stock manifolds and .63 AR

[RBVS]

looking for infomation from people using turbos with .63AR rear housing on a stock rb25det manifold. Just things like response, lag, power that the combo offeres. reason being is I have just bolted on and internal gate to4e turbo onto my stock manifold and have found that i dont get any real action (boost, say over 12psi) until 4500-5000rpm.

i have a few reasons as to why this is happening, one (the main reason) is my dump pipe mite not be lining up perfectly to the custom flange and over laping the exhaust wheel buy 2 or so mm restricting flow.

SO im thinking of going external gate with a manifold, with a new dump, and wanted to see what was possible if i just got a new dump made for the current stock manifold set up.

cheers

[RS500]

what are the specs of the turbo?

it's not as simple as just telling us that it's a T04E with a A/R .63 exhaust housing.

the wheel combination is important in being able to tell how the turbo response will be.

[RBVS]

i dont know all the specks off hand but, 3'' inlet and wheel, .7ar compressore and .63ar exhaust housing. Its from I.T.S they rate it at 530ps. any info on performance with up graded turbos on stock manifolds would be helpful, cheers.

[RBVS]

as seen in my avtar next to a stocka

[USRB25S13]

I have a .63 exhaust housing on my turbo. But since my exhast wheel is a stage 5 wheel vs a stage 3. I don't see full boost till 4200 RPM's. I am running an external wastegate. The compressor is a T04E .6 AR compressor with 56 trim compressor wheel rated at 65lbs/min of flow.