I am porting my FD intake and have a few things that I have run into that I hope some of you can help with. I will post pics tomarrow to help clarify what I am talking about.



There are 2 sets of butterfly's 3 on the throttle body and 2 on the plenum. I want to remove the 2 on the plenum are they absolutely neccesary??



There was another issue too but I am too tired to remember. I will try to post some pice tomarrow and ask the other question then.



FYI - I am removing all emmisions and installing a haltech and a T-o4E single. So anything on the intake that can be plugged or removed feel free to pipe in and tell me.

The butterflies in the UIM can go, just plug the holes from the rod. You can block off the ACV, AWS, EGR, split air thingy, and even IAC if you want. Also, you can bock off the OMP. Make sure to premix now.

Will haltech control the OMP??



BTW - Thanks you were really helpfull.

I don't think the Haltech can control the OMP, hence the need to block it off, and run premix. Which is an acceptable loss, considering the advantages of the ecu.

Can someone help fill in the blanks I cannot figure out a couple of these.



Thanks.





UIM - ?

ACV - Air control Valve

AWS - ?

EGR - self explanitory

split air thingy - from the pollution pump

IAC - ?

OMP - oil metering pump

UIM..Upper intake manifold

AWS...Automatic warm start.. You know how your car will rev at 3k when you start it cold..Totally unnecessary

IAC? I am drawing a blank.. What is that abbr. ?

Intake air control maybe?

https://www.nopistons.com/forums/upl...1035616580.jpg



Here is a pic of my double throttle removed. You have to drill out the little phillips head screws that hold it in. They are flattened into place.



You should check the thread about this and porting in the performance mods area.

Dave is indeed correct. Idle air control valve.

O.K. Here is a pic of the bottom of the intake. Can I remove these actuators??



http://www.teamfc3s.org/forum/attachment.p...s=&postid=63924





I do not know why I cannot post an image or even ling in an image hosted elseware but here is a link to the pic.

You certainly can.

Why remove the actuators, what's the point in that...just curious.

Oh and FD3BOOST, did you chrome that manifold yourself and if you did, how? thanks

I polished it. It's not chrome, but yes I did it. It's not hard to polish parts. It is very time consuming though.

You really have to have alot of patience or really good buffers.

I can start a thread and pin it in the 3RD GEN FAQ. I do hear that question alot "how did you polish that?"



I'll do it after work.

Th actuators can be removed because you will no longer be needing them after you go nonsequential.

The valves on the bottom of the UIM are for the ISC and AWS. The AWS slams the car to 3,000 rpm as soon as you start it which equals a bad idea. That's why you would ditch it. The ISC or IAC (idle speed or idle air control) changes the idle speed according to to the car's needs. If you turn on your a/c then it will bump up the idle a few hundred rpm. It does the same thing whenever there is high electrical load on the car, i.e. headlights on. i know people who say you don't need the ISC, but I kinda like it. I'm not sure if the haltech will let you keep it, though. good time to check the manual.

I am trying to remove everything that is not neccessary. It will help for 2 reasons one is that I can make for a smotther air flow through the intake tract the other is the less mass there is on the intake the cooler it will be - no hot spots.



Thanks for the info guys.



I do believe the Haltech will allow you to bump the RPM's when you add load such as A/C.



I wish I could post pics of the port job but I am not doing it and my mechanic is very secretive about this stuff.