Dirty Air but the car in front!

Hi again

The community is getting annoyed with this dirty air affecting cars in front

What it affects

Car handing
Understeer slow corners
Grip levels

Generally your better off being 2nd place for most races please disable this

Let the slipstream do its thing

Manyy thanks

Can you provide more evidence than a few half lines of text?

Video footage, analysis etc.

It was a big debating point about 6 or 7 months ago and seemingly fixed.

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I believe it’s a baked in function of the game which forza believes it’s a realistic

When your first in a group in close quarters at pace you just worse off

Turn 10 won’t change it unless you have irrefutable evidence though, plus it may be by design.

plus it may be by design.

That’s my point

1 hour 6 mins 30sec my battle with mrjenks watch what happens after the pit when he’s not within one sec

This is just one experience I’ve had it’s worse in faster cars

This by far not evidence by if you play the game alot you should see it

Some great coverage by Esv Green

4 Likes

Yes it is really annoying. I think the community calls it “forza wash” and it was reduced because of many complaints. That is the last info I have.
It is really frustrating to race like this I think the effect is just poorly done and not well simulated. It feels like a stat debuff you get for a brief moment.

It is also very noticable as the car behind which is fine because dirty air exists for the car behind, it is just overdone in my opinion. I often take that effect into consideration, brake slightly earlier and harder and my car will still almost run off track although I took that corner 10 times during practice.

I wouldn’t be surprised if this dirty air causes many of the crashes which are so typical for this game.

It’s makes the game horrible to play

I’d understand the car behind having it but not the car in front

I’ve noticed that too. A loop in which the one behind has a better pace until he overtakes.

The Aerowash strat we didn’t ask for.

Many thanks

Yes, Aerowash still exists. Not to the extent that it did before where you was getting spun out when people were behind you, but it is a still having too much of an affect on the racing and artificially rubber bands you to someone unless you’re either lucky enough to break draft or just multiple sec per lap quicker.

‘Dirty air’ as it should exist, doesn’t in FM. It should be extremely noticeable when following driving a high downforce car like a GTP. But there’s no understeer for the following car.

The higher aero the car you’re driving the worse aerowash is. I’ve historically over the past 3 FM games been one of the quickest Prototype drivers in the game, Right now the state of driving for example the new Porsche 963 hypercar in a race with someone within 0.8s(slipstream range) I would say I lose on average around 0.6-1s from my unobstructed aerowash free pace. The pace loss manifests itself in 2 very clear ways, though there are probably more unknown factors too.

  1. When someone is within 0.8s or roughly 150ft or closer to your car you lose rear downforce and the car balance shifts overwhelming to oversteer, especially in high speed corners.

  2. Braking distances are longer for the lead car. You could say this is actually a consequence of having less aero caused by point 1 above. But I can quite reliably alone hit the same braking marker over and over again. Yet as soon as someone is in slipstream it feels impossible to slow down in time if you brake at the same spot. This is part of an unwanted positive feedback loop, keeping the slow driver behind stuck to the back of your car sapping you of more grip, causing artificial racing with people who aren’t really on your pace.

On the whole, it’s extremely frustrating to race at the top level where everyone is super consistent and within a few tenths. It is so much easier to just sit in 2nd and let the guy in front do all work for you. It makes the league racing more a of a lottery than an actual race.

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I would love if the devs commented on this. I know it was in the game at launch, seemingly a bug, and was subsequently addressed.

I’m paraphrasing here, the patch notes for that update said something along the lines of ‘rebalanced the aero effect of slipstreaming’ not that it had been fixed or removed entirely. A lot of players aren’t skilled enough/consistent enough to notice the effect. However at the top level of the game it’s abundantly clear it’s still detrimental to fair and realistic racing.

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Huh, interesting. Why do you think it’s in the game? Incidence of their physics system or trying to artificially increase the closeness of competition?

Also I’m surprised there is no dirty air effect in the game but I guess it makes sense since fluid dynamics is by far the hardest part of physics to simulate.

I honestly think it’s recycled code from previous games. I trace it back to the FM6 NASCAR update where the drafting physics changed dramatically. This reverse dirty air was introduced along with a push mechanic for the car in front. The lead car used to gain speed on the straight too if someone was in the slipstream through FM6 and all of FM7. For this game they removed the ‘push draft’ and the slipstream is extremely powerful now. That also meant that the aerowash or reverse dirty air was more noticeable. Then again the cynical part of me thinks it was added in to ‘create’ excitement. But all it really does is hinder the experience.

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Recycled code makes the most sense to me. It must’ve just been missed for launch then they did everything they could to lessen the effect in the update but clearly it’s still present. Hopefully T10 acknowledge it’s a bug at the least.