fuel flow calculations ?

[TwoSeven]

Does anyone have some links to formula for calculating fuel flow rates from main/pilot/needle jet sizes etc.

pref. for both mikuni and keihin jets (saves me having to convert).

Cheers

[Hitcher]

Try this for starters:

http://www.answers.com/topic/carburetor

[TwoSeven]

Thats pulled from the wikipedia.

I actually need to be able to calcualte the fuel flow given the size of the needle and needle jet used (and main jet).

[Hitcher]

Thats pulled from the wikipedia.

I actually need to be able to calcualte the fuel flow given the size of the needle and needle jet used (and main jet).

Sorry. I thought there was a link from that page to a fluid flow formula.

My (rusty) knowledge of fluid dynamics suggests that that may be a rather complex calculation, unless there's a convenient ready reckoner for this exercise.

Fluid flow through a nozzle is complex and (from memory) is quite different when there's a vacuum involved and for liquids of differing viscosities.

Hopefully somebody will know a simple way of working this out.