C6 modulator vacuum line size?
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Cargo Master
Joined: Aug 2007
Posts: 2,561
Likes: 69
From: New Zealand
C6 modulator vacuum line size?
I'm temporarily replacing the dying AOD in my truck with a C6.......until I find a suitable donor for a manual conversion.
For the swap I need to run a vacuum line to the modulator, which has a 1/4" fitting.
But doing a search I can only find someone specifying 3/16" tubing - is this correct? Would using 1/4" right through create any problems?
Thanks
For the swap I need to run a vacuum line to the modulator, which has a 1/4" fitting.
But doing a search I can only find someone specifying 3/16" tubing - is this correct? Would using 1/4" right through create any problems?
Thanks
Senior User
Joined: Dec 2010
Posts: 184
Likes: 1
From: Strasburg, Va.
if you increase the inner diameter of the hose, wouldn't that decrease the pressure of the vacuum? going from 3/16" to 1/4" increases the diameter by 33.3%, don't know if that matters or not, just a thought.
Posting Guru
Joined: Feb 2010
Posts: 2,006
Likes: 2
From: CASA GRANDE AZ
the size difference between 1/4" & 3/16" would be nothing to worry about considering that the vacuum pump is a big ole V-8 engine ! if you were dealing with smaller pumps then the size difference could come in to play ! as with that modulator there is only one size of hose that can fit it as the nipples are all built on to them !
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