Ok So I Pulled My Old Turbo Off...

[joeyjoejoejuniorshabadoo]

recently had a turbo upgrade and after pulling off the stocker i was plesantly surprised to find what looks like a steel exhaust wheel

(that would explain not breaking after the 12 months @ 15psi i spose)

the compressor side looks relatively normal and has "45V4" on it

the exhaust side looks perfectly normal as well and has "917A" and "21U"

there is also zero shaft play

[Lazy-Bastard]

The housing numbers are all stock RB25 spec. Sounds like a highflow but trying to find out what cartridge and wheels have been used will be very difficult. Is there a tag on the cartridge? If not, maybe take it to a turbo specialist like GCG and ask them.

Does it really matter though? just add $500 to what you were going to sell it for

[paulr33]

nice find - mine has had 0.85kgcm2 and a lean as all hell tune for around 100,000kms

the car has 195,000 on the clock and its still the standard turbochargers.

[Al]

Take it to ATP, Kyp will be able to give you a rough idea of it's potential HP output.

[Cubes]

Post pics.

[H@ME]

what a wikid suprise..makes me wanna look!

[joeyjoejoejuniorshabadoo]

its now destined for my drift pig... so i spose i'll find out sooner or later...

was just wondering if any of the numbers gave anything away... obviously not

this could also explain why i thought the 2835 spools as fast as stock

[joeyjoejoejuniorshabadoo]

Take it to ATP, Kyp will be able to give you a rough idea of it's potential HP output.

thanx al... may just do that

[Guilt-Toy]

how do you know its a steel wheel?

[W0rp3D]

just take off the comp cover and measure the inducer and exducer, that will confirm or deny if its a high flow atleast, could even just be that someone had it rebuilt and had the steel wheel put in there.

[GeeTR]

Does the magnet trick really work...

[Guilt-Toy]

i would not think so because the shaft is steel.

[ARTZ]

So what ended up happenning here did you find out,

I Just pulled mine out and found the same, both wheels are steel, though are no bigger than standard..

[TiTAN]

do they just look like steel or are they actually steel? do you have pictures?

[ARTZ]

look and feel like steel and make a tinging noise if i tap them...

I thought i read somewhere S1 had standard steel..will try get some pics up today

^^

Also noticed this???

Is it a waste of time getting a highflow with 2IU housing or are they ok??

Edited June 6, 2010 by Arthur T3

[JonnoHR31]

no, they're ceramic.

best way to check is with a magnet

[ARTZ]

Yeah trying to find a magnet i can fit down there..I guess ceramic would ting too...

[Adriano]

Thats stock

[T04GTR]

last time i checked inconel was not magnetic.

[pipster11]

so how do we tell if they are steel wheeled?

i've gotta replace the manifold->turbo gasket soon and i'd love to find a little surprise