I tried the magnet but that didn't work. Any easy way of telling?

I thought like on 32's how they have ceramic wheels that it has a badge on the side of the turbo saying "ceramic wheel" or some crap?

you can tell by looking at them take a pic and post it, with a 32 they are tagged

No this is a 45v3 turbo off a RB25. I got told it had steel wheels but i got my doubts, just need to make sure as i dont want to run 20 psi on a ceramic 1 as you could understand.

They have a ceramic exhaust wheel from memory

Isn't there 2 versions of the 45v3??

yes they do have a ceremic exhaust wheel.

we dont know for sure yet until we ask who u bought it off. pretty sure it would be what he told u as he is not dodgy like that.
will ask him tomorrow for you.
also chuck up a pic an we will have a look for u man

Yes i wont be jumping to conclusions about it thats why i want to find out for sure, I got my doubts if you will be able to tell by looking at it. There is got to be a way of telling, a magnet put on it to me would be a fail safe way of telling but that didnt stick, and that was on the compressor side. I may have to take it into a turbo guy and see what he can tell me. Im not having much luck, last one i got off ebay ended up being a stock RB20 one, which i have already got 2 of. I bought a rb30 one because someone told me they are a bolt on mod, ended up bolting up but its a totaly different set up. So if i get done again ill snap hahaha.

Compressor wheels aren't steel that's why it wont stick to that side they are ALLY

Ah trap for young players, you see this why it pays to not jump to conclusions. Maybe i should just stick to V8s ill check it again tommorow, today im going to catch the mighty Cats kick some saintly butt and throw back several thousand bevvies

Generally with nearly all nissan turbos If its got a 12 sided (hex) nut holding exhaust wheel on its ceramic, if its 6 sided its steel.

right, google the number on the side, that should tell u, he is pretty sure it is steelwheeled.
but, put up a pic so we can have a look.

AH NOW THERE IS SOMETHING I CAN USE, ILL GET ONTO IT TODAY, Cheers

Ok here are the pics, still looks like a ceramic wheel to me. All the signs point that way.

its ceramic

yup, ceramic

MMMM things aren't looking good for me then, so im guessing that 20psi wouldn't be a good idea then?

Well it would be if you want to watch your turbo shit it self and spray cars behind you with shards of ceramic wheel.
nothing more than 14psi mate, any more is a gamble.
You can get it flowed and get a steel wheel put on it but that would be a waste of cash, better to buy a VL turbo as they came with steel wheels.

the most common cause of ceramic turbo failure is heat, you can run 1 bar safely with 1jz turbos with the right dumps and exhaust
i asume the same for nissan turbos?

yeah pretty much

what is this turbo going onto? cos there is no point running an r33 turbo up to 20psi cos they run out of efficiency at about 14

to get 20psi out of one you would have to have a highflowed one, you can pick up used highflow jobs for about $600 from memory

I am putting it on a rb20 4WD skyline, I have 550cc injectors and need to get as much boost in it as i can so to be able to lean it off enough to make power. I can only adjust 30% either way with my apexi safc. Dropped fuel pressure and was hoping to run 20psi to make up the difference. I had 20psi on it before, by mistake, and felt great. Once again im having a steep learning curve here

google nisstune or bikirom

basically $500 will get you a fully reprogrammable daughter board that you install into your ecu and you can then change all the settings, ie injector size, timing fuel maps

your asking for trouble the way your doing it

Hehe the old bigger injectors on stock ecu problem, best with reprogrammable unit whether piggy back/daughterboard or go for gold on complete unit. Its always going to be a pig specially off boost and on the cusp of making boost if ecu is treating the big injectors same as it would stock ones...been there done that haha much nicer when its running nice and lean off boost and a lil fuelly on boost she will feel like a rocket ship then haha plus with programmable unit you can play with the timing for some more power

Unfortunately with the way your going with it, you may be looking for a new engine sometime in the near future. Just a Q as well what is the stock injector flow rate?

Would be a better option to get a new turbo or a high flow item. Saves wasting time with that turbo. Have a look on skylines australia. You might find a cheap upgrade...

or the turbo of a vg30et (not dett)
like a vl turbo but bigger again i think (and possible steel)

stuff all difference

Ok pics are up dude, what do you think now???

Regardless of if the turbo is ceramic or not it wont do what you want it to do.
If you have bigger injectors and a stock ECU there will be no love.
I have been there and done it, save your time.

I have got an Apexi SAFC, it says it can back them off around 30% so that brings it down to around 370cc, with extra boost and dropped fuel pressure im hoping to get a reasonable tune. Im just doing the math here, i not saying it going to work but my tuner reackons it shouldnt be a problem and he been tuning for round 10 years so im not going to argue with him at this point, it will also be running rich and not lean so it really cant hurt much to try. If he has no luck ill just have to go with a NISTUNE or something like that. Ill put your point to him though for sure. Why dont you think it will work????

its not so much the lack of tuneability but the design of a stock rb25 turbo

a stock one will fail at 14 psi because after that i becomes inefficient and after that point the air coming out if it just gets hotter and hotter and makes no more power

if its got steel wheels they are less likely to fail over 14 psi but unless it has been highflowed then its gonna suffer from a similar problem to the stock cermaic unit, it may well boost up to 20 psi fine but if it makes any difference over running 12-14 i'll be supprised

we did this on my old 30et, even my h/f vlt unit produced no more power at 18psi than it did on 14psi, intake temps just got hotter and hotter, thenpower started dropping 5kw per run. Get something a tad bigger and keep the boost down.

Its usually the time the injector stays open for that causes the issues.
For example, stock inj, stock ECU will tell injector to open for ex amount of time.
ECU will do the exact same thing with the bigger injectors for the same amount of time causing way to much fuel. Nissans are factory rich
Give it a go but I think you will end up needing a aftermarket ECU or a Nistune/Drdrift ECU.
I had in my old GTR bigger injectors with stock ecu and within 10 seconds of running it was down to 5 cylinders, wet the plugs and killed them, regardless of heat range/driving style/boost.
The more boost the longer the std ecu will tell the injector to stay open for.
If I was in your posistion I would listen to my tuner tho as long as he is good with rb's/skylines.
If it works you can laugh at me for free! if it dont, I may giggle gently or even manage a rofl.

Thanks Blake you have been a great help, i am going to give my tuner a go at it and if he can pull it off great if not well ill have to bite the bullet. I actually agree with you that it wont work but if you wana laugh its ok with me. It wouldn't be the 1st time i been laughed at and i guarentee it wont be the last. I bet the guy who sold it to me is laughing. I have tried to PM him to sort something out but no reply, I may have to turn it up a notch if i dont get a reply soon. I am trying to do the right thing but there is only so much patience a guy can have.

The more boost part won't work like that I don't reckon. The extra boost will make the ECU read more airflow and try and inject EVEN MORE fuel.

Cheapest option would be to get a mail order remap from Dr Drift then do the fine tuning with the SAFC.

I wont laugh mate, I have been there before! Give it a go tho, it wont cost anything to try!
You might have to go send Bruno around to tap dance his arse....
*Disclaimer* Bruno qoute stolen from some random film

No all good man, i think hes coming to the party