Internal to external

[20gst]

I have a super 20g from HRC runs well I like it alot. Question is,My 20 has an internal wastegate and a larger 10cm exhaust housing. The spot whare the flapper door is is welded shut with a different system inside the housing releasing into a 3'' o2 pipe.
Is there a way to modify this to an external type and would it benifit me any. HRC is saying not to do that the turbo is tuned correct for its system unlike others. Said the internal has no downfalls using a 10cm housing not a 6 or 7cm.
Just wondering and wanted some input. Thanks

 

[allwheelTSI]

yes,you can switch to an external gate(they are kinda pricey),and the beneficial side would be you don't get any boost creep with a good external wastegate.

 

[candela]

That is how the hrc turboes are set up... i used to have a super16g and part of the point of a 10cm housing is for the internal gate. They work good dont they? Are you getting creep or seomthing?

 

[20gst]

Originally posted by candela
That is how the hrc turboes are set up... i used to have a super16g and part of the point of a 10cm housing is for the internal gate. They work good dont they? Are you getting creep or seomthing?

 

[20gst]

You asked if I were getting creep. No I was just wondering I still feel the internal is small for a flapper, and wondered if its been causing my backfire crackle sound between shifts sometimes.