Rb20/rb25 Turbo Differences

[Jbone]

hey guys,

iv got what is claimed to be a s2 r33 turbo to put on my rb20

so i took off the one off my 32 and put them side my side and they look the same??

they have different numbers on them but just thought that the rb25 one would be a bit more noticeably different??

can anyone tell what specifically to look for to identify the the two?

thanks

[lachlanw]

whats written on the front housing ? rb20 has something 16 . rb25det hav 45V 1 or 2 or 3 or 4 . rb20 has a nipple on the comp housing . rb25det doesnt

[Jbone]

awesome, yeah the one from the 32 says 16v and the rb25 one says 45V4

what do the 1,2,3,4 numbers mean?

whats written on the front housing ? rb20 has something 16 . rb25det hav 45V 1 or 2 or 3 or 4 . rb20 has a nipple on the comp housing . rb25det doesnt

[QWK32]

awesome, yeah the one from the 32 says 16v and the rb25 one says 45V4

what do the 1,2,3,4 numbers mean?

i wouldn't worry about the numbers on the front of the compressor cover, i think they are a random usage. Here is a thread i started ages ago Link, on the 2 different R33 turbo's i came across.

[lachlanw]

roughly the numbers started at 1 and went up to 4 as rb25dets got older . is there anything written on the exhaust housing OP6? i think the 4 might be a neo turbo

[Jbone]

thats an interesteing thread.

my exhaust says 322B and 21U