It's This Enough Porting?

[WHITE GST]

What Do You Guys Think?




Thanks...

 

[flyinghighlm]

Hey, I have ported my 16G but if you look at your pics, 3 and 4...you can go further...that step in the metal that you still have that can be takin all the way out if you have the time.

I followed this VFAQ when I did mine,
http://www.vfaq.com/index-main.html

What did you use to port it? I used a freakin dremel and some good bits, not much that thing can not do,

 

[staticbrainwash]

I agree with the above. It looks like you can bring the step all the way down, make sure you keep it conical. Also, bring the passage to the WG down a little too. That will definitely help too.

Otherwise it looks decent.

Follow that vfaq link, and you should be solid.

 

[WHITE GST]

Hey, I have ported my 16G but if you look at your pics, 3 and 4...you can go further...that step in the metal that you still have that can be takin all the way out if you have the time.

I followed this VFAQ when I did mine,
http://www.vfaq.com/index-main.html

What did you use to port it? I used a freakin dremel and some good bits, not much that thing can not do,

I USED A DREMEL WITH A CARBIDE BIT, WHAT DO YOU THINK ABOUT THE FLAPPER DOOR?, I TOOK IT OFF MY OLD T25 AND PUT IT ON THIS ONE, IT IS BIGGER THAN THE STOCK 16G FLAPPER.

 

[T9S1i]

make sure it closes all the way. Id shine a light from one side and see if any leaks and if it does try to smooth it down there. Also, id port your manifold collector and that turbine inlet to match a 7cm gasket.

Also, if you are battling boost creep, and plan to stay internal for the life of this turbo (well the turbine housing at least) you could cut the section out between the wastegate flapper passage and the exhaust wheel outlet like PTE does with the internal gated SCM series turbos. Im not sure what you would have to do to your O2 housing if you do this mod. Anyone with knowledge on that can chime in.

 

[blcknspo0ln]

I run an undivided (like the pic above) turbine housing with a standard ported 2g o2 and it's fine.

 

[Dream On]

Use a die grinder and a carbide bit. The dremel is going to take forever.

 

[slugsgomoo]

I run an undivided (like the pic above) turbine housing with a standard ported 2g o2 and it's fine.

it's unfortunate that if you look at how a turbo operates, ideally you don't even merge the wastegate gasses until at least 18" after the turbine itself.

The reason that it prevents creep is that as the gate starts to come open (this happens at like 8-9psi on a 14b/16g at least) the gasses zoink over and put pressure on the wrong side of the turbine.

So it's great, if you want to run no boost all the time. It sucks if you want to actually push the performance level.

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properly ported a turbo shouldn't boost creep with a proper turbine housing. If you're running too big a turbo to keep the boost down, either you need to run more boost and your turbo is too big for the setup, or you need to move to an external WG that can move more air.

 

[blcknspo0ln]

Thank you for the lesson, as if I didn't know that already? Anyway, I'm running plenty boost to not have the need for the undivided housing (nor worry about boost creep), but unfortunately the BB5031RLE I bought only came with that hotside from PTE (at least when I ordered it). Since I'll be running this turbo internally for the remainder of it's life and don't plan on dumping my o2, the little nuance of turbo flow and such doesn't really bother me. Hell, I plan on running 11's this year with the housing and I doubt that undivided wastegate is going to slow me down

 

[oldman]

Thank you for the lesson, as if I didn't know that already? Anyway, I'm running plenty boost to not have the need for the undivided housing (nor worry about boost creep), but unfortunately the BB5031RLE I bought only came with that hotside from PTE (at least when I ordered it). Since I'll be running this turbo internally for the remainder of it's life and don't plan on dumping my o2, the little nuance of turbo flow and such doesn't really bother me. Hell, I plan on running 11's this year with the housing and I doubt that undivided wastegate is going to slow me down

Running an undivided housing to cure boost creep is no different than putting on a cat.

To OP, I agree with most that alot more work needs to be done on the inlet, I would say you're about 30% done at best. http://www.dsmtuners.com/forums/showthread.php?t=186525