Home TB porting how to's?
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Joined: May 2002
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From: jacksonville FL
Home TB porting how to's? I am wantting to try and self port my TB tomorrow but I did a search and couldnt find a post that explained how to do it. Can any one give me some how to's or tips on how to do this the right way? And is there a high risk of screwing up my idle from this mod?
TIA, justin
TIA, justin 
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From: Northern Va
TECH Fanatic
Joined: Jan 2003
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From: Northern Va
Re: Home TB porting how to's? Here's my tip for not screwing up idle:
Before disassembly, mark the TB seating circle
with a permanent marker (Sharpie). Then, after
disassembly, put a couple of layers of masking
tape that cover the mark. This will give you
maybe 1/8" of protected throat. Then while you
are happily hogging out aluminum, if you stay
off the tape you are fine, and if you slip one
time the tape gets it, not the TB.
That, and be real careful with any epoxy so as
not to mess up the IAT plunger seat.
Before disassembly, mark the TB seating circle
with a permanent marker (Sharpie). Then, after
disassembly, put a couple of layers of masking
tape that cover the mark. This will give you
maybe 1/8" of protected throat. Then while you
are happily hogging out aluminum, if you stay
off the tape you are fine, and if you slip one
time the tape gets it, not the TB.
That, and be real careful with any epoxy so as
not to mess up the IAT plunger seat.
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Joined: Nov 2001
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From: Fenton, MI
Re: Home TB porting how to's? If you do the epoxy fill in thing, make sure you put big enough holes in there for the PCV and IAC. If the IAC hole is too small, it can cause poor idle. If you have a cam too small of a hole for the IAC can cause REALLY poor idle. 
