If a car has a lot of downforce and soft suspension, can it bottom out on a flat straight?

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sure. if there is a bump

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If you set the bump stiffness to it’s lowest level and the suspension at it’s lowest, it would be interesting to try on a car where you can get 400+ pounds of down force on the rear wing. I think I’m going to try it! :wink:

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For Science, I am going to independently verify your results. :wink:

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It was a theory, I’ve never seen if it works. It just seemed logical.

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Thanks!

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I’m bottoming out according to telemetry but no sparks…

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That sucks! I want to see sparks. That would be a cool addition to the game.

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Interesting.

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In FM6 this did happen but you don’t really get sparks from bottoming out. I tested this mainly on race cars that could push 350 to 1500 pounds of downforce on the rear. According to the telemetry and according to my drag racing times it did effect the car. Downforce is actually simulated quite well in FM6 anyway, if you took the jump at the Airport especially in a car with a 50/50 weight distribution you’ll notice that you can either make the car nose dive or almost do a backflip if you want to by adding more downforce as it actually makes the car heavier at either the front or rear of the car. A good car to test this out in is the Corvette C7 Z06. I haven’t tested this on FH3 as I rarely play the game but I’m certain the results would be very similar.

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yes if you going fast enough, and have enough downforce, and are low enough to the ground.
It occurs in F1 all the time. ( and they have very stiff suspention)

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Update! It seems that you can get sparks in game. You may need to be in a car that CAN bottom out to do it. Let me explain… I first tried using a one:1 and could not get the chasee to scrape ground. but just today, I tuned a rally Shelby cobra Daytona and it does have sparks fly from it when there are bumps in the road.

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GT-R with Liberty Walk kit does with it slammed on soft dampers and 10kg springs (100kg/mm in forza measurements) & I think the BRZ/GT86 does the same.

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I meant without hitting bumps

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Then likely no. The geometry for the control arms is designed to never allow this. In real life you could do it by putting wheels on the car that are smaller diameter than what the suspension was designed to use. They wouldn’t do that in the game.

So, in game even if the suspension was fully compressed on a level surface, the chassis or components underneath the car would likely have clearance from the ground.

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Thanks!

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By the way, the reason the hyper cars have rear wings that adjust is that if the wing was fixed, at high speed the downforce would break the suspension. Race cars aren’t allowed to use movable wings so they have to build the suspension to handle the load.

NOTE: In F1, they do have a DRS system that allows the drivers in specific zones to open a vent on the rear wing to bleed off air and reduce drag for passing, however, that’s not quite the same as what the hyper cars do.

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Thanks for the input!