Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Porting Throttle Body

Thread Tools
 
Search this Thread
 
Old Oct 24, 2008 | 03:47 PM
  #1  
DropTopBird's Avatar
Thread Starter
TECH Resident
15 Year Member
iTrader: (18)
 
Joined: Jan 2006
Posts: 888
Likes: 0
From: Central PA
Default Porting Throttle Body

I know this topic has been beat to death, but I cant find an answer for my question. I started porting my throttle body yesterday and finished the blade and shaft with no problem. The problem I ran into is that a dremel just doesnt seem to work when porting the actual throttle body. Any advice on tips for the dremel, or other tools that will make this easier? Thanks in advance.
Reply
Old Oct 24, 2008 | 10:13 PM
  #2  
mvvette97's Avatar
TECH Fanatic
20 Year Member
iTrader: (18)
 
Joined: Oct 2005
Posts: 1,767
Likes: 2
From: Leon Iowa
Default

I use an air grinder with a spiral type bit. You can buy them at any hardware store or any farm and home. It looks like a spiral cone.
Reply
Old Oct 24, 2008 | 10:15 PM
  #3  
Damian's Avatar
LSX Mechanic
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (89)
 
Joined: Nov 2001
Posts: 10,396
Likes: 14
From: Atlanta
Default

Carbide burs work the best, and take half the time. It's worth paying somebody over trying to port a TB with a dremel.

Tools make the job gentlemen.
Reply
Old Oct 24, 2008 | 10:28 PM
  #4  
Summerwolf's Avatar
TECH Fanatic
15 Year Member
iTrader: (3)
 
Joined: Jul 2006
Posts: 1,060
Likes: 1
Default

its like 50 bucks or something through damian....seriously.
Reply
Old Oct 24, 2008 | 11:53 PM
  #5  
DropTopBird's Avatar
Thread Starter
TECH Resident
15 Year Member
iTrader: (18)
 
Joined: Jan 2006
Posts: 888
Likes: 0
From: Central PA
Default

I know its cheap to get it ported, but Im the kind of guy that likes to do things himself. This is actually for my jeep tb that Im working on while my TA is in the shop. Im mainly just trying to remove this big reduction post blade in that tb. Besides, thats $50 is going towards my cam swap Thanks a lot for the info.

Last edited by DropTopBird; Oct 25, 2008 at 12:03 AM.
Reply
Old Oct 25, 2008 | 01:26 AM
  #6  
02BLACKTAWS6's Avatar
Launching!
 
Joined: Sep 2008
Posts: 243
Likes: 0
From: Massachusetts
Default

Originally Posted by Summerwolf
its like 50 bucks or something through damian....seriously.
Thats my plan. Talk about get more than you pay for. Almost can't wait to take the car off the road... almost.
Reply
Old Oct 25, 2008 | 03:12 AM
  #7  
ae13291's Avatar
Banned
iTrader: (8)
 
Joined: Jun 2007
Posts: 3,093
Likes: 1
From: san fernando valley, california
Default

like its been said b4 why pay someone when you can do it yourself? besides your learning by doing it on your own
Reply
Old Oct 25, 2008 | 06:02 AM
  #8  
ShortChevy's Avatar
12 Second Club
15 Year Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 1,102
Likes: 0
From: Muskegon, MI
Default

I've done a couple. Air grinder and a carbide bit sand paper drum to finish it off. Why pay someone if you can do it yourself and not have to put the car down for a week.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-1

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-2

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-3

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-4

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-5

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-6

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-7

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-8

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-9

10 Camaros You Should Never Buy

 
Old Oct 25, 2008 | 12:01 PM
  #9  
HMERacing's Avatar
TECH Regular
 
Joined: May 2008
Posts: 458
Likes: 0
From: Marissa, Il
Default

Originally Posted by ShortChevy
I've done a couple. Air grinder and a carbide bit sand paper drum to finish it off. Why pay someone if you can do it yourself and not have to put the car down for a week.
So you dont Fu(k it up, because you did something wrong or you did more harm than good. $50 bucks isnt bad considering they know what to port and what not to. there is even a company that uses a CNC on them that looks awesome, But something like $120 bucks.
Reply
Old Oct 25, 2008 | 01:26 PM
  #10  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

i love doing **** myself but i had to really step back and say it was worth the 50 dollars i spent. i knew it was worth it bc you got somebody doing it that has done a ton of them. you are paying for their knowledge and past experience, something a first timer doesn't have. besides for what we spend on other **** whats another 50?? thanks again damian.
Reply
Old Oct 25, 2008 | 04:35 PM
  #11  
Pharcyde50's Avatar
11 Second Club
iTrader: (11)
 
Joined: Aug 2005
Posts: 574
Likes: 0
From: St. Petersburg, FL
Default

I used the sanding drums on the dremel and never had a problem.
Reply




All times are GMT -5. The time now is 02:12 PM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE