Octavia Vrs II - Upgrading original turbo?

[Vrs-Mike]

I've read on some sites that it's possible, and even fairly simple, to upgrade the stock turbo on the Octavia Vrs II with a little bit of tweaking by a professional mechanic, as an alternative to fitting an entirely new turbo. Any thoughts on this regarding plausabilty/safety/performance/fuel demands, etc?

[Makefish]

Not heard of it but I believe that you can uprate the internals to increase power but I'm really not sure. Stu will no doubt be able to shed some light on this.

[cheezemonkhai]

Turbo's spin at many thousands of RPM, so I would think any changing of internals would require specific balancing and be a case of taking an old one and sending it off to have the parts changed over that the whole assembly balanced.

I wouldn't want a mechanic messing around with the internals of a turbo unless they were a turbo specialist and had access to a lot of specialist equipment.

[VRStu]

Not heard of anything myself.

The guys in the US are using bigger turbos but obviously the ECU needs to mapped to make use of it.

[Harry_vRS]

My advice would be not to fanny around with the original turbo, just save the pennies, be patient, and wait for the release of Revo Stage 3, which will use a Garrett GT3076R turbo with an external wastegate. Nice.