Generation IV External Engine LS2 | LS3 | LS7 | L92 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

LS3 Throttlebody will not work on C5

Thread Tools
 
Search this Thread
 
Old Oct 12, 2010 | 04:58 PM
  #1  
Slowc5's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jun 2009
Posts: 36
Likes: 0
From: GA.
Default LS3 Throttlebody will not work on C5

Well, the shop is finishing up my L92/LS3 swapover on my 402 stroker. The problem we're having is, the LS3 throttlebody will not work on my C5? Yes, I have used the search and google. I'm just looking for some answers to get this project finished. Pls help..
Reply
Old Oct 12, 2010 | 05:11 PM
  #2  
RyanSws6's Avatar
12 Second Club
iTrader: (72)
 
Joined: Jan 2008
Posts: 827
Likes: 1
Default

Well yes if you mean the fly by wire throttle. I understand there may be a conversion for it. But I must ask, why not use an aftermarket TB with the throttle cable. A 90 FAST TB should bolt up fine. I had one on my LS3 intake. If you mean something else then you need to provide more details.
Reply
Old Oct 12, 2010 | 05:21 PM
  #3  
Slowc5's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jun 2009
Posts: 36
Likes: 0
From: GA.
Default

Originally Posted by RyanSws6
Well yes if you mean the fly by wire throttle. I understand there may be a conversion for it. But I must ask, why not use an aftermarket TB with the throttle cable. A 90 FAST TB should bolt up fine. I had one on my LS3 intake. If you mean something else then you need to provide more details.
Did not get an aftermarket because I got a good deal on this one when I bought the LS3 intake. I guess I'll have to find an aftermarket and sell the one I have if he can't make it work. Just trying to see what options I have before buying another tb.
Reply
Old Oct 12, 2010 | 06:13 PM
  #4  
devious's Avatar
Staging Lane
15 Year Member
iTrader: (1)
 
Joined: Aug 2007
Posts: 50
Likes: 0
From: Lubbock,Tx
Default

I just got done doing the same thing, I can show you how to make it work as far as the scaler and idle probs. but you wont be able to get rid of the tps errors. The problem is the blade opens opposite of the motor causing a tps error.

I gave up and went to an ls2 tb
Reply
Old Oct 12, 2010 | 06:14 PM
  #5  
Beau@SDPC's Avatar
LS1Tech Sponsor
iTrader: (14)
 
Joined: Feb 2009
Posts: 2,262
Likes: 2
From: Lubbock, TX
Default

Use the LS2 TB. It is a diff style. The one with the "gold" plate will not work correctly on the C5 style cars as far as we know. As Mr Deviousness just pointed out.
Reply
Old Oct 12, 2010 | 06:41 PM
  #6  
Slowc5's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jun 2009
Posts: 36
Likes: 0
From: GA.
Default ls2 tb

Where can I find a ls2 tb to fit my c5/how much? Thanks..
Reply
Old Oct 12, 2010 | 06:52 PM
  #7  
devious's Avatar
Staging Lane
15 Year Member
iTrader: (1)
 
Joined: Aug 2007
Posts: 50
Likes: 0
From: Lubbock,Tx
Default

Yeah man, John and I fought this issue for a couple of nights and figured it out!
Reply
Old Oct 12, 2010 | 07:00 PM
  #8  
Slowc5's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jun 2009
Posts: 36
Likes: 0
From: GA.
Default tb

Thanks guys, I thought I would be riding this week..Guess not, at least until I can get a ls2 tb.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Oct 13, 2010 | 09:32 AM
  #9  
Beau@SDPC's Avatar
LS1Tech Sponsor
iTrader: (14)
 
Joined: Feb 2009
Posts: 2,262
Likes: 2
From: Lubbock, TX
Default

We have them on hand brand new. Price is about $315. They are kinda pricey. If you get a ported one, make sure that its not ported on the back. That will cause all sorts of problems as well. Ask me how I know.
Reply
Old Oct 13, 2010 | 04:59 PM
  #10  
Slowc5's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jun 2009
Posts: 36
Likes: 0
From: GA.
Default

Originally Posted by John@Scoggin
We have them on hand brand new. Price is about $315. They are kinda pricey. If you get a ported one, make sure that its not ported on the back. That will cause all sorts of problems as well. Ask me how I know.
Thanks John, I'm gonna try and find a good used one first. Will I need to purchase any additional adapters to make this work?
Reply
Old Oct 14, 2010 | 07:18 PM
  #11  
KENS80V's Avatar
On The Tree
15 Year Member
Photogenic
iTrader: (16)
 
Joined: Jul 2008
Posts: 144
Likes: 3
From: Oakbank, Manitoba
Default

What you want to look for is a 2005 to 2008 Corvette throttle body.
Reply
Old Oct 14, 2010 | 08:27 PM
  #12  
2xLS1's Avatar
TECH Senior Member
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (25)
 
Joined: Nov 2001
Posts: 5,649
Likes: 9
From: Warr Acres, OK
Default

Does it set P1515 code and go into reduced power mode? I have a customer trying to make a 10 Camaro TB work on a 02 Vette with a Fast 102 intake and that is the problem we are having.
Reply
Old Oct 15, 2010 | 02:52 PM
  #13  
Slowc5's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jun 2009
Posts: 36
Likes: 0
From: GA.
Default

Originally Posted by 2xLS1
Does it set P1515 code and go into reduced power mode? I have a customer trying to make a 10 Camaro TB work on a 02 Vette with a Fast 102 intake and that is the problem we are having.
Yes..
Reply
Old Oct 15, 2010 | 02:54 PM
  #14  
Slowc5's Avatar
Thread Starter
Teching In
iTrader: (2)
 
Joined: Jun 2009
Posts: 36
Likes: 0
From: GA.
Default

I'm going with the LS2 tb. This one is suppose to work..
Reply




All times are GMT -5. The time now is 07:32 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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