172 turbo acutator

[Potter]

Just a quickie.. im having a custom actuator made for my gt25 turbo which is going on my 172. Does the spout for the vacuum pipe need to be on top or on the side? Or makes no difference? Thanks in advance

 

[Chip-mk1]

Depends what manifold you are using and what turbo you are using, no one can answer without seeing your installation in terms of which would be neater packaged in your bay, but both are functionally the same.
Its more about being for boost than vacuum as well by the way. vacuum wont actually effect it.

 

[Potter]

Ah right i dont really understand its just a question alex at turbo dynamics asked me today... its a log manifold from andyrg and a garrett gt25 turbo...

 

[Chip-mk1]

If in doubt, go out the top, its much less likely to present a problem.

 

[Potter]

Ok thanks for the help i will do that

 

[WilkyWay]

Face it so it's parallel with the cold side outlet.

 

[Jaff.]

i didnt think this made a diffrence...?

 

[WilkyWay]

It won't really. it's just for access you want it pointing up.

 

[Chip-mk1]

If it's out the centre you can put a 90 on to point anyway you want at install time (or go out straight)

 

[Potter]

Sorted.. ordered it with the spout on top next question... i need to buy some hose for it to run to where ever it goes :-/ what size do i require? Also the intercooler has 2.25 inch outlets so do i go 2.25 pipework and buy reducers to suit? Thanks in advance

 

[Chip-mk1]

2.25 inch sounds big enough for that turbo.
5mm or so should be fine for that actuator pipe.

 

[Potter]

Awesome thanks for the advice

 

[Andyrg@ ClioTurbo]

2.25" is fine we install this on all our cars and have seen 330bhp with no issues