Dual intake rudder

[MG1234]

Hi guys ,just put a dual intake rudder on my Zonda ,got it here at OSE, the lower hole doesn't push much water thru the system ,I blew on the lines and they are clear,I blew they the rudder and it's clear ,if there is a better one available I'll buy it ,the stock rudder did a better job of cooling both sets of motors and ESC ,any input? Thanks ,

[Drkrieger]

drill out the in hole at the rudder. DO NOT TRY TO DRILL DOWN THE PASSAGEWAY. may help a bit

[MG1234]

Just did some checking ,I have a guy that works on my boats for me ,the black tube I bought is the smallest ID ,really small ,this may be the problem ,I'll order the 4 mm ID stuff ,thanks ,