Hahah yes i can hardly shut my bonnet, had to install MSD inside due to no space...

OK, translation time

Without any form of intercooling, ie FMIC, water injecton, ect you WILL get serious detonation starting at anything over 3psi... and thats with a any turbo, small or large. What you would be doing here is feeding the engin air temps of around 90deg which causes detonation, second cause is the stock computers ignition curve... this needs to retard dramtically under boost without intercooling.

Next is your fuel supply... the standard injectors wont handle over a few psi so replace them, luckily magna injectors can flow enough to JUST cope with a few psi, so grab a set from a wreckers ( and hope they are in good cond). Fuel pump is also a restriction but you could always hook up another pump inline to save you the cost of buying a larger unit.

VG30 turbos work well, but due to the size of there exhaust housing you will restrict top end power and all your power will be very low in the rev range, so you will constantly on boost and hitting the turbo's limits at around 4000rpm ( some like this, others dont)

Dodgy?? What I meant was a motor detonating was dodgy, not the fact you would fabricate all the work yourself... I too fabricate all my own stuff at home to save $$.

I know it would be great to do a turbo install for a few grand but you have to look at these things with an open mind and except other poeples opinons as some of us here have being playing with turbos for years and have tried all the short cuts and know what the results are

I myself, am not interested in a mild turbo set up to do 14s, thats NA stuff, but I do like to share any knowledge I have to others so as to help them avoid wasting money, Because if you know what your doing and DIY most of it you can have ALOT of power without spending silly money.

Can I recomend to you, that if 150kw@wheels is all you are after then spend the 2grand on the NA motor, but if your starting point is 2grand and you want a bit more power down the track you shouldnt skimp on the basics... Intercooler, Lge turbo (T04 size)and fuel system.
Break it down like this...
400 used RX7 turbo
350 intercooler
250 mild steel bends (weld yourself) you need around 6 bends @ $20 a bend, plus hose joiners,clamps... you may do all this for $150 too
100(?) magna injs
100 used pump
50 boost gauge u need this!
150 dump pipe
60 turbo flange (DIY mount it on the manifold)
AND whatever it costs you to "chip" the ecu or get a used ecu (wolf, MT ect) for around 400 plus tuning, plus there will be extra stuf such at oil lines but they can be sorted for buger all if you look around and DIY

geez thanks chef.

man, thats like the best advice ive got off these forums since ive been here. thanks for putting the time into replying.

im not sure how much i want to spend yet so NA might be the way to go.

thanks again - ive learnt heaps form this thread etc.

Thats cool, glad to help dude.

Two VG30 T turbo's would be o/k though...

indeed they would... Zoom style

I don't think i saw much change from 10k....to do it properly. I'm still only running 9psi, but i'm fairly confident that the engine will stay in one piece....just a pitty i'm not that confident with the driveline yet...lol

Its all the small things that count, like coolant hoses for your turbo, getting the sump tapped, oil hoses, heat shielding, filter and pipe, stuff like that
They can easily push you over your budget, and must be accounted for.

heres a cheaper way to get 150 rwkw without turbos (good for insurance)

my car should make around 146rwkw (near enough to 150) when im finished. This is what i have done

tickford snorkel $32
bmc air filter $120
wade 1004-14 cam $122
shims for wade cam $130 (approx)
pacemaker ph4480 headers $410
2.5" exhaust (dont know price, came with car, well say $500)
chiptorque HP4 ecu chip - $595

all up this comes to bout $1900 - $2000 and will give you a fair kick in the a*** when u boot it. combine this with a good LSD/Diff Ratio, you'll have some fun.

this setup made a dyno proven 146rwkw on my mates old EF 6 and i have the extact same setup now, just havnt put the chip in.

You can get a full proper turbo kit, professionally installed. Running like ~7psi, for around $5000 at TSA.

http://www.gasresearchpc.com.au/

Personally I'd work on drivetrain, suspension, brakes, looks, and some minor NA work. Don't worry about extractors if you plan on going a turbo. Then when you do get the turbo, your car will look hot, handle & control the power, and will go hard. It will give you about 180rwkw.