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Difference Between V1 And V3 Turbos

wraith_skyline

By wraith_skyline,
in Engines & Forced Induction

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wraith_skyline Proficient

wraith_skyline

Posted
Posted

Hey guys, i just spat my turbo on the 33 and in a mad panic picked up a rebuilt one, the original had 45V3 on the compressor housing and the new one had 45V1, and had the compressor fins in pairs. Does anyone know if there are any other differences between the 2, coz the new one goes heaps harder

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https://www.sau.com.au/forums/topic/101803-difference-between-v1-and-v3-turbos/
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Dale FZ1 Veteran

Dale FZ1

Posted
Posted
Why did they change to the lighter nylon type wheel on the S2 and R34 turbo's then?

Not having a dig at all, just curious?

Two factors have a major impact on the rate of acceleration of an impeller:

radius

mass

Increase either of them, and the ability to build boost quickly is diminished.

Note that Blade numbers, shape, inducer size also impact on compressor performance.

cheers

Dale

  • 2 years later...
bumble_bee Rising Star

bumble_bee

Posted
Posted

thats the same as mine..

ive got a '96 r33 series2..

i can took a photo of my compressor side..

i got a silver steel wheel..

single blades/fins wheel..

and it says 45V3 :)

so wat the deal?

can someone please explain??

i read that 45V1 & 45V2 is on series 1 R33

and that 45V3 & 45V4 are on series 2 R33

am i rit so far????????????????

then i was lead to believe that...

series 1 have a alloy single blade/fin wheel (is it alloy?or was it steel?????????????) :D

&

series 2 have a nylon twin blade/fin wheel

is this correct?? :D

JET-25L Proficient

JET-25L

Posted
Posted

As far as im aware the "v1" "v2" "v3" means absolutely nothing except the casting number. It has no difference between the numbers. My series 2 had a 45v1 on it and i can guarantee it came like that from factory. I now have a highflowed rb25 turbo and it came with 45v3 on the housing. Means nothing.

Are you sure you're not mistaking it for the black nylon series 2 wheel as it does sorta look like a metal wheel... Unless your turbo has been highflowed otherwise there would be no reason to change that wheel. It's the turbine side that spits anyway there would be no reason for the front to let go before the back.

And the series 2's still have a single blade from memory...

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

For all intents and purposes R33 S1 and R33 S2 turbos are virtually the same.

While the turbo makeup is actually different there is minimally noticeable difference in performance between them

R34 has a slightly larger rear on it (better for hi-flowing) and does make on average 10rwkw more @ 12psi than R33 items due to this

JET-25L Proficient

JET-25L

Posted
Posted

ah yeah i don't know anything about gtr turbo's but i would daresay they dont have the 45v"x" and would have something completely different as they're smaller turbo's and there's two of them. Sounds to me like he's talking about a gtst. Please advise.

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