Excessive understeer on road races

Theres definitely more understeer than in past games ive had to add a lot of negative toe to both front and rear to many of my cars along with brake balance set to the rear more (its backwards in the game again like forza 5 so front and rear are opposites). Im not sure if its a good or bad thing though for this kind of game. On one hand it can be tuned out but on the other if you dont know how to tune youre gonna have a problem.

The only tips i could give if you dont have or dont want to tune is to brake earlier and to also totally let off the gas mid corner to fix your direction. As soon as youre pointing where you want hit the gas. Forza 6 also put more emphasis on throttle control and tuning the differential was more necessary than in the past.

I know it is an old thread, but couldn’t resist sharing my experience.
My first Forza game is FH3 only, and initially I played with the xbox controller and it had lots of under steer.
After upgrading to a racing wheel (Thrustmaster TX) it is not that much of problem. I play with all assists off except ABS on.

On RWD cars I have to tune a bit for understeer, with rear toe in and rear ARB reduced.
May be the issue lies with the way FH3 treats a controller vs a steering wheel. My 2 cents.

Did you try simulation steering with the controller? There are also some controller settings that tweak deadzone and the input ‘curve’ as you increase stick input.
I’m just curious if wheels actually get a different handling model.

Actually I did not try simulation mode with xbox one controller. I quick moved to a non-FFB wheel (TM 458 spider), and then in couple of weeks upgraded to TM TX .

Initially had trouble controlling cars with TX wheel, when they started to oversteer at the exit of the corner, with simulation mode turned on, and while trying to fix it ,
I read that , that simulation mode was mainly meant for XBox Controller , and using Normal steering mode is best for a wheel. (I have been playing that way since, and intensity of that particular problem has reduced for most cars. Of course, tuning each setup with help of Forza Tune app helps immensely. These days I don’t drive a car in FH3 without tuning it first. )

Coming back to the point, may be simulation mode with some tuning will help with controller, but I never tried again.

Try removing the intercooler if it’s equipped. I find this helps prevent understeer in the first place, even on mid engine cars for some reason.

Wow, just wow.

It may be an amazing discovery. Does intercooler interfere with steering hydraulics ?

An intercooler cools the air that is heated by the turbo/supercharger before it enters the engine intake. Hence me WOW comment.

Oh, and all cars IRL are built to understeer from the factory. Way easier to control. Understeer is basically exceeding the traction limit of the front tires. You have 2 options to get back below that limit. Change the limit via tuning or slow down. Your choice.

you also mentioned “street races” which usually means wet and at night.
wet causes less grip and at night causes late braking and late turn in.
all of which induces under-steer!

I haven’t really noticed an issue with understeer, the only time I found a slight problem was when I was overdriving the car trying to keep up with the AI, which clearly don’t follow the same physics as the player. I think that is the biggest issue here.

Have recently been practicing alot more on simulation steering 900dor on the wheel, have even started beating my personal bests on drift zones that I had previously set using 270dor, it feels very satisfying 900 degree sim steering drit zone

I find there is a little more understeer than before but because I try and follow the drivatar’s speed and racing line through corners only to realize they don’t follow the standard physics… hence the understeer

edit - just noticed buddy above me said the same thing lol

All understeer mentioned in this thread can be tuned out.

It is not a build issue, not a normal or sim steering issue.

Not a physics issue for us or the drivatars.

If the car understeers it might be driven too fast but most likely the tune needs some work.

Not saying it is a physics issue

I am saying if you try and drive like the drivatars (racing line, braking points, etc), you end up going into the corner way too fast creating the understeer

You should not have to ‘tune’ a car to get it to drive normally, but like you said people are probably taking corners too fast

Default tunes in the game are understeer tunes so unfortunately in this game you do need to tune even for a neutral balance.

The main issue though is people are scared of using extreme settings eg max rear anti roll bars and zero decel diff. Both work wonders.

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One tuning option in the game I don’t normally use because I’m not sure of how it works is the front anti-roll bar. It doesn’t tell you how to tune with it in the little side description. So does it work just like the rear anti-roll bar, more stiff equals more oversteer or is the opposite? Thanks.

Front needs to be soft to reduce understeer but go too soft and you get bodyroll understeer. I find safe bet is around 14/65 for antiroll bars.

Ah that is unfortunate then, it does make sense though

You are more of an expert than I am, I have not tuned a car at all in my 12 years of Forza lmao maybe it is time to start

Thanks. That goes for rwd, fwd, and awd?

I use similar for all. I may soften the rear for rwd but not much.

I was thinking about this discussion the other day - it suddenly came to mind that F6’s FOV is generally quite wide and a bit zoomed out. That may give the driver a lot of confidence going into turns, not realizing that IRL, he/she would have to take the same turns at a slower speed.

Aside from the understeer and tuning to correct it aspect, I do wish the physics are reworked in future releases and made to be much more progressive and nuanced. At times, the cars understeer when they shouldn’t and oversteer AND veer off the track at the same time, which is rather unusual. In addition, shock absorber oscillation and braking needs to be significantly more nuanced IMO.

A driving model closer along the lines of PCARS, AC or iRacing would be very welcome indeed. Please keep the casual driving for F.Horizon T10!