Question for engineer or math wiz

[EzGoingKev]

I need to calculate how many ml of fluid would equal 5mm of height in a cylinder.

What is the formula I would use?

[DrMark]

http://i553.photobucket.com/albums/jj368/DrMark43/volume.jpg

[EzGoingKev]

Thanks for the reply.

Just to be sure, I calculated 5.6ml (rounded) would occupy 5mm of space in a cylinder with an ID of 38mm.

Is this correct?

[DrMark]

Thanks for the reply.

Just to be sure, I calculated 5.6ml (rounded) would occupy 5mm of space in a cylinder with an ID of 38mm.

Is this correct?

Yeah, I calculate 5.67 ml.

Please tell me I'm not helping you make meth. ;)

[EzGoingKev]

Please tell me I'm not helping you make meth. ;)
No, nothing at all like that.

I am working with a set of front forks on a racing motorcycle and am testing a new configuration that I have not used before.

The fork is a sealed system so the air gap between the fork oil level and the cap gives you an "air spring" that will work with the physical spring. The set up that I am playing with is supposed to allow you to run the oil level lower than previous so I am going to start low but want to be able to accurately document any increases in fluid level.

[DrMark]

very cool

:cool:

[An Undocumented Worker]

If you are trying to adjust bottom out response on the fork, measure the height of the origonal oil level with the fork in a compressed state, if you are trying to increase resistance to bottom out add about 5mm at a time and then retest fork performance.

This is what I do on the fork for my mountain bike and it has worked well for me.

I use a digital caliper's depth probe and a flashlight to determine oil level.


A simple process that removes the tedious math and guesswork from the process.

[EzGoingKev]

While the principles are the same, what I am doing is a lot different than what you are doing with your mountain bike forks.