2g ported manifold

[Robert503]

Is it very hard to port the 2g manifold, and would I need to get it tuned?

 

[fwdmaster]

Depends on what kind of tool & carbide bit your using,but overall it's very easy, and "No" there is no tuning needed

 

[92AWDHX40]

Tuned no search the threads for porting.

 

[Boost92awd]

You can also check out VFAQ Site - Visual Frequently Answered Questions. I know they have something on there about porting the 2G manifold.

 

[Robert503]

Alright thanks for the help

 

[Robert503]

So I looked for a thread and I couldn't find one, I'm just curious to what you do to the manifold, any help would be appreciated.

 

[deflator]

So I looked for a thread and I couldn't find one, I'm just curious to what you do to the manifold, any help would be appreciated.

You gasket match the ports to the metal gasket and taper the runners as far in as you can get. You also remove the step from the collector area, porting it to match the 7cm turbo to manifold gasket. The vfaq shows all this, and I posted a thread with my results (below). This is on a 2g manifold by the way, which is thicker and less prone to cracking than the 1g.

Use a die grinder, electric or air powered, with a carbide bur to port the metal out. This will produce many shavings you want to contain, they suck to get in your feet. Then smooth with cartridge rolls/sandpaper drums, then a higher grit flap wheel on a dremel, then finish with higher grit buffing pads or cross buffs if you want it mirror smooth.

http://www.dsmtuners.com/forums/bolt-tech/305939-hows-my-porting-coming.html

 

[xioca]

Have fun it takes awhile. ( I did my own but all i did was take out the step and it probably took 2 hours to get it to where I was happy)

 

[spyderturbo007]

Depending on your setup, you might not even want to waste you time. At the power I'm making, it didn't make a difference. Daren and I talked about it a little bit in this thread starting at post #16.

I installed a ported manifold, ported O2 sensor housing and full 3" cat back and saw no increase in airflow. So at my power levels, there was no change.