External Wastegate Lines

[CameronBNR32]

Hey all,

what vaccum lines go where on a external wastegate? plenum? pre-turbo?

cant find any info or diagrams

[PHaT MR30]

depends if your running a EBC or not,

If you are i can help...

the top goes to your EBC the bottom one goes to the intake plenum

[CameronBNR32]

nope im not running a EBC at the moment.

Wont matter if I leave the top one disconnected? and just connect the bottom one to the plenum?

Thank you for the info

[WetGTR]

The bottom one goes to your boost controller which should be connected to vacuum and the top one should go to the manifold or pipe before the throttle body so it gets plumped back in.

[carl h]

The bottom one goes to your boost controller which should be connected to vacuum and the top one should go to the manifold or pipe before the throttle body so it gets plumped back in.

<{POST_SNAPBACK}>

incorrect.

the bottom one goes to the boost source (intake mani, charge piping after fmic....), and the top goes to the boost controler.

ext gates work just like internal gates they use pressure to open at the right time, so pumping pressure into the top will only keep the gate closed.

*edit*

i just realized that you were speaking in relation to that picture, and in that case you are right.

however conventionaly i think of the ext gate being set up so the valve is pointed to the ground.

Edited January 25, 2006 by carl h

[PHaT MR30]

yeh my basic understanding is the bottom one has the mani pressure going in, once it reaches the springs threshold it it opens the valve...

how ever you should check withsome one else not running an EBC cos i know that was a big factor in my mates car, his wastegate having problems and overboosting off the guage before killing the engine

[CameronBNR32]

sorry guys i should have turned the pic 180'

Thanks for all your help much apreciated