I posted this thread on ozvr4, but I thought it would be nice to share it.
If you're like me, once you get to the 15psi or so limit of our standard turbos, you may want to upgrade. The standards are tiny and will get you max 180-220kw atw, depending on tuning, transmission type and a few other things.
Here's a photo of one of the standard turbos
A pair of these should get you to 300kw atw (we will find out soon). They can flow 280hp each according to their website. They have 360 degree thrust bearing, so not quite as good as garretts, but they come with a warranty (that includes drift applications) and are a lot lot cheaper.
Cost is from US$200 each on ebay, AU$500-700 each in Australia. Come with a 1 year warranty. Popular with Aussie drift boys.
They are not suited for our manifolds (4 bolt), but with an adapter plate fit fine. No need to change manifold. here's one fitted to the front.
And here's the rear, not much room as you can see.
Mods needed to fit KKR 280s are as follows:
Manifold adapter plates
Oil filter relocated
Front engine mount modified (see photo above)
Thermo fan slightly modified, needs a little trimming.
Rear firewall massaged a little
Custom dump pipes
Custom oil and water lines
Mods recommended before doing the turbos:
Brakes upgraded (either new pads and rotors or brembos)
Trans cooler or better clutch if manual
Custom 3" exhaust and front pipe
New plugs and leads
Better BOV
Decent panel filter and battery in the boot for more space
Decent fuel pump (walbro)
Custom intercooler piping and new core (at least 600 X 210 X 76, you could do this at the same time as fitting the turbos to save a few bucks)
Bigger injectors (at least 450cc, I'm using nipondenso, fit straight in)
A new ECU to handle the upcoming injector control
Oh and a boost controller.
(did I miss anything?)
Now as you can see they definitely fit, but how much power they can actually make on our engines is yet to be discovered. As is when they hit full boost, whether the auto can take the power. Ohh and the other thing is whether the engine internals can safely handle 300kw atw....
Stay tuned.
EDIT: Can't get any of my pics showing on here? Dunno what has changed? Gonna have to post links instead... if anyone can edit it and fix it feel free? got the attached thumbnails working.