Tungsten crank counterweight

[Shrek]

since the counterweights can only be so light, why not make them from tungsten/lead so it will not touch the oil as much or not at all?

[tok-tokkie]

Surely they are dry sump engines so oil 'windage' is not an issue.

[bhall]

And, I believe, tungsten is banned for use as a material in the construction of F1 cars.

EDIT: Nevermind. I was thinking of a different metal.

[marcush.]

since the counterweights can only be so light, why not make them from tungsten/lead so it will not touch the oil as much or not at all?

is this really a new idea to you?

[Shrek]

since the counterweights can only be so light, why not make them from tungsten/lead so it will not touch the oil as much or not at all?

is this really a new idea to you?

yes because i've only been a fan of Formula 1 for 2 years and trying to learn about the past

[marcush.]

Tungsten fitting to counterweights is not unusual at all outside F1

[Shrek]

Tungsten fitting to counterweights is not unusual at all outside F1

i mean as the counterweight not drilling a hole in the counterweight and puting a slug in

[tc9604]

Tungsten fitting to counterweights is not unusual at all outside F1

i mean as the counterweight not drilling a hole in the counterweight and puting a slug in

How exactly are you attaching this tungsten?

[flynfrog]

Tungsten fitting to counterweights is not unusual at all outside F1

i mean as the counterweight not drilling a hole in the counterweight and puting a slug in

How exactly are you attaching this tungsten?

heat shrink

or press fit and swedge

green loctite

take your pick

[safeaschuck]

Yep, i've seen some very high spec cranks with bolt on counterweights.

[riff_raff]

F1 cranks cannot use tungsten counterweights according to the regulations. I believe the rules state that the crankshaft must be constructed entirely of ferrous materials.

[Mikey_s]

F1 cranks cannot use tungsten counterweights according to the regulations. I believe the rules state that the crankshaft must be constructed entirely of ferrous materials.

it's here...
5.14.4 Crankshafts must be manufactured from an iron based alloy.

They used tungsten based counterweights in the past, but it's banned now...

[Edis]

Tungsten fitting to counterweights is not unusual at all outside F1

i mean as the counterweight not drilling a hole in the counterweight and puting a slug in

F1 engines use crankshafts with tungsten alloy counterweights that are bolted onto the crankshaft. The tungsten alloy they use is an ammunitions grade alloy that also meets the 19000 kg/m^3 limit stated by the regulations.

Ammunitions grade tungsten alloy, normally found in armor piercing ammunition, offers a higher strength than normal tungsten high density alloys, required when using it in the form of screwed on weights rather than pressed in slugs. You don't want one of these to get loose at high speed, it would go straight through the car and in best case cause a hole in the race track.

Tungsten counterweights can be seen at this picture: http://www.gurneyflap.com/Resources/P7110091.jpg

From the regulations

5.14.4 Crankshafts must be manufactured from an iron based alloy.
No welding is permitted between the front and rear main bearing journals.
No material with a density exceeding 19,000kg/m3 may be assembled to the crankshaft.