difference between 14b and 16g

[DJYoshaBYD]

ok.. I have two turbos... one I just rebuilt and one that needs a rebuild.... I THINK that they are both 14b's, But I cannot tell...

I have opened up both turbos and they look different on the inside... like where all the hoses hook up for the oil and water just looks different... it has more holes in it than the other, but the holes are plugged from the factory....

What are the model numbers written on the turbos and what do they mean? And are there any other ways to determine what turbo is what?

 

[nightspeed87]

I know the the blades are different on the 16g to flow more air, and its a little larger, holds boost longer, and makes a much higher hp number at max efficiency. Definitly better than a 14b.

 

[theycallmedalgo]

ok.. I have two turbos... one I just rebuilt and one that needs a rebuild.... I THINK that they are both 14b's, But I cannot tell...

I have opened up both turbos and they look different on the inside... like where all the hoses hook up for the oil and water just looks different... it has more holes in it than the other, but the holes are plugged from the factory....

What are the model numbers written on the turbos and what do they mean? And are there any other ways to determine what turbo is what?

Do they both have TD05H written on them? If so, look at the turbine blades; if there are double blades its a 16g, if the blades are single then its a 14b. I don't know how else to explain it besides that. Do a an image search for 14b and 16g turbine blades and you'll see what I mean. Good luck

 

[DJYoshaBYD]

yeah.. I just posted that I found that out but for some reason it didnt post.... I know about the blades now, but I want to know why the housing where all the water and oil lines hook up is different from one to the other...

 

[EclipseTrbo420A]

yeah.. I just posted that I found that out but for some reason it didnt post.... I know about the blades now, but I want to know why the housing where all the water and oil lines hook up is different from one to the other...

If your worried about it fitting, they will bolt right in place of each other.

 

[DJYoshaBYD]

no.. that is not what I asked... I just wanted to know the difference between them... can anybody just look at the hose fittings on their 14b and tell me if they see extra holes that look like they were plugged up by the factory... i cant really explain it any clearer... sorry... one has 4 holes that all get used for oil and coolant... the other has the same 4 holes in the same places, but there are extra holes that are plugged...

 

[jking29]

Pictures would help everyone understand what you are trying to figure out.

 

[Cs4g63]

Mine has extra holes that are plugged with what looks like freeze plugs.

 

[DJYoshaBYD]

EXACTLY!!! Thats what I mean... I have one with those and one without... what is the one without them? I hope its not smaller than a 14b

 

[dsmfa9nutter]

I think the guy wants to know if the oil/water holes are different. I don't believe they are but I'm not an expert.

 

[xSojooxShotzx]

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The turbo on the right is a 14b.

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Maybe a better pic

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This is a 16g. I honestly don't know the difference between a big 16g or a small one, but the 16 g has "whiffled" blades.

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Another example of a 16g. Apparently, ti's a "big" 16g, but still don't know the diff visually.

I hope that helps.

 

[xSojooxShotzx]

Sorry for another post...

But this is my turbo. It looks exactly like a 16g, so I'm assuming it is, and I'm also just asssuming it's a regular 16g. Dont' feel like disecting it and tearing it apart to check.

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Howie~

 

[DJYoshaBYD]

tight.... that helps a bit.... as soon as I get the chance to post the pics of both turbos, I will.... I know I dont have a 16g... at least not yet.... how would I know if it was a T25?

 

[shaunman1979]

Sorry for another post...

But this is my turbo. It looks exactly like a 16g, so I'm assuming it is, and I'm also just asssuming it's a regular 16g. Dont' feel like disecting it and tearing it apart to check.

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Howie~

Actually your turbo is a Evo III 16g. In the serial number that is cast in the housing there are two numbers that Identify what turbo you have. These are the numbers that are etched in and not cast. 52=small 42=big 47=evoIII Which is what is clearly shown in your picture. Hope this helps a little.

 

[xSojooxShotzx]

I never knew that...

So, I have a EvoIII 16g. I always thoguth that my car was really sluggish... I'm running stock boost, and stock fuel and stock everything else. Is there anything I should be worried about?

Howie~

 

[xSojooxShotzx]

I foudn this after doing a quick search...

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They're noticably smaller. I have a parts car in the garage and that turbo is tiny.

Howie~

 

[BISHILVR]

^^^ Thats a t-25 or t-28 there. Having the evo3 is a GOOD thing, dont sound so happy!

 

[4speeddsm]

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The turbo on the right is a 14b.

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Maybe a better pic

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This is a 16g. I honestly don't know the difference between a big 16g or a small one, but the 16 g has "whiffled" blades.

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Another example of a 16g. Apparently, ti's a "big" 16g, but still don't know the diff visually.

I hope that helps.

the bottom one looks like an evo 8 16g. the 16g's and 14b's have a small machined spot on the compressor cover in the model number, if you see a "47" stamped in its an evo 3 if you see a "52" stamped in its a small 16

 

[DJYoshaBYD]

where can I find a list of all the model numbers so I can know what I have?

 

[burntheblobs]

where can I find a list of all the model numbers so I can know what I have?

I am so confused as to why you don't know which turbo you have after all these replies. Save us a headache and just post pictures of the turbo's and we will tell you.

 

[garrett21]

I never knew that...

So, I have a EvoIII 16g. I always thoguth that my car was really sluggish... I'm running stock boost, and stock fuel and stock everything else. Is there anything I should be worried about?

Howie~

You have nothing to worry about, if you get a fuel pump and a few other mods you can turn up the boost and your car will not be sluggish. What make you think think it is sluggish? Have you ridden in another stock 2g? do you have a boost gauge to know what your boost is at?

 

[xSojooxShotzx]

Why do I think it's sluggish?

Well, I dont' have a boost gauge yet... Still looking for something that is both aesthetically pleasing and accurate but cheap. I was thinking of getting something as pretty as those Defi gauges at a fraction of the price. Glowshift perhaps?

It doesn't boost brake very well, and I'm just waitting to grab some garage space so I can do a boost leak test. I ran seafoam through it, and I noticed a leak in my exhaust manifold, and I fixed that. Other than that, the boost comes late, around... 3500 - 4000.

When the turbo is fully spooled, it pushes hard, but the lag between spooling and not spooling is somewhat, boring? There's a fairly large DSM group here in Anch, mainly beacuse AWD + Turbo is the only way to go here in Alaska. They always beat me on the jump and gain like 3+ car lengths on me, but then the space stays static.

Howie~

 

[DJYoshaBYD]

I will post pics when I can.... Nevermind then.... like I said, where can I get the model numbers?If that cant be answered, then o well

 

[xSojooxShotzx]

Hey,

I'll give you the step by step to figuring out your turbo.

Tools needed:

1. Phillips head screw driver
2. Elbow Grease

Steps:

1. Open Hood
2. Take off plug that connects to your Mass Airflow Sensor
3. Take off intake piping from your stock airbox and the base of the turbo. *This requires phillips screw driver*
4. Look at the turbine or, just like I did... take a picture
5. If it's whiffled, check the number in the corner.
6. Put everything back the way you found it.

There you go dude.

Howie~

 

[joe]

http://www.vfaq.net/DSM/mods/10faq.html