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Author Subject: boost pipework and engine movement
buzzbrightyear

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Post #1
im in the process of hardpiping my boost pipework and am wondering about engine movement causing stress and crackin a weld or pipe in the future, there will be 4 silicon connectors, but im wondering wether to use the hump connectors instead of straight silicon as they are ment to allow for engine movement.
there wont be much as ive got the solid rubber mounts but still i want to make sure any tiny amount of movement wont cause stress on the pipework.
how have other folk done theres and have you had any problems with pipes/welds cracking and splitting?
thanks andy

buzzbrightyear has attached the following image:

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 5th Jul 2011 at 20:41
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adam b

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Post #2
How long are the connectors?
Not a bad idea at all Thumbs up

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Nothing to see here
Posted 5th Jul 2011 at 21:02
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buzzbrightyear

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Post #3
around 75mm, but theyre available from a few different places so i guess they vary

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 5th Jul 2011 at 21:46
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davedgti6

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Post #4
You don't need the humped ones I have just used straight, also I would use longer connectors than 75mm as I had a 75mm connector and blew the boost hose straight off, changed to longer ones and not had a problem since Smile

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Team Supercharged Gti-6™ Ninja
Posted 7th Jul 2011 at 00:30
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buzzbrightyear

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Post #5
do you have a bead on your alloy pipe ends?
these humps are 100mm long:
here
i also plan on having beads on all the pipe ends

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andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 6th Jul 2011 at 04:51
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davedgti6

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Post #6
buzzbrightyear wrote:
do you have a bead on your alloy pipe ends?
these humps are 100mm long:
here
i also plan on having beads on all the pipe ends


No my pipes are just straight (no beads) , the 100mm humps would be better yes, also I have a silicone connector straight off my charger and have not gone down the welded route, no problems with collapsing pipes either Smile , use the Mikalor clamps too,

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Team Supercharged Gti-6™ Ninja
Posted 7th Jul 2011 at 00:37
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pugjim

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Post #7
Humped connectors like that can split just like any others. Its a common problem for them to split on the smaller HDI engines.
Posted 7th Jul 2011 at 02:14
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