Part numbers for RB25 turbo's

[RiverSide]

I am after all of the different part numbers ie: the numbers written on the comp. housing of standard RB25det turbos.

I am aware that there are at least 2 different typres (series 1 and 2)

I have done a search but to no avail.

Thanks for your help.

[RiverSide]

I can't belive no one knows the answer............i thought this wouldbe the forum with the biggest response........

Surely someone knows?????????? Please????

[discopotato03]

I think the only differences are the compresor wheel , early aluminium , late some form of plastic or composite . Don't go looking for AR numbers because they don't have them . The reason they have the Hitachi emblem cast into the exhaust housing is .......

I think the early ones are better because they dont destroy the compressor wheel like later ones do . They are fine in a standard application but a liability when pushed . Ball Bearings don't give turbochargers steroids .

[RiverSide]

I am not after massive figures out of this turbo.........i am simply wanting to verify which series of turbo this is.

I aM NOT AFTER THE A/R specs etc.........just want the numbers that are embossed on the comp. housing to figure out the difference.

Thanks.