External wastegate questions

[Billy_RS]

A friend of mine wants to go external wastegate on his 2.0 16v turbo Peugeot 206.

It has an impressive spec all singing an dancing.

He has a GT30 turbo and previously made 350bhp at the hubs.

It's built to handle up to 500bhp but ideally wants to keep it between 350-450bhp.

Could anyone explain exactly what wastegate should be used? It's going to be a tial unit. Does it need to be 38mm? What spring is needed? Or is it all down to the mapper to say what woul be best?

Hope you can help

Cheers billy

[Billy_RS]

Anyone?

[Billy_RS]

Come on........

[Ben Purnell]

Sorry Billy no idea mate, I would start with the tuner and see what they would advise

[Billy_RS]

Yeah that's what we're thinking, just thought we'd ask on a few forums to see what the general jist was.

[Boostjunky]

I take it the gt30 he is using is a 3076...?? If so i d recomend a 44mm wategate,

But tbh for the power he wants he would be better suited to a gt2876 which will do 400+ at full tilt