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proper stock turbo 98 r34 gtt NEO

JC71

By JC71,
in R Series (R30, R31, R32, R33, R34)

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JC71 Community Regular

JC71

Posted
Posted

good day,

 

I am looking for a new stock turbo and I have found a few but they are listed as: 

Turbocharger For Nissan RB25DET Skyline R33 45V1 OP6

https://www.ebay.com/itm/265859366624

so would this be a correct replacement for a stock RB25DET NEO engine turbo as well

or are the turbos different from the Rb25det non NEO engines?

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joshuaho96 Veteran

joshuaho96

Posted
Posted
1 hour ago, JC71 said:

good day,

 

I am looking for a new stock turbo and I have found a few but they are listed as: 

Turbocharger For Nissan RB25DET Skyline R33 45V1 OP6

https://www.ebay.com/itm/265859366624

so would this be a correct replacement for a stock RB25DET NEO engine turbo as well

or are the turbos different from the Rb25det non NEO engines?

RB25DET vs DET NEO have different turbos. This thread talks about the differences: 

Personally I would not run these turbos without replacing both the nylon compressor and ceramic turbine. It will increase turbo lag but that is fine if it means there's no risk it sends ceramic shards backwards from internal EGR or a bunch of compressor chunks through your intake tract.

GTSBoy Grand Master

GTSBoy

Posted
Posted
5 hours ago, JC71 said:

Turbocharger For Nissan RB25DET Skyline R33 45V1 OP6

This is problematic. The R33 did not have the OP6 exhaust housing. So the vendor does not really know what they're talking about, regardless of whether the actual turbo is "correct" for either R33 or R34. First warning sign.

3 hours ago, joshuaho96 said:

Personally I would not run these turbos without replacing both the nylon compressor and ceramic turbine. It will increase turbo lag but that is fine if it means there's no risk it sends ceramic shards backwards from internal EGR or a bunch of compressor chunks through your intake tract.

And again, the differences matter. Plus something else.

  1. R34 turbos do not have plastic comp wheels. Alloy.
  2. There is very little to no risk of ceramic turbine making its way back into the engine on a single turbo. That is pretty strictly a GTR thing, which must come down to the straight shot from the turbine scroll back into the exhaust manifold and port opposite. It is essentially unheard of on single turbo engines.

Nevertheless, I would concur with Joshua. Why would anyone want to spend money to put the stock turbo back onto an RB? It's just mental. Buy a decent upgrade, win at life.

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joshuaho96 Veteran

joshuaho96

Posted
Posted (edited)
6 hours ago, GTSBoy said:

This is problematic. The R33 did not have the OP6 exhaust housing. So the vendor does not really know what they're talking about, regardless of whether the actual turbo is "correct" for either R33 or R34. First warning sign.

And again, the differences matter. Plus something else.

  1. R34 turbos do not have plastic comp wheels. Alloy.
  2. There is very little to no risk of ceramic turbine making its way back into the engine on a single turbo. That is pretty strictly a GTR thing, which must come down to the straight shot from the turbine scroll back into the exhaust manifold and port opposite. It is essentially unheard of on single turbo engines.

Nevertheless, I would concur with Joshua. Why would anyone want to spend money to put the stock turbo back onto an RB? It's just mental. Buy a decent upgrade, win at life.

I was just going off what that post mentioned, which is the early AA100 was still plastic compressor, then all later revisions were alloy. It's good to know that the risk is lower on the single turbos but still it's definitely a day-ruining event if a turbo lets go.

Edited by joshuaho96
GTSBoy Grand Master

GTSBoy

Posted
Posted
51 minutes ago, joshuaho96 said:

it's definitely a day-ruining event if a turbo lets go.

Happened to me last month. Finally, after 10+ years of running enough boost to put it at risk.

A small pompf noise. A lot of blue smoke. A broken oxy sensor, and a short drive to my mechanic's shop, seeing as I was just around the corner when it died. And thousands of $$ spent since! Not day ruining, but bad enough.

GTSBoy Grand Master

GTSBoy

Posted
Posted
2 hours ago, JC71 said:

I will be both wheels with steel before putting on car,

 

Well, you certainly wouldn't buy a new OEM Hitachi turbo to then throw away the entire centre. You've already got both the housings you need to have it recored with something with "steel" wheels (actually not steel).

JC71 Community Regular

JC71

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Posted (edited)

I don't have either housing to have it recored....

I would buy new or really nice used (of the correct version ) and plan to send it to Hyper gear to have high flow service and replace the wheels with "steel" (to replace what ever is there, composite/ceramic/plastic/nylon) I will keep searching cause if there are some of these out there (45V1) new.....there has to be the correct style (45V4)  out there, new as well.

Edited by JC71
GTSBoy Grand Master

GTSBoy

Posted
Posted

If you want a highflow from HG (or anyone) you only need housings. Literally, the core can be completely shot. There is no point in buying a good condition, let alone new, turbo.

In fact, if you just pay Tao a little extra, he will supply a set of housings from a blown turbo.

But if you're not in possession of any turbo at all.....just buy a new HG turbo outright? I mean, it's not as if am HG highflow goes right back exactly where the stock turbo came from. The exhaust housing location is the same, but because the core is much smaller, the compressor housing moves backward, requiring changes to the inlet plumbing and all the oil and water lines. So, if you're going to do that, and have to pay for housings, you may as well just buy a different turbo.

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