[pskop9]

Im thinking of going to an o2 mounted wastegate. What would i need to make the internal wastegate not function?

 

[bettfootball]

Remove the wastegate and flapper.

 

[TurboTSI95]

What he said, and port the waste gate hole.

 

[NCDirtrider249]

Or weld the flapper shut.

 

[TurboTSI95]

^ Only works when mounting the external gate off the manifold. He want's o2 mounted, so he'll have to remove the flapper.

 

[19GSX97]

If u weld the flapper gate shut you would have to put the wastegate on the manifold.

Edit* you beat me to it.

 

[pskop9]

Are there advantages to putting it on the mannifold vs the o2?

 

[TurboTSI95]

Preferance.

 

[DSM4LIFE-AWD]

Lmao don't listen to these guys

Putting an external wastegate on an o2 housing for an evo3 16g or big 16g is just plain stupid !

 

[pskop9]

Lmao don't listen to these guys

Putting an external wastegate on an o2 housing for an evo3 16g or big 16g is just plain stupid !

Care to explain?

 

[kjischaos]

I wouldn't bother spending the money on an external wastegate when running a 16g. It's really not worth it,man. I'm running 15psi just fine out of mine just using a manual boost controller.

 

[DSM4LIFE-AWD]

Care to explain?

Sure man !

See 16g are turbo who like to creep, mine is ported and I can't boost under 15psi when I got WOT pass 5K in revolution. The fix would be to port the waste gate hole but when you this you loose spool ... They also crack easily around the waste gate hole so porting the hole will only make it easier to crack. In other word it will cost you time and money for a poor setup. Yes it would look awesome but there are better setup for less money.

Buy a manifold with a flange for a waste gate and weld shut the hole for the stock gate in the turbo. Best of both world !

 

[Jusmx141]

See 16g are turbo who like to creep, mine is ported and I can't boost under 15psi when I got WOT pass 5K in revolution. The fix would be to port the waste gate hole but when you this you loose spool

How the hell does wastegate hole size have anything to do with making the turbo laggier?

... They also crack easily around the waste gate hole so porting the hole will only make it easier to crack.

Right....and if it cracks when the external gate is placed on the o2 housing, you'll still have the ability to seal off the crack and control boost....but if it cracks with the wastegate flapper welded shut, any airflow seeping through the crack and around the flapper will result in a pre-turbine leak.