What to use for polishing after porting

[DOHCAccord]

Ok ive searched and looked and i cant find anything saying what to use for polishing the turbo after porting. Ive tried to find cross buffs and that didnt find a real item. shoul i use grinding wheels? sanding wheels? i need something that can be used in a 25krpm grinding tool unless my dremel can handle it.

 

[Kastigir]

Did you have a shop do the porting?

 

[pj91gsx]

I bought tools from standard abrasives. sanding rolls and a cross buffs too.

 

[DOHCAccord]

i did, i just followed what others have done and copied that. now its ported and id like to sand down a few ruff edges

 

[snowborder714]

This might help a bit (although it may be more work than you want to do):
http://www.dsmtuners.com/forums/articles-miscellaneous/302819-how-polish-flashs-way.html

 

[gats0101]

When I ported my manifold and hot side of my turbo I just went to Home Deopot and bought a couple grinding stone bits (not really exactly sure what they are called) and it worked pretty well for smoothing out the runners. They had several different grades when I was there so I went ahead and got a couple coarser ones and a finer one. You could also always sand it by hand, that would be fun .

 

[No_Skillz]

Flashes polishing is more for snazz. All that bling on the inside of a turbo is going to be covered up by carbon buildup after a few hundred miles anyway.

To clean up the inside of a turbo port I would start with wire brush or rough grit (50) sandpaper. Work your way up to perhaps 200 grit.

 

[JusMX141]

I normally start with a carbide burr to remove the most material (not recommended for aluminum):

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Then move to a rotary file to clean up the rough cuts the burr leaves behind:

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The next step is a grinding stone to smooth everything up:

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Lastly, a sanding wheel on a dremel brings out a mirror finish:

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If you're a real die-hard, you can even wet sand the final product for a flawlessly polished surface that carbon will never stick to.

 

[snowborder714]

Another nice thing to use for polishing is flap wheels. Just search Amazon or other sites as they come in different sizes, grits, shank sizes, etc.

 

[blcknspo0ln]

All good advice, but I'd finish the port job with 2 sets of cross-buffs.

 

[turbosax2]

+1 for flap wheels and cross buffs. This kit got my t25 looking bling!

Standard Abrasives 260013 - Standard Abrasives Cross Buff Kits - summitracing.com

 

[DOHCAccord]

thanks for your replys, im going to smooth down any high spots and go ahead and install it. its very smooth,just has a few high spots. its a massive differnce from stock to ported, at least the opening at the wastegate side,