Porting TB Question
Thread Starter
TECH Apprentice
iTrader: (8)
Joined: Jul 2003
Posts: 392
Likes: 0
From: The city of Hewitt in Central Texas
Porting TB Question I am thinking of porting and polishing the TB while I have my rear end apart. I can find plenty in the search but i was wondering if it is absolutely necessary to epoxy the hole? If it is necessary how do you know where to drill the two holes and what size do you drill them?
Thread Starter
TECH Apprentice
iTrader: (8)
Joined: Jul 2003
Posts: 392
Likes: 0
From: The city of Hewitt in Central Texas
So do you just grind off to the little ridge? How do you know how much to take off? Also, how much bigger does it make the inlet to the TB?
TECH Regular
Joined: Sep 2004
Posts: 404
Likes: 0
From: Raleigh, NC
Just remove the ridge. When the ridge is gone you are done grinding, just take your time so you do not remove any material where the blade sits. Then get a beverage and start sanding from the blade to the inlet.
Trending Topics
I just recently ported mine and did do the epoxy. I wouldn't say it's absolutely necessary, really just a matter of preference. I used plumber putty and used a couple bic pens coated in pam (for easy removal) to create the holes while the plumbers putty was still pliable. Once it dried I just cleaned up the holes with the dremel. As for the hole location it's pretty easy to estimate where to make them because you're not working with a big area.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Launching!
Joined: Jan 2002
Posts: 224
Likes: 0
From: Monticello, MN
Originally Posted by 00Vette
There are quite a few places who will do them for you pretty cheap and have insane turn around on them...............
Just some food for thought!!!
Just some food for thought!!!
$75.00...can't beat that with a stick. They polish it, too. Look on the lower right of the page.
http://www.neweraperformanceparts.co...61&NID=2387504
Ed
Here's an excellent writeup of how to port a stock TB.
Download files from post #32
Look at the pics in those zip files and u'll see exactly where the holes need to be. When I drilled the holes from when I put JB weld on my TB, I started with a really small drill bit and worked my way up and it seemed to work really well.
Download files from post #32
Look at the pics in those zip files and u'll see exactly where the holes need to be. When I drilled the holes from when I put JB weld on my TB, I started with a really small drill bit and worked my way up and it seemed to work really well.
Originally Posted by BriancWS6
Bo White doesn't epoxy the hole either, he too finds it not worth the trouble. Good luck!
I epoxied mine (putty style) and used knitting needles from WalMart as the tubing - they are thin-wall aluminum just perfect for this application.
It seems clear to me that the large, irregular area in the stock TB would disrupt airflow. However, it would be nice if someone could flow a stock TB, a ported TB, and then the ported TB epoxied.
Steve
It seems clear to me that the large, irregular area in the stock TB would disrupt airflow. However, it would be nice if someone could flow a stock TB, a ported TB, and then the ported TB epoxied.
Steve
Originally Posted by Xtnct00WS6
I'd emagine that the reason he doesn't is because it would triple his turnaround time and the gains from the extra effort isn't worth it when trying to run a business. If you're porting your own TB, I'd suggest doing it. TB porting is all about getting every last bit of hp that you can so why leave some on the table?
