The sound of 270s on an RB is porn
Back on topic:
As Nismoid said GTRSs are too big for 370awkw, for response you need to make your target power level with the smallest turbo/s.
But what power you will get will never be enough. If this build is for "real" i would put on T51R (KAI). Will make over 400awkw and have fairly good response.
And have a set of 260 degree 10.25 lift cams in there.
A good friend of mine built his engine solely to run on E85 and his CR is 9.5:1 has run 2.1 bar with no knock at all.
9.0:1 would be the best for both IMO.
Mine is roughly 8.7:1 i think.
OR get CRAVED here on the forums to powdercoat them for you. Paint chips, polished scratches easily, powdercoat last forever.
Great work at great prices
Ill post up pics next week when i have my engine together.
When driving around town it feels just the same as the stock turbo. At partial throttle you will always go straight to positive pressure. Might not be as high as the stock turbo.
But really, you are not upgrading to a 500hp turbo to have it feel like a stocker now are you
Get some cams and all the torque you had with the stock turbo off boost will return.