Skyline Turbo Pictures, Info

[Suspect_1990]

Hey guys a mate of mine gave me a blown VG30 turbo so i decided to strip it, So i thought i would post up the pictures for everyone to have a look at will help clear up some questions and settle some rumours

Blown Shaft & Compressor Wheel

Core with wheel & shaft removed

inside complete Core

Removed Cir-Clip

Fully Disassembled Core

Cir-Clip and sealing plate

Thrust plate? not really sure lol

Compressor side ball bearing looks like has experienced compressor surge or from when the turbine wheel departed from major imbalance and the bearing cage has shattered

2x bearing housings, center spring housing and locking bolt

Turbine Side Bearing still fine has couple tiny cracks

Empty Core

So as u can see these turbos are dual ball bearing

I believe they are hitachi turbos designed for nissan

i also know that all these turbos run the same size turbine wheel so all turbine housings are interchangeable

also the casing number (eg.45v1-45v4) on the RB25,RB25 NEO & VG30 Compressor housings mean nothing as i have seen VG30, R33 S1&2 and R34 turbos with the same number.

hope u all enjoy these pictures thanks for looking

[GTScotT]

Thanks OP, I enjoyed the quick read

Interesting to see that they are dual ball bearing, pitty builders usually ditch the core's when they get highflowed.

[Guilt-Toy]

they ditch the cores because these hitachi cores are not rebuildable. they are bin items. they break you bin them you replace them.

good thread btw... was cool looking at destroyed bits

[Suspect_1990]

Cheers guys was fun pulling it apart and thought I'd post it all up cause there really isnt much information on these turbos and alot of carp about them floating around.

It's a shame that u can't get standard size steel turbine wheels and rebuild kits I think there a good turbo considering there age now,

Also i believe they rebuild these in Japan has my mate got a rebuilt turbo from Japan which I think was off a VQ30 and he put R33 front housing and OP6 turbine housing straight on cause the compressor housing was weird (like a garret style one with bolt on intake and outlet from the compressor housing) and the rear housing had slight crack and unknown casting number. The turbine wheel was ceramic

[GTSBoy]

That VQ probably wasn't rebuilt. They probably just took a VQ30 turbo and washd it with Kero and called it rebuilt. VQ turbos are a reasonable option. They come from cars which are newer and have travelled less miles. Just as importantly, they come from cars that are less likely to cop a hiding than Skylines are. You just slap RB type housings on (because the VQ exhaust housing is also a strange shape and won't bolt up properly to an RB manifold). The OP6 housing would be a similar sort of size to the VQ30 housing so would work alright - and the ceramic turbine is probably exactly the same wheel as on all the RB ones anyway. So "rebuilt" inasmuch as they took shit apart and put it back together, but not "rebuilt" as in someone put new bearing etc through it. FWIW, the question of whether it is possible to economically rebuild these centres was answered more than 10 years ago. And also, pretty much everything about these turbos was known in the general community at least that long ago too.