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Rb25/30 Slappa Fun!

patrickmm10

By patrickmm10,
in Engines & Forced Induction

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patrickmm10 Rookie

patrickmm10

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Hey guys im looking at building a pretty standard rb25/30. So before i start ill give abit of background info. Ive got a rb30 out of a S3 31 and a rb25 head off a 33 (unsure of whether its a s1 or 2). The engine will be going into a r31 that will just be used for daily driving and general street hoonary. It will be paired with a standard NA 30 5speed box, decent clutch and Standard LSD.

Now im not looking for something too crazy so my plan was to run as much stock as possible. Ive already got a freddy ffp, hks cam gears and a T04e from a mate so ill be using them paired with stock 25det injectors, loom, ecu, afm etc. It will have a stock exhaust manifold (even got the stock heat shield) but will have 2.5" exhaust with a decent muffler and punched out cat. Have people used a Similar set up and what results did they see? And whats the max boost i can run with stock rb25 coils and ecu?

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