Forza 6 Tuning

"JAREAL" (jareal) 01/05/2016 at 12:52 • Filed to: None

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I almost never tune my cars in 6 or any other Forza and I was wondering what you guys thought of the importance of it. Especially diff settings, particularly the differences between stock, sport, and race diffs, what kind of cars would a race diff benefit the most? Also how much do other settings like downforce and suspension and roll bar stiffness matter? I’ve played all the Forzas and race on Pro/Unbeatable in career mode, so I consider myself a veteran but have never tried tuning much

TheHondaBro > JAREAL 01/05/2016 at 13:03

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I always tune my cars, especially since I play with all the assists off and a good tune can put me ahead of the pack quickly. Before I choose a new car to race, I do the necessary upgrades, and I take it to a track of my choice (I choose Sonoma because it’s a good handling benchmark), and I spend about an hour tuning it.

Race diffs can do wonders on all sorts of cars, but the car that would benefit from them the most are FWD and AWD cars.

In the tune menu, there are paragraphs explaining what does what. You can use those as references. For example, if you’re trying to eliminate oversteer, you may go to the suspension settings and soften up your rear springs.

Noah - Now with more boost. > JAREAL 01/05/2016 at 13:06

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Someone on Oppo did a comprehensive tuning beginners guide:

http://oppositelock.kinja.com/how-to-tune-a-…

AntiSpeed > JAREAL 01/05/2016 at 13:06

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I don’t play Forza, but why not test it out for yourself? Pick one track and one car. Do 5-10 laps unmodified, record your lap times and thoughts on performance. That’ll be your baseline.

Pick one thing to change (whether it’s putting on a new part or changing some settings), go back out and do another 5-10 laps. Record lap times and thoughts, then compare them to the baseline.

Repeat that over and over changing different things and comparing them to the other things you’ve changed. Eventually the picture will become more and more clear.

It might seem tedious, but just think of it as another way to play the game.

MontegoMan562 is a Capri RS Owner > JAREAL 01/05/2016 at 13:07

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I did a pretty sick tune recently on a Miata for one of the spec races, it was an uphill point to point race and I was getting smoked and was out of room for upgrades. So I tuned it for acceleration because you never really get up to high speeds on those races.

I won by a landslide.

Rainbow > JAREAL 01/05/2016 at 13:16

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Always buy a race diff. You can pretty much set it fully locked or fully open and anywhere in between. That’s pretty much the most important part for tuning in my opinion..

I also lower nearly all of my cars as much as possible. I’ve only ever had one that would bottom out too much, so for the most part it’s just a lower center of gravity which is all sorts of good.

Snuze: Needs another Swede > JAREAL 01/05/2016 at 13:34

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Tuning the diff helps, but another big one is changing your gearing, especially your final drive ratio, if you can. A lot of cars are geared to run way, way faster than they ever can, or should.

I haven’t played Forza 6, so I don’t know the cars in it, but I can give you a real life example: My Cruze has a .744 6th gear ratio, a 3.944 final drive ratio, 26.15” tall tires, and redlines at 6500 rpms. There’s calculators online that will tell you the theoretical max top speed, and for my car it’s 172 mph. It only makes 140HP, 180HP with a basic tune. That’s still nowhere near enough power to get to 172MPH in that car.

So going back to Forza, raise the final drive ratio to something like 4.25~4.5 (for my Cruze example). This will lower the top speed down to the 150 to 160 range, but the shorter gear ratio gives you faster acceleration. Be careful not to overdo it, though - because each gear is effectively shorter, you shift more frequently, and during the shift you aren’t putting power to the ground, meaning you’re not accelerating. It’s a careful balancing act.

Also, I’ve found some long tracks, like Le Mans have high speed portions and occasionally I’ve had cars bump the rev limiter in top gear. Dropping the gear ratio a bit gives higher top speed. You lose a bit of acceleration, but sometimes it’s worth it for the few extra MPH on a long, high speed burn, which allows you to sail past your competitors.

Needmoargarage > JAREAL 01/05/2016 at 13:41

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I pretty much only play on Unbeatable with assists off, so tuning makes a world of difference to me. Without rewind, ABS, etc. I have to repeat a lot of races and play with tuning then.

I think the most important have been messing with the balance of tire pressures and suspension spring difference from front to rear to get the balance between under/oversteer that feels right to me. I don’t mess a whole lot with swaybars and downforce unless I can’t get what I want out of spring stiffness and shock absorber damping. I usually stick with the sport diff. Being able to modify your final drive makes a huge difference as well.

Pretty much all my cars are all about being lightweight and handling well. I usually can’t modify the powertrain much so I get passed on the straits often.

Snuze: Needs another Swede > Needmoargarage 01/05/2016 at 13:48

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Have you read any racecar engineering books? Because you’re doing it 100% right. Springs and tires first, along with chassis mods (bracing, roll cages, etc.). Sway bars are a fine tuning tool if you can’t get what you need from springs.

Needmoargarage > Snuze: Needs another Swede 01/05/2016 at 13:51

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Haha nope. I like to think I do it in Forza because that is what has worked with my own car on track.

Unfortunately, I don’t have 95k credits to spend on my real car. :(

Snuze: Needs another Swede > Needmoargarage 01/05/2016 at 13:53

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I’m really impressed then. Almost everyone I know runs out and buys big, fat swaybars for their cars as their first suspension mod. I almost fell into that trap years ago, but ended up not buying anything and selling the car.

camaroboy68ss > JAREAL 01/05/2016 at 13:55

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Only tuning I have done so far on Forza 6 is drag racing setups. I usually just do add parts to stock cars for road racing and then just man handle the thing around the track.

Needmoargarage > Snuze: Needs another Swede 01/05/2016 at 14:08

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Thanks...I learned the hard way.

When I was young(er) and dumb I put a big fat sway bar on the front of my car and thought I was tuning the handling. I found how how much I knew about tuning when I took my first spirited corner and understeered straight into the curb. I can laugh about it now but man, that sucked.

JDIGGS > JAREAL 01/05/2016 at 14:40

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You have to be able to tune to keep up with the best, however the parts configuration is more important. Unfortunately in this game certain cars with certain parts combos are unstopabble, so in an inferior car no tune will help.

The tire pressures seem to make sense as you it’s better to run more pressure in lightweight cars? Also the psi relative to street cars or race tires reallly makes no sense to me. My understanding is an imsa gt tire is not going to ever be over 25 psi cold and probably less, where street tires I’ll set between 34-8 depending on rim size / car weight. To me the alignment settings make sense until you hit the toe. Diff is usually something that needs adjusting as well. In my opinion one of the single most important adjustments to feel are the sway bars.

My guess is if you get tuned cars you’ll speed up some, they can generally be improved upon to get on the gas early. That being said I love me some cycled production.

If you wanted any specific cars I know of quite a few good tunes, I suck at tuning despite being a forza addict since 1. I also use sim steering so a tune really has to nice for me to operate properly.

Recently been running a lot of private lobby cycled prodo with of course clean veterans. If you’d like to join let me know and I’ll add you as a friend. This is pretty cool because It’s been informal racing that is good. Normally I just wait for my league races for that because public is el garbago.

Baeromez > JAREAL 01/05/2016 at 14:46

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Oh my god, dude, you’re missing out on a HUGE chunk of the game if you never tune your cars. The stock tunes are garbage compared to what you can achieve with a little tweaking.

I always start by using this tuning calculator as a base tune and then going from there. I always raise downforce to maximum and bottom out the ride height as low as the sliders allow. The next step is to test drive the car and adjust the gear ratios.

You can achieve radically higher levels of grip, balance and acceleration by doing these easy tweaks, and the best part is that tuning costs nothing in terms of the car’s performance index. In fact, several parts like aero mods and diffs actually lower the car’s PI while actually making it faster.

pjhusa > JAREAL 02/07/2016 at 22:44

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Same here. So I’m amazed to see so much in support of it, and what I’ve missed.

fiftinch > JDIGGS 07/19/2017 at 09:18

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For all that don’t want to deal with tuning have a look at QuickTune FM6:

http://fiftyinch.com/quicktune

Calculates perfectly balanced and competitive tunes, no tweaking necessary!