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My First Porting and Polishing *pics*

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Ski Bum

15+ Year Contributor
231
3
Nov 17, 2005
Citrus Heights, California
During a major overhaul on my GSX I though what the hey I might as well P&P the turbo and O2 housing. I first started the P&P using a dremel kit and a carbide bit, big mistake. It was like cutting a cocunt with a spoon. ROFL

So I picked up a pnematic die grinder and a porting bit from Dejon Tool and that cut like a hot knife through butter. I am very pleased with the reults considering it was my first time. I managed to gasket match the exhaust port of the turbo to both the outlet of the EVO GT exhaust manifold I installed and the O2 housing gasket.

How did I do?
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Porting can be fun, but time consuming. You did a pretty good job! It took me three hours to port match my intake mani to a 7cm gasket and smooth out the collector area. I want to port match the runners but that will be another couple hours of work.
 
jott5555 said:
Gotta say it looks super freakin duper BUT!!! the crack's man that looks like shit! intake mani next!

I know, out of the 2 14bs I had this had the least cracks LOL I figured it would be ok untill I get the 16g.

99gst_racer said:
Future tip: It's much easier to port the turbine housing after you remove it from the rest of the turbo.

Are you able to separate the 2 housing without replacing the seals? I would a definitely done that but I was afriad I would be opening a can of worms.
 
Are you able to separate the 2 housing without replacing the seals?

Yup. There's really no seal between the center section and the turbine housing. That brass(?) ring just keeps the housing on. Loosen it, undo it, then carefully lift the housing off. There will be a small metal pin in the turbine housing that matches up to a hole in the center section to keep the housing in the right position. DON'T lose it It can come out pretty easily. Looks like your porting job is excellent, btw. I loved porting my 14b.
 
Ski Bum said:
Are you able to separate the 2 housing without replacing the seals? I would a definitely done that but I was afriad I would be opening a can of worms.
Yeah. Just remove that band clamp. Then pull the turbine housing from the CHRA. Sometimes it sticks - just tap it with a rubber mallet.

There are no seals there. Reassembly is as easy as the disassembly. No worms. :thumb:
 
Well then I'l keep that in minde the next time I do a port job, thanks guys!
 
~laser_craver~ said:
did you notice a difference in power gains by porting the 2?

I noticed quite a big difference. The spoolup is so much faster a making the car that much more responsive. Ontop of earlier spoolup, going from a couple PSI to 16 happens in an instant. Not sure if this is related but the boost holds steady all the way to redline (MBC).

I would DEFINITELY recommend P&Ping to anyone.

91FORLIFE said:
that looks very very good dude. was that your first time P&P'ing.

Yep, first time, but I had the right tools to do it with and plenty of time, thats probably the key.

Thanks man ;)
 
It took me 2 months to port and polish my 69 Ford 351W heads. Gosh, was that a pain in the ass. But heck, it looks great! Finished it with 280 grit.
 
i know this isn't directly related to your topic, but what kind of compressor did you use to run that dremel?
i'm doing a porting job soon for my 14b and all i have right now is a small compressor only few gallons so i'm not sure if it's gonna be able to run that dremmel on it.
 
SkyLineGtR-R34 said:
i know this isn't directly related to your topic, but what kind of compressor did you use to run that dremel?
i'm doing a porting job soon for my 14b and all i have right now is a small compressor only few gallons so i'm not sure if it's gonna be able to run that dremmel on it.


The die grinder I use required a minimum of 90psi. Depending on the die grinder you have that will determine how well it will work. The other issue is tank size, mine is 60 gallons. The compressor would top out at about 130psi which gave me about 5 minutes of good porting before the pressure dropped too low to power the die grinder.
 
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