Turbo Upgrade

[Huzqld]

I'm trying to work out what to do with my current setup.

Built Rb25/30 neo head

270-9.2mm cams

Good high mount single entry steampipe manifold

Gt35 .82 rear Internal wastegate

Its a street car (VL) auto with 3k stall

It makes fullboost by 4200 rpm.

We have no E85 up here in cairns unless its in drum.

Car makes 427hp on 22psi.

Id like more with out having to run massive boost levels, say a max of 25psi or so.

I was either thinking of selling the current setup and going a gtx4088 or pte6466 with twinscroll housing and 6boost manifold to suite and also 50mm progate

Or welding up the rear housing and buying a external wastegate, and perhaps a gtx35 with no rear housing.

Would there be much to gain from going the gtx35,

Or would there be a lot more to gain from 6466 or gtx4088 (without it being ridiculously laggy)

And which of the two would be the better turbo

I can't seem to find much of a comparison between the 2, especially on rb's

[KiwiRS4T]

Ask Hypergear what he's got to suit your current manifold - probably with an external wastegate coming off the turbo.

[Dose Pipe Sutututu]

water meth, more timing

[Gcjosh]

Ask Hypergear what he's got to suit your current manifold - probably with an external wastegate coming off the turbo.

As he said, call hypergear, super helpful and stao really knows his shit