Vaccum Hoses Size ?

[lowresolution]

Hello guys
What is the standard size of vacuum hoses should i go with ? . Currently i am using Patrol Pipes as vacuum pipes . Will switching to smaller recommended hoses bring nay change ?

Should we not use bigger pipes as vacuum hoses ?

 

[finx]

Standard size for most vacuum applications on an E series Toyota engine (ie starlet fwd engine) is 5mm. however some sensors and vacuum operated actuators such as Map Sensor and Fuel Pressure Regulator run 3mm hose's.

difference in hose internal diameters wont have bugger all effect negatively or positively on most applications, however making sure the hose seats well on its inlet/outlet joiner/fitting is of great importance as well as it being secure so in this instance the ID of the hose needs to be correct so no leakage can occur




Cheers
Ryan

 

[lowresolution]

Cheers man ! that clears it up !