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i have no idea about compretion ratio's.......so um wat is a good 1 to have that will still be fairly nice 2 drive around with down low..but let me be able 2 really give sum boost 2 it wen i feel the need..??

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8.5:1 is the happy medium and will handle plenty of boost.

With forged pistons just to get the motor rebuild budget for ~3.7-4k for it to be done properly. Thats not including any work or rebuilding the head, just the bottom end.

Then you have to add labour of remove and install of the engine if you get some one to do it.

going by your SAU details you are 17.

i am no angel on the road, nor am i an old wise man at 21.

But i think a 300rwkw car with a 17 guy at the wheel could be a pretty wild mix, (re: Mines_Datsun)

maybe just get used to the car for a while before you go building a monster motor. I'm not having a go at your driving abilities.. i am mearly thinking about what could/would have happened to me if i had a 300rwkw car when i was 17 :P

ON TOPIC:

8.5 CR is as joel said, a nice compromise and will take a fair bit of boosting.

get a rebuild done with forged pistons and if you can afford it, forged rods. Build it once, build it right. The advantage by doing it now is so you can always boost the crap out of it in the future.

If i went down the path of building a monster motor straight up... i'd be driving it by now, but i spent alot of money of temporary go fast parts that could have been better spent on a new engine build.

*one more thing.. can you type english and not sms style shortcut text ?? please :P

hey guys i jus got bak from the mechanic an he said dat my motor is 100% fine....jus the turbo has gone...so 4 now ill jus get a replacment turbo an let my bank account get bak into the + dollars.....yep im 17 go 2 skool full time an have a part time job....an i paid 4 my car myself none of this mummy's lil boy stuff...so as u kan imagine i dont gots a hole lot of $$ an 4 now ill jus fix the turbo then l8r down the track ill get the motor dun 2 its full potential...u have a good point skyrine-dave

joel...thanx mate i will keep that in mind when i do get it rebuilt.. :)

a garrett turbo.

I think a GT2530 would run well on an RB25, but it may be on the smallish side.

there is a GT35 for sale in he sale section for $1990... thats cheap... you'd just need a manifold or a spacer plate to fit it. But thats a serious turbo and will make 300rwkw easily. You just need a motor to support it tho.

check out www.turbobygarrett.com and check their pdf file for different turbos etc.

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