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My Plan, Starting to take shape but need advice.

rb20-calais
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Steve Grand Master

Steve

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Posted

Agree with the comments on the injectors. If highflowing, make sure that they can get a flow within about 1-2%, with a spray pattern that is equivelent to stock. I would want to see this personally, as I wouldnt trust it otherwise.

If you upgrade the injectors, no need to get a Fuel pressure regulator. Some guys on here have driven the RB20with 230rwkw on stock injectors just with fuel pump and fuel pressure reg. That is the way I would go if you are looking for 230 - I have also driven in a car (RB20) with 230 at the wheels with stock injectors, and no probs.

2530 is a good choice, I think a GT28 probably wont be coming on boost till about 4000 rpm. I havent been in a 2l with GT28, this figure is from what others have told me.

The hp rating that garret give their turbos is at 1 bar only, so if you wind more boost in, you will get more. This probably explains why horsepower in a box say they get 500hp out of a 400hp turbo.

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