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

installed a ported tb that igot from a member on here..

Thread Tools
 
Search this Thread
 
Old Mar 22, 2008 | 09:21 PM
  #1  
z28_n_tx's Avatar
Thread Starter
TECH Resident
20 Year Member
iTrader: (7)
 
Joined: Sep 2005
Posts: 894
Likes: 1
From: TexaS
Default installed a ported tb that igot from a member on here..

ive read plenty threads where ppl have high idles after thety install ported tbs..mine didnt have this prob...was i suppose to???
Reply
Old Mar 22, 2008 | 10:05 PM
  #2  
mtxfrk2k1's Avatar
Staging Lane
 
Joined: Feb 2008
Posts: 91
Likes: 0
Default

what are you idling at right now.. mine is setting just under 1,000
Reply
Old Mar 22, 2008 | 10:38 PM
  #3  
00cls1camaross's Avatar
TECH Fanatic
20 Year Member
Photogenic
Liked
iTrader: (10)
 
Joined: Jul 2005
Posts: 1,664
Likes: 37
From: Tempe, AZ
Default

maybe the hole is too big for it to idle normal? check the idle screw to make sure the butterfly plate is completely closed. which tb did you get?
Reply
Old Mar 23, 2008 | 01:33 AM
  #4  
RrCoX22's Avatar
TECH Addict
iTrader: (6)
 
Joined: Jun 2005
Posts: 2,210
Likes: 0
From: Ft. Bragg, NC
Default

a ported TB should have no effect on idle rpm... only to do with crispness of throttle response
Reply
Old Mar 23, 2008 | 01:42 AM
  #5  
jetlag's Avatar
11 Second Club
iTrader: (32)
 
Joined: Jan 2006
Posts: 3,701
Likes: 2
From: Southaven, MS (near Memphis, TN)
Default

Originally Posted by 00cls1camaross
maybe the hole is too big for it to idle normal? check the idle screw to make sure the butterfly plate is completely closed. which tb did you get?
He actually said it didn't have a bad idle....

haha
Reply
Old Mar 23, 2008 | 07:18 AM
  #6  
Red99TA's Avatar
TECH Addict
20 Year Member
iTrader: (11)
 
Joined: Oct 2003
Posts: 2,442
Likes: 6
From: Topeka, KS
Default

Originally Posted by RrCoX22
a ported TB should have no effect on idle rpm... only to do with crispness of throttle response
It will if it was ported incorrectly. Some guys take off too much material around where the blade rests when the throttle is shut. This allows too much air to get around the blade therefore the IAC goes full shut and yet still too much air gets in therefore a high idle results that you can't fix without epoxying the blade hole shut or getting another TB.
Reply
Old Mar 23, 2008 | 09:21 AM
  #7  
RaggedRides's Avatar
12 Second Club
iTrader: (8)
 
Joined: Dec 2007
Posts: 788
Likes: 0
From: Wilkes-barre
Default

Originally Posted by jetlag
He actually said it didn't have a bad idle....

haha
Reply
Old Mar 23, 2008 | 10:18 AM
  #8  
z28_n_tx's Avatar
Thread Starter
TECH Resident
20 Year Member
iTrader: (7)
 
Joined: Sep 2005
Posts: 894
Likes: 1
From: TexaS
Default

It idles fine...normal, just didnt know if it would idle high at first and then go bakc down to normal in few days or so...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Mar 23, 2008 | 04:26 PM
  #9  
RrCoX22's Avatar
TECH Addict
iTrader: (6)
 
Joined: Jun 2005
Posts: 2,210
Likes: 0
From: Ft. Bragg, NC
Default

Originally Posted by Red99TA
It will if it was ported incorrectly. Some guys take off too much material around where the blade rests when the throttle is shut. This allows too much air to get around the blade therefore the IAC goes full shut and yet still too much air gets in therefore a high idle results that you can't fix without epoxying the blade hole shut or getting another TB.
well in that case if someone is porting where the blade rest they might as well hand over their tools and be taking out to the back and beaten with the stupid stick... should probably give up ownership too of whatever car they're drivin

Originally Posted by z28_n_tx
It idles fine...normal, just didnt know if it would idle high at first and then go bakc down to normal in few days or so...
you will be fine... you may get a high idle for your pcm to recalibrate if there was a problem with the port job or the tps was altered
Reply
Old Mar 23, 2008 | 04:35 PM
  #10  
Red99TA's Avatar
TECH Addict
20 Year Member
iTrader: (11)
 
Joined: Oct 2003
Posts: 2,442
Likes: 6
From: Topeka, KS
Default

Originally Posted by RrCoX22
well in that case if someone is porting where the blade rest they might as well hand over their tools and be taking out to the back and beaten with the stupid stick... should probably give up ownership too of whatever car they're drivin

I know from personal experience I ported one for my T/A (the first time I ever ported a TB) and didn't realize I had gone all the way back to where the blade rests. Needless to say I threw that TB in the trashcan!
Reply
Old Mar 24, 2008 | 08:05 AM
  #11  
Bad Blue WS6's Avatar
TECH Addict
iTrader: (41)
 
Joined: Feb 2006
Posts: 2,003
Likes: 0
From: Germantown Hills IL
Default

ouch, you should have recycled,,,, or used the piece to see how far you could go.

Some cars will experience an idle adjustment, does not mean the port is incorrect as stated above, it CAN, but does not always mean that it will happen for that reason. I have seen complete stockers with gaps, sticky points, and other various issues, ect...that going to a PnP'ed unit can cause a re-learning curve to be made.
Reply
Old Mar 25, 2008 | 09:06 PM
  #12  
Nightrydass's Avatar
TECH Enthusiast
 
Joined: Aug 2006
Posts: 623
Likes: 0
From: In your sisters panties
Default

mine stay's @ 800 rpms; same as stock, no issues here.
Reply




All times are GMT -5. The time now is 10:18 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE