New 940 - Pre Modded - How much boost?

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Post 716716 by Couper on 2014-06-03 22:41:27

Hi Change of plan. Bought a 2.3 turbo with the following mods: - 15g turbo - Blue injectors off a T5 - 3" MAF off a 960 - Back box delete with straight pipe - Manual boost controller. - KnN filter - Boost gauge Gauge maxes out at 12.5 psi in top gear on full throttle. Seems too low as boost goes flat after 3,000 rpm. What is the max boost I can run? Can I go higher if I fit The Lost Art Of chips? Thanks

Post 716743 by smithy on 2014-06-04 00:58:21

You can run 18psi safely with that turbo and the 3in maf but you need an afr gauge .check what fuel pressure reg you have fitted because you need to run them injectors at 4bar to make them work with 3in maf.take the car to the dyno and set the boost and afr on there.otherwise you will be running lean