What is "bottoming out"

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Dec 26, 2009 | 10:55 PM

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senor honda

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What is "bottoming out"

Briefly.....
To some people a car bottoms out when the suspension no longer has enough travel
to keep the parts/springs/shocks from hitting each other. This is why I don't remove bump stops from the cars that I lower.

To other people, a car bottoms out when the suspension no longer has enough travel to keep the underside of the car from hitting the pavement.

Other people may have their own wording, and are free to post it here.-Bob

Someone asks.......

Quote:

Now... What exactly do you mean when you say "Bottoming out?"

Senor Honda replies.....
Generally a spring's purpose is to support the weight of a car and keep it from bottoming out. Stock springs were engineered/designed to support the weight of a car, so I believe spring rates close to stock, do what they were designed to do if a car is street driven. I believe heavier shocks and lighter wheels keep the tires in contact with the road longer during bumps and depressions.

In a racing application such as a banked turn, the car will "weigh" more than stock as it is pushed down into the banking by cornering forces, so heavier springs than stock are needed to keep the car from bottoming out.

In a racing application such as a car getting airborn, the car will "weigh"
more when it lands, as it is pushed down toward the pavement by an "increase" in gravity, so heavier springs than stock are needed to keep the car from bottoming out.-Bob

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Last edited by senor honda; Dec 26, 2009 at 11:09 PM. Reason: spelling

Dec 27, 2009 | 08:10 AM

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Alswizzo

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good info

Dec 27, 2009 | 08:55 AM

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CheesePhantom

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Very interesting.

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Dec 27, 2009 | 09:42 AM

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Elsupremo

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wrd

Apr 14, 2010 | 07:56 PM

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derek_bmx

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I SAy BOTTOMED OUT WHEN MY LIP IS DRAGGIN THE DAMN GROUND AND HEADERS SCRAPIN!!! lol

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Apr 14, 2010 | 08:02 PM

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omgwtfbbq!

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Quote:

Originally Posted by senor honda

In a racing application such as a car getting airborn, the car will "weigh"
more when it lands, as it is pushed down toward the pavement by an "increase" in gravity, so heavier springs than stock are needed to keep the car from bottoming out.-Bob

Gravity can be taken as constant for any altitude you could drive a car to, its kinetic energy that increases the spring rate required to stop a car from bottoming.

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Jun 2, 2010 | 07:45 PM

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camaro69blk

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Its when your wang cant goo all the way in because a girl is too tiny lol. Sorry my mind is always in the gutter

Jun 2, 2010 | 10:21 PM

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Secondz

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when i set my oil pan on the floor?

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Jun 3, 2010 | 07:04 AM

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senor honda

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Camaro,
I like your sense of humor.

If I could get that lady's phone number.....
I may have a solution.

-Bob

Quote:

Originally Posted by camaro69blk

Its when your wang cant go all the way in because a girl is too tiny lol. Sorry my mind is always in the gutter

Jun 3, 2010 | 04:39 PM

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flatrex

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Quote:

Originally Posted by omgwtfbbq!

Gravity can be taken as constant for any altitude you could drive a car to, its kinetic energy that increases the spring rate required to stop a car from bottoming.

Don't even waste your time here, this guy is always right,and solves every problem ever. haha

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