ECU Vacuum Hose Diameter question

[korayus 0]

In the bentley Manula says that vacuum hose must be exact 1 meter. However the diameter of hose should be important too.

I'm not %100 sure but I thing the original vacuum hose diameter 3.2mm Is anybody can confirm this?

I replace the vacuum hose yesterday and my new hose has 4mm diameter (0.8 mm bigger than original one I thing).

So I should use shorther than 1 meter. The original vacume hose has 804.24 cm3 volume ( 100cm x pi x 1.6 x 1.6). So with my new 4mm vacuum hose the lenght should be 804.24 / (pi x 2 x 2) = 64 cm

 

However I am not sure what is the diameter of original vacuum hose.

 

Help please.

Thanks in advance.

Koray Ustuner

[flusted 0]

pretty sure it 3.2 or 3.5

[korayus 0]

pretty sure it 3.2 or 3.5

For 3.2mm I should use 64 cm 4mm diameter hose or

for 3.5 mm I should use 76.5 cm hose. Whch makes 12.5 cm differences.

It seems not to important, but on the bentley manual, it says even 10 cm differences very important.

 

Thanks for the answer.

 

Koray Ustuner

[korayus 0]

Ok, I found it. The original diameter is 3.5mm

So if you want to change it with better 4mm quality one , then lenght should be 76.5 cm.

The formula is simple. the all you need to do:

 

Lenght=962 / 3.14 x (new tube diameter / 2 ) x (new tube diameter / 2)

 

Koray

[DUB 0]

Mo fo thats some bad ass shit you got goin on there girls :lol: :lol: