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Can anyone identify this turbo?


IZichard

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The id stamping has worn off this turbo, can't really even see a faint outline. (actually I can just make out a "2" but that doesn't really help since they all have a 2 in that position)

 

So I was hoping someone with a little more experience would have an idea of which turbo it may be. I've narrowed it down to one of vf23,24,28,29 with what I have read online.

 

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4KeoxoO.jpg

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5 minutes ago, GC8E2DD said:

That turbine wheel has been severely chopped.

As in damage to the leading edge or contact with the compressor housing?

 

Edit: Nvm you said turbine.

 

How bad are we talking? That whole angle shouldn't be there? lol

 

It is such a perfect edge on all of the blades, it feels like it was made like that. What do I know though haha.

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Yeah, that whole angle shouldn't be there xD

 


I'm basing this off an assumption that these turbos have more or less the same turbine wheels and my old 24 didn't have the blades clipped like that.

 

I guess it could have been done professionally, but to what end?

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7 minutes ago, GC8E2DD said:

Yeah, that whole angle shouldn't be there xD

 


I'm basing this off an assumption that these turbos have more or less the same turbine wheels and my old 24 didn't have the blades clipped like that.

 

I guess it could have been done professionally, but to what end?

Interesting.... The turbine looks different to my vf29 also.

 

Here is a really close up picture I used flash so the lighting is weird. The cuts look so perfect and symmetrical. What would cutting it even gain you?

 

WjjS799.jpg

 

 

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12 minutes ago, ADIKT said:

This thread may help 

 

 

Yeah I had seen that info around in a couple places, very helpful.

It actually rules out vf24, leave only vf23,vf28,vf29 left as possiblities.

 

9 minutes ago, Kiwi_Fozze said:

Could have been fettled by merch? He often takes off the original markings on the compressor housing, but then again he normally attached his own Id on it too

Hmmmm... maybe I have to just run it and find out.

 

I did some brief reading about clipped turbine wheels and supposedly you lose a bit of spool but it gives a slight improvement in holding boost to redline by helping the exhaust housing flow better. Very mixed opinions on whether it is a good idea or not.

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The VF23-24-28-29 are BB turbos use the the same size compressor wheel and 11 blade turbine wheel. The VF23 has a P20 exhaust housing A/R while the rest have P18.

The code on your exhaust housing is H4 for P18. H3 for P20.

The turbine wheel has been cut back at the exducer which improves exhaust flow and improves top end power but reduces efficiency and consequently spool up. 

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2 minutes ago, telemekas said:

The VF23-24-28-29 are BB turbos use the the same size compressor wheel and 11 blade turbine wheel. The VF23 has a P20 exhaust housing A/R while the rest have P18.

The code on your exhaust housing is H4 for P18. H3 for P20.

The turbine wheel has been cut back at the exducer which improves exhaust flow and improves top end power but reduces efficiency and consequently spool up. 

Cheers for the info!

 

 

So that means it is either a vf28 or vf29 (which are basically the same) that has been tinkered with for better top end. I wonder how this compares to a vf30 on the bottom end now.

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4 hours ago, IZichard said:

Perhaps I was misinformed but I thought the vf28/29 spooled a little earlier than the vf30 since they have roller bearings vs journal bearing on the vf30

 

Oh right yea. The people that make those claims on the internet havent had anything reasonable to compare it too. The real world difference is f all theyre both tiny and come on fast in transient conditions.

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It's not how we identify the turbo, it's what the turbo identifies as. I think it might be a trans or bi turbo who identifies as a twin scroll. Or maybe even turbo-fluid. Not all turbo who identify as fluid have a turbo fluid resevoir, it's just how they feel at a particular part of the rev range. 

 

Don't judge. 

 

Edit: some of my best friends are turbos.

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8 minutes ago, Berg said:

It's not how we identify the turbo, it's what the turbo identifies as. I think it might be a trans or bi turbo who identifies as a twin scroll. Or maybe even turbo-fluid. Not all turbo who identify as fluid have a turbo fluid resevoir, it's just how they feel at a particular part of the rev range. 

 

Don't judge. 

 

Edit: some of my best friends are turbos.

 

Gold :D

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41 minutes ago, Berg said:

It's not how we identify the turbo, it's what the turbo identifies as. I think it might be a trans or bi turbo who identifies as a twin scroll. Or maybe even turbo-fluid. Not all turbo who identify as fluid have a turbo fluid resevoir, it's just how they feel at a particular part of the rev range. 

 

Don't judge. 

 

Edit: some of my best friends are turbos.

I never thought about it that way. Maybe I should have just asked it. 🤔

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7 hours ago, Berg said:

It's not how we identify the turbo, it's what the turbo identifies as. I think it might be a trans or bi turbo who identifies as a twin scroll. Or maybe even turbo-fluid. Not all turbo who identify as fluid have a turbo fluid resevoir, it's just how they feel at a particular part of the rev range. 

 

Don't judge. 

 

Edit: some of my best friends are turbos.

aaaand turbo of the year award goes to

 

AKUdvQi.jpg

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