How to measure my fuel tank?
#17
The internal diameter of a fueltube is 2mm = 0.2cm
The surface is phi x r^2 = 3.1415 x 0.1 x 0.1 = 0.031415 square cm
To get to 1cc you do need 1/0.031415 = 30 cm of tube.
#18
i measure the ST-RR fuel tank with a 50ml syringe( i put 3x50ml) and it is full o fuel...so the st-rr tank is 150ml....
#19
You do need something like this to messure it right:
#20
where a tank is full of fuel ???
when it goes to overflow ?
when it goes to overflow ?
#22
Usually they tech after the first round. Just run it then let them tech it. Add fuel tubing to the tank if you are over
#23
However, if you are over on your capacity, and use the 1" of fuel tubing with a screw or bolt in each end dropped in your tank, you will achieve reduction of a little over 1ml/cc since will now have to go by the outside diameter, and the actual space the heads of the screws take up.
Stephen
#24
1 inch is just 2.54 cm, 1 inch of tube is calculated arround 0.1cc and not 1cc
#25
My bad, I see whta you are saying now. Must have put my decimal in the wrong spot. I'm not used to using the metric system over here.
Okay, so you are saying that we need approx 10" of fuel tubing to equal 1ml/cc of fuel? That seems like a lot of line.
Stephen
Okay, so you are saying that we need approx 10" of fuel tubing to equal 1ml/cc of fuel? That seems like a lot of line.
Stephen
#26
Yes, that is it!
I just messured it, with a 60cm fuel line it needs 2cc to fill it up.
I did made a small manual about all the technical inspection tools we use. Regarding the EFRA we have to messure the fueltank up to the carburator and so I was wondering how much difference the length of the fuelline would make so I calculated it and did not find it that important.
By the way, if you can have 2cc extra it is not adviseable to place 60cm of tube, you can get sproblems due the higher resistance in the flow.
I just messured it, with a 60cm fuel line it needs 2cc to fill it up.
I did made a small manual about all the technical inspection tools we use. Regarding the EFRA we have to messure the fueltank up to the carburator and so I was wondering how much difference the length of the fuelline would make so I calculated it and did not find it that important.
By the way, if you can have 2cc extra it is not adviseable to place 60cm of tube, you can get sproblems due the higher resistance in the flow.