And that may be causing this argument. There are 2 driving styles with all the training wheels off. Slow and Fast. Otherwise with all assists on, you can jack up the motor in almost any car and just throw them into corners and worry about what will happen later. Turn off your TCS and get on the gas a little coming out of some corners. Then go ahead and turn down your rear diff til it works right. Right where Worm said it would.

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Wow thanks Worm that will be a great help!

Keep in mind that the diffs are merely one component of the entire system of chassis parts.
You must tune the parts to compliment each other in order to maximize their potential.

You can’t just slap someone else’s values on your car and expect them to work, it’s a more elaborate solution than that.

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For RWD set up the accel to get the corner exit power down you want, and set the decel to get the turn-in behaviour you want. Very high settings for accel and very low settings for decel generally favour oversteer behaviour. Some people like that, some people don’t. I always configure diff for neutral corner entry and early power down on track out. Generally speaking being able to trail brake is a sign you are in the sweet spot for decel. If the back is breaking loose you have too little decel, if the nose doesn’t want to turn into the corner, you have too much. Worm’s settings are a very good rough guide, although there are plenty of exceptions to every rule.

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+100000 worm!!!

look you can go to any of the open source threads and see that low diff settings are the norm and the reason why is that they work for just about every car… its cool to have an opinion but to be disrespectful to one of the many great tuners on here (not only that he is a mod!!!) along with all of the others who use the same settings he posted earlier is just absurd …

for future reference use the what worm posted above as a starting point and tweak from there until your car has behaving through the corners

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Fuerdog, you are wrong

Just let them go Worm, I don’t think they will listen our reasoning lol.

They can tune however they want, it bugs me that they tell newcomers to follow in the footsteps to doing things wrong and will argue in the face of everyone who is fast.

My times and my tunes speak for themselves. So do yours and lots and lots of other people. It is nice to see that some people get it though!

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No, I’m not wrong.

What you are saying that I’m wrong about is that if you slap just ANY combination of specific values on a tune then the car will handle fine. THAT is wrong.

Here is EXACTLY what I said…

If I was the one running around sharing fully locked or open diff values with everyone, and you decided to use those values on one of your cars, would it work well?..Absolutely not.

Again…

Did you even read into the context of my posts?

Let me restate some facts here for clarity…

The value ranges you shared are fine, and fall nicely into some of my own custom tunes with no problem.
In fact the only differences we have is I tend to run slightly more aggressive rear/decal values.
I’m not disputing your tuning prowess either. I am not attacking your ability to tune, or your ability to drive faster than me. I never stated or implied otherwise.

Rabbit0317 says…

I know he isn’t, and youre right, there is no set value that is perfect. You have to trail and error tune to find what will work.
I don’t know how you guys implied otherwise,…all I’m saying is that a specific 85/45, or 90/32, or whatever…will NOT be applicable to every car without adjusting some other components. And even then you are probably sacrificing the ability of the tune if you try to do so.

In my own defense…
When did I become the enemy to tuning?
When have I ever taught someone wrong? I have only offered tuning advice based on doing your own trial and error tuning, starting from an established base tune, and reinforced the idea that each tuneable part interacts with the overall tune as a whole. Experimentation is good, and the results will prove themselves.

  1. You aren’t.
  2. Teaching and implying are 2 separate entities.
    The calcs, (yours, slave munkeys, whomever elses) offer a good starting point to newer players. They offer a balanced tune to newer players.
    They do not offer the correct way to build a car. They do not achieve the most out of any given car for any given track. While your calcs, theories are sound, unfortunately it simply does not work this way in forza.

Forza has 2, constant knowns, and always has:
1). there is a right way, and every other way to build a given car for any track. No matter what you do, there is 1 build that will always be faster then every other.
2) There is set values, irrespective of the other parts that work better then every other.

You can do everything you like, the way you like, but you simply will not be competitive with those that do it the right way. That being the way that forza favours.
The values provided generally nullify/exploit the physics engine and the cars go around on rails. The same values simply will not work in real life, and you wouldnt do it.

you wouldnt slam the bump on a car, but it works in forza.
you would never go to extremes on rollbars, but it works in forza.
you would never run stock tyres on a car during a race, but it works in forza
etc etc.

This is the point being made.

You make perfect sense.
Once again, I almost completely agree.

If I will never be the fastest, and what I do differently doesn’t matter, then I probably shouldn’t even play the game.
Forza is a game of finding unknown but specific values and relationships, sure, but the human element makes it more diverse than just that.

Not every player drives or tunes for the sole purpose of being the fastest,…some people tune and drive to just enjoy…driving, or racing, or whatever. Just because their pursuit of equational perfection does not match your own does not make them wrong,…it simply makes them DIFFERENT.

I know I’m not the fastest or the best, never have been, never will be. I tune and drive the way I do for my own enjoyment, for my own improvement of effort.
My calculators have never been intended to create the fastest tunes, they are merely a DIFFERENT option for enjoying the cars.
They very fact that the calculators are so generic makes them impossible to be competitive with high end custom tunes.

So if the average, run-of-the-mill non-tuner can gain comfort, ability, or enjoyment from a DIFFERENT set of tuning variables, does that still make them wrong?

If you guys want to chase perfection, then be my guest, I’m just here to enjoy myself.

Yes.

When you sweep a floor with a broom, do you sweep in a circular motion because its enjoyable, or do you sweep from one side to the other because its faster and more efficient and the right way to do it?

You sweep from one direction, I sweep from the other, the floor is still getting swept…and yet somehow I’m still doing it wrong.

So the answer is NO, it doesn’t. Because you don’t get to decide how I enjoy my game.

@Worm,…do you always fail at basic reading comprehension?

I NEVER said you were wrong.
I NEVER said I was right.
I said I was DIFFERENT.
But since DIFFERENT = WRONG to you guys, and you seem to be the sole judgement on what is right, wrong, and what everyone seems to want, then so be it.

Its obvious to me now that nobody can benefit from my slow wrongness, thanks for setting me straight.

@Dust You forgot something.

@fuerdog If you were to spend some time tuning an awd car and get it set up really well, and then put the same settings on another awd car, you would have a very good tune on both cars. If you were to do fwd to awd or rwd the settings likely won’t work. This has worked since FM2. Tuning in FM is more exploiting the physics than it is actually tuning like real world.

I disagree.
Forza’s physics, while generic in nature, have other variables modeled into cars that make even the closest of identical of stats/build/data tangibly different. So while both cars may be good performers with the same identical tune, the potential for one of them to be superior in some minor fashion would be present.

Agreed. GT, Forza, PGR, Dirt, Grid, Toca, iRacing, Live For Speed,…every driving game ive ever played for that matter.

For someone who isn’t chasing perfection, you certainly want to argue some tiny detail. I’ve yet to drive a perfect tune my own or otherwise. For the record personally I think your calculator works better than the others. I used yours at the beginning of FM2. But since FM3 I think calculators aren’t as effective due to the importance of the build and the fact the FM series has made tuning more track specific then in FM2.

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Yep,…I miss the FM2 days when good tunes were more relevant.

Most, but not all, of the “other” calculators were initially derivatives of my own spreadsheets that either become too complex, or too inaccurate with changes in the series.

Attention to detail is a trait I picked up in the Marines. Not trying to nit pick or argue, just standing my ground.