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After much lurking of the SAU forums, and research into the matter i figured i'd post up regarding my new turbo :)

Its .63ar hotside and .70ar coldside. Now i know its going to be laggy, and should have gone for the GT3071R but that aside, any ideas on when i might make a good boost figure and approx RWKW it might prodcude..

Engines internally standard, but has supporting bolt on and fuel mods.

Im gunning for 250rwkw - are stock internals up to this?

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https://www.sau.com.au/forums/topic/169915-gt3082r-on-rb20det/
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Where's your waste gate supposed to fit?

High 4's before you start to make any reasonable power if you're lucky and it's tuned right. You've gone about 2 sizes too big on the compressor for 250rwkw.

Bit big , but if you run about 18 psi with a big cooler it will be fine . You will have time to make a cup of coffee when its coming on to boost . But he .63 rear will help . I have seen 300 at rear wheels with std engine on 18 psi with coola , exhaust, inject and Haltek .

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