Transforming my 14b to a 16g

[habitatguy187]

Alright here's the deal, I have a stock 14b, but I just bought a 7cm (16g) turbine housing for it, now I've read on vfaq that the turbine wheel of a 14b is the same size as the turbine wheel of a 16g, but that the compressor wheel is bigger in the 16g.

I can get a 16g compressor housing for about $15-20 right now, and you can pick up a small 16g compressor wheel on ebay for about $50.

So my question is, can I put a 16g compressor housing and wheel onto my 14b cartridge, add the 7cm turbine housing that I just bought, and have a small 16g? Or will the wheel and housing now fit onto the 14b cartridge, this thread - http://www.dsmtuners.com/forums/bolt-tech/162227-16g-cartridge-14b.html - Says that the cartridges are the same, but I wanted some verification before I bought the other stuff.

Also would I need to have it balanced afterwards? I'm very uneducated when it comes to the actual turbo mechanics so I need all the advice possible. Thanks

 

[99gst_racer]

The center plate is different between the two. The 16g's has a slight taper to it. If converting a 14b to a 16g, you'll need a 16g center plate.

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I can't remember is the compressor covers are the same or not. Jusmx141 would be the one to ask that question. As a matter of fact, if you're serious about converting that turbo, PM him. He's very fluent with rebuilding MHI turbos (as well as many others).

 

[habitatguy187]

What exactly does the center plate do? How much tearing down of the 14b cartridge would replacing this would be involved?

 

[99gst_racer]

What exactly does the center plate do? How much tearing down of the 14b cartridge would replacing this would be involved?

Read: Turbo Rebuild

 

[Steve93Talon]

The actual center housing would also need to be machined for the larger exducer of the 16g wheel.

 

[HIGHPSI4]

Correct, the larger 16G compressor wheel will rub against the front face on a 14b.

 

[habitatguy187]

Ok guys it's looking like this involves alot more than what I origionally thought, thanks for all the info but I'm going to pass on this project.

 

[Afroclipse]

No its not complicated at all.

1. Buy a evo 3 or 18g wheel from FP or ebay (why go small 16g) $80
2. Buy a rebuild kit for a 16g turbo. $80
3. Take your comrpressor cover and CHRA to a machine shop so they can match it to your new wheel. $60 Have them sand blasted while you are there.
4. rebuild your turbo with the http://www.dsmtuners.com/forums/art...303828-td05h-td06-turbo-rebuild-part-1-a.html and http://www.dsmtuners.com/forums/art...303829-td05h-td06-turbo-rebuild-part-2-a.html.
5. Prime your turbo after install and drive away, its much easier than it sounds and can be done by bobo the one legged and armed monkey.

 

[habitatguy187]

Looking at those links this might be in my upgrade future, I keep finding 16g compressor housings on ebay for less than $20, so that with a rebuild kit ($80), plus the small 16g wheel (I want to keep a fast spool) for $55, so I could turn my current 14b into a small 16g for around $150.

For now I'll just wait and see how satisfied/unsatisfied I am with the 7cm turbine housing.

 

[Afroclipse]

Please do your research on turbo's, the small 16g wheel is a waste of time and money.

 

[habitatguy187]

Please do your research on turbo's, the small 16g wheel is a waste of time and money.

http://www.dsmtuners.com/forums/turbo-system-tech/318980-difference-between-small-16g-big-16g.html - dsm-onster

 

[bertrenolds]

The actual center housing would also need to be machined for the larger exducer of the 16g wheel.

Is this true, I need to have the center section machined? Or if I get a 16g center plate and a big 16g compressor housing I shouldn't have to have anything machined when I upgrade my 14b using my big 16g compressor wheel. I have a 7cm exhaust housing.

Could I just get a big 16g turbo rebuild kit http://cgi.ebay.com/ebaymotors/Perf...r_Truck_Parts_Accessories&hash=item19c85038bb since everything else is the same as a 14b beside the 3 parts I'm replacing? compressor housing, big 16g compressor wheel, and 16g center plate.

Here is a picture of the compressor housing I have, it appears to be and ebay knock off but it should still work right?

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[JusMX141]

Is this true, I need to have the center section machined?

Yes.

Could I just get a big 16g turbo rebuild kit Performance TD05 TD06 16g 18g 20g Turbo Repair Kit COMP | eBay since everything else is the same as a 14b beside the 3 parts I'm replacing? compressor housing, big 16g compressor wheel, and 16g center plate.

You'd need a 16G parts kit in addition to getting the center housing machined.

I
Here is a picture of the compressor housing I have, it appears to be and ebay knock off but it should still work right?

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Some knockoff covers do not fit MHI center housings- be sure you try before you buy the rest of your parts.

 

[bertrenolds]

So it needs to be machined because the outside diameter of the compressor wheel on a big 16g is bigger then the 14b compressor wheel? I think I know what you are talking about, the recessed ridge that the 14b compressor wheel sits down in on the center section that is maybe a few MM's recessed. Your saying I have to take that out a little bit all the way around to provide clearance for the compressor wheel?

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I already have a big 16g compressor wheel and I guess I should test fit the compressor housing or try to find a real one, if it fits on there tight with the clip ring I should be fine right?
Even with the machining and rebuilt kit and balancing it's still cheaper then buying a big16g and rebuilding it I believe.

 

[JusMX141]

You'll need that area opened up, correct. The Big 16G exducer is 68mm; I'd think you'd want something slightly larger just for an insurance policy that the wheel doesn't rub.