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A31/C33 parts are very identical. (except exterior ones ofcourse)

I've went thru ALL of the links you've posted and it only answered 1 question of mine (no.2). My mechanic, tuner and myself need to know the remaining questions to decide whether this would be something worth the $$, effort & time, and where i'm at, there's no RB30 block at the wreckers, and even if there is, we cant get it registered (legalized) because of the Cc difference from the RB20. So please guys, help me if you can. Thanks.

As I already have a stock RB20 at the moment, I am figuring out more ways to pump out more power than the dull RB20. Was thinking of the RB24 with GT30 turbo and also aftermarket cams. I know this topic has been discussed many times before but i cant find out the following 1. How much HP can this setup take ? 2. Whats will the compression be like ? 3. How much boost can it take ? 4. How much revs can it take ? 5. Is there alot of work that needs to be done at the machine shop to do an RB24 ? Sorry for all the questions, i'm very interested to give it a go and i need the answers. Hope you guys will help out my little project.. Best wishes to all.

If you want to go thru Yahoo Auctions JP, you can go thru MrZac. He can bid for you and send it to your house straight. You just have to TT him the money. Hope this helps. Anyways, I reckoned a Nismo GTR cluster or a stock GTR cluster looks much better than that.