Porting 1G manifold collectors to = EVO mani?

[tsi_turboawd]

How would i go about porting the collectors and such, other than just porting the ports of the manifold to match it to an EVO manifold?

 

[steve]

Try asking your question again, I can't figure out what your trying to say considering the collector on a turbo DSM is the part of the exhaust manifold the the turbo connects to. The place where all the exhaust runners collect... Are you asking what you should port on a EVO exhaust manifold or are you asking if you can port a 1G manifold collector to the same size as the EVO 3 one?

Steve

 

[tsi_turboawd]

Originally posted by steve
or are you asking if you can port a 1G manifold collector to the same size as the EVO 3 one?

Steve

that one

 

[steve]

Sure you can open up the collector to match say the 7cm exhaust inlet on something like a 16G. But keep in mind that 1G exhaust manifolds crack between the runners and at the top of the collector over time so you would be better off starting with a 2G or EVO manifold.

Steve

 

[DrLo]

I wouldn't be surprised if yours is already cracked.. upgrade time

 

[tsi_turboawd]

how much should i port it? .. maybe ill just port match to gasket everything ( mani/o2/turbo)

I hear a whistle when car is 1st started, but goes away. There could be a crack but i dont see any cracks visible. "So if u have a 2G manifold please hurry up and send one to me ASAP."

Im going to start tonight and need to finish before end of next week before school starts. TY

 

[steve]

Others might disagree but my suggestion is to leave the runners alone focus on porting the collector and removing the step from both the turbo and the exhaust manifold. Port the wastegate side of both the turbo and the O2 housing and really open up the lower end of the wastegate passage in the O2. The open up the outlet of the O2 to match up to your DP.
Gasket matching the exhaust manifold runners will create a bubble where the exhaust expands and then has to squeeze back down to get out the collector. Just leave them be beyond cleaning up any surface roughness.
Replace all the existing exhaust manifold studs that go into the head. Get some SS ones or at least new OEM studs and nuts.
Have fun it will be good practice for porting your next one after the 1G cracks.

Steve

 

[tsi_turboawd]

talking about studs .. I BROKE two STUDS on the exh. manifold, and the other half of the stud is left on the head STUCK! ..im getting new studs

but 1st, HOW do i TAKE OUT the studs outta there?!

help

 

[gritsak]

Originally posted by tsi_turboawd
talking about studs .. I BROKE two STUDS on the exh. manifold, and the other half of the stud is left on the head STUCK! ..im getting new studs

but 1st, HOW do i TAKE OUT the studs outta there?!

help

www.vfaq.com is your friend

 

[steve]

Originally posted by tsi_turboawd
talking about studs .. I BROKE two STUDS on the exh. manifold, and the other half of the stud is left on the head STUCK! ..im getting new studs

but 1st, HOW do i TAKE OUT the studs outta there?!

Imagine that
It depends on if any of the stud is above the surface of the head.
All of mine were broken flush with the top of the exhaust flange so I could thread two nuts on, force then together to lock them and unthread the stud from the head. If nothing is sticking out you'll need to use an EZout of some sort.

Steve

 

[tsi_turboawd]

Unfortunately NONE of the broken studs is sticking out, and NO Vfaq didnt help either, it didnt say anything about "removing" broken studs

and i never heard of EZout

 

[gritsak]

Originally posted by tsi_turboawd
Unfortunately NONE of the broken studs is sticking out, and NO Vfaq didnt help either, it didnt say anything about "removing" broken studs

and i never heard of EZout

um maybe you should look a little harder there, slick...its under the engine section, imagine that, a whole link dedicated to how to removie broken exhaust manifold studs

ill even make it easy for you heres the link

http://www.myzero.com/engine/studs.html

 

[1969MIB]

will you ez out anything in aluminum drill allll the way through the bolt, not partially, it helps alopt, and drill STRAIGHT.

 

[tsi_turboawd]

ok thanks