LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Engine bogs on WOT launch

Thread Tools
 
Search this Thread
 
Old Jun 27, 2006 | 05:35 PM
  #1  
Billsz28b4c's Avatar
Thread Starter
On The Tree
20 Year Member
 
Joined: Jun 2004
Posts: 148
Likes: 1
From: pennsylvania
Default Engine bogs on WOT launch

This problem first started about 2-3 weeks ago where "flooring it" off the line results in a noticable bog until about 2000-2500 rpms where the car accelerates as it normally would. Usually when I would go WOT when launching from a stop my car would spin the tires until about ~25mph. Now, with this bog, the tires don't even chirp from a stop. This bog only occurs from a stop if I go WOT, if I ease the pedal down or go ~1/2 throttle the bog doesnt occur. The car is perfectly drivable under all other circumstances and idles normally. I am very puzzled as to why this is happening. I've used the search button and found that others with the same symptoms were due to a vacuum leak on one of the PCV lines/ malfunctioning valve, or bad plugs and/or wires. I have checked all of the wires, but not the plugs seeing as they are new NGK-tr55's. I also looked over the PCV valve and associated vacuum lines and they all look intact. Any advice on how to better check for vacuum leaks, or suggestions would be greatly appreciated.
Reply
Old Jun 27, 2006 | 05:40 PM
  #2  
MEAN LT1's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2003
Posts: 1,143
Likes: 0
From: jacksonville,FL
Default

Do you have any scanning tools?. Datamaster?
Reply
Old Jun 27, 2006 | 05:44 PM
  #3  
Billsz28b4c's Avatar
Thread Starter
On The Tree
20 Year Member
 
Joined: Jun 2004
Posts: 148
Likes: 1
From: pennsylvania
Default

Originally Posted by MEAN LT1
Do you have any scanning tools?. Datamaster?
Yes....No codes related to this. The only codes showing up are because of the problems the SS spoiler causes with the ABS/ cruise control.
Reply
Old Jun 27, 2006 | 07:09 PM
  #4  
mike1500's Avatar
Launching!
iTrader: (3)
 
Joined: Oct 2005
Posts: 298
Likes: 0
From: Sacramento, CA
Default

Try taking yoru cats off, might be a clogged cat?
Reply
Old Jun 27, 2006 | 08:09 PM
  #5  
SSPerformance's Avatar
8 Second Club
20 Year Member
iTrader: (76)
 
Joined: Jun 2004
Posts: 2,902
Likes: 0
From: Goshen NY
Default

Originally Posted by Billsz28b4c
Yes....No codes related to this. The only codes showing up are because of the problems the SS spoiler causes with the ABS/ cruise control.

the ss spoiler dose not effect the abs in any way
Reply
Old Jun 27, 2006 | 08:11 PM
  #6  
projectcam's Avatar
Launching!
iTrader: (12)
 
Joined: May 2005
Posts: 296
Likes: 0
From: Mesa, Az
Default

Originally Posted by 1984camaroz28
the ss spoiler dose not effect the abs in any way
Yes it does. There is a write up that shows how to fix this. The ABS/CC runs off this circut so these components won't work.


http://shbox.com/1/relay_for_ss_spoiler.jpg

There you go.

Did you just recently start using sticky tires (eg.. Et streets?)
Reply
Old Jun 27, 2006 | 08:16 PM
  #7  
dhdenney's Avatar
TECH Veteran
iTrader: (53)
 
Joined: Feb 2004
Posts: 4,433
Likes: 0
From: Monticello, Kentucky
Default

Originally Posted by Billsz28b4c
Yes....No codes related to this. The only codes showing up are because of the problems the SS spoiler causes with the ABS/ cruise control.
Originally Posted by 1984camaroz28
the ss spoiler dose not effect the abs in any way

The 3rd brake light will affect the cruise.
Reply
Old Jun 27, 2006 | 08:20 PM
  #8  
dhdenney's Avatar
TECH Veteran
iTrader: (53)
 
Joined: Feb 2004
Posts: 4,433
Likes: 0
From: Monticello, Kentucky
Default

Try your fuel filter. Have you checked injector pulsewidths? Does it feel like a misfire or just no acceleration? Perhaps a transmission related problem. Have you checked for leaks in the air intake? Loose hose clamp on the TB? Tear in the boot?
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 Jun 27, 2006 | 10:11 PM
  #9  
Billsz28b4c's Avatar
Thread Starter
On The Tree
20 Year Member
 
Joined: Jun 2004
Posts: 148
Likes: 1
From: pennsylvania
Default

Originally Posted by dhdenney
Try your fuel filter. Have you checked injector pulsewidths? Does it feel like a misfire or just no acceleration? Perhaps a transmission related problem. Have you checked for leaks in the air intake? Loose hose clamp on the TB? Tear in the boot?
I haven't checked the fuel filter/injectors but I will tomorrow. It is definatley not a misfire, its more like substantially less accelleration until about 2000-2500rpms on a WOT launch. I don't beleive its a transmission problem. I was having some trouble fitting the CAI to the MAF, but the bog continued even after that problem was resolved. I haven't changed to stickier tires either. I'll check everything that was suggested tomorrow after work and go from there.
Reply




All times are GMT -5. The time now is 03:11 AM.

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