Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

How bad should it run untuned?

Thread Tools
 
Search this Thread
 
Old Sep 28, 2008 | 08:41 AM
  #1  
8secbusa's Avatar
Thread Starter
Staging Lane
 
Joined: Apr 2008
Posts: 98
Likes: 1
From: MD
Default How bad should it run untuned?

I am getting my car tuned on Tuesday, my question: How bad should it run untuned? My fear is that I have done something wrong, and will waste my time and money at the shop.
The car does't what to idle, the it will idle for a while, sounds like its missing. I pulled plugs while it was running, every one seems to impact it just as much.

Is this normal or may I have other issues?

I replaced the lifters , springs and cam (224/228/588/288).

Thanks
Reply
Old Sep 28, 2008 | 09:03 AM
  #2  
WYATT318MOPAR's Avatar
TECH Enthusiast
iTrader: (28)
 
Joined: Apr 2008
Posts: 591
Likes: 0
From: Grayson, KY 41143
Default

sounds normal to me....May try to un hook the battery and let the PCM flash so it can attempt to relearn to idle with your current combo but will probably make little impact on it..Your car really has no idea what is going on till it gets a tune..You have changed timing events and airflow that it is not able to compensate for till someone programs it as to what is taking place inside now...I think you will be okay mine sounded terrilble till it got tuned enough to even start and idle in the driveway sounds killer now...That is if I ever get my oil pressure problem fixed...
Reply
Old Sep 28, 2008 | 09:34 AM
  #3  
DKITCHEN's Avatar
12 Second Club
iTrader: (10)
 
Joined: Mar 2007
Posts: 224
Likes: 0
From: Fredericksburg,VA
Default

I recently had a 226/226 114 cam installed and the car was undriveable without some tuning. Being an A4 probably didnt help either, but the car wouldn't idle and stalled immediately after going in gear. After the tune it drives almost stock with more power.
Reply
Old Sep 28, 2008 | 09:50 AM
  #4  
8secbusa's Avatar
Thread Starter
Staging Lane
 
Joined: Apr 2008
Posts: 98
Likes: 1
From: MD
Default

Thanks all. FBODY Central is tuning on Tuesday, I will post results.
Reply
Old Sep 28, 2008 | 09:53 AM
  #5  
MrElectric03's Avatar
TECH Fanatic
15 Year Member
iTrader: (71)
 
Joined: Dec 2007
Posts: 1,885
Likes: 1
From: Southern California
Default

Sounds normal...what really racks your brain is when its on the dyno running up to 7000rpm, thats when you really think "Did I do everything right"?
Reply
Old Sep 28, 2008 | 11:38 AM
  #6  
Goldfinger911's Avatar
TECH Apprentice
iTrader: (24)
 
Joined: Jul 2007
Posts: 319
Likes: 0
From: Sumner, WA
Default

That .288" lift on the exhaust side might cause some running problems. Better switch cams.

Seriously, what everyone has said is true. No tune with that cam and it will run like crap. Be sure and baby it until it gets tuned. Everything is probably fine. Keep us posted on how it turns out.
Reply
Old Sep 30, 2008 | 07:52 PM
  #7  
8secbusa's Avatar
Thread Starter
Staging Lane
 
Joined: Apr 2008
Posts: 98
Likes: 1
From: MD
Default

UPDATE!!!! Tonight F-Body Central tuned the car. It idles like a kitten... With an attitude!! Pulls nice, has really good manners now. Pulls strong to about 6600.
Made 348 at 6300, this was the smallish 224/228 588/588 comp cam.

I hope I have match everything well. I didn't want to go to big on anything. Last outing it went 12.15 at 112.6, since then I added a 12 bolt with 3.73 and the cam. Hoping to see some mid 11's.. Will keep ya posted.
Reply
Old Sep 30, 2008 | 10:41 PM
  #8  
Goldfinger911's Avatar
TECH Apprentice
iTrader: (24)
 
Joined: Jul 2007
Posts: 319
Likes: 0
From: Sumner, WA
Default

Sweet! Awesome news. Having a good tune makes you love your car again.
Keep us posted.
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 Sep 30, 2008 | 11:43 PM
  #9  
conan's Avatar
TECH Senior Member
20 Year Member
iTrader: (5)
 
Joined: May 2004
Posts: 6,492
Likes: 6
From: Back in the Burg
Default

Originally Posted by 8secbusa
UPDATE!!!! Tonight F-Body Central tuned the car. It idles like a kitten... With an attitude!! Pulls nice, has really good manners now. Pulls strong to about 6600.
Made 348 at 6300, this was the smallish 224/228 588/588 comp cam.

I hope I have match everything well. I didn't want to go to big on anything. Last outing it went 12.15 at 112.6, since then I added a 12 bolt with 3.73 and the cam. Hoping to see some mid 11's.. Will keep ya posted.
What other mods do you have?
Reply
Old Sep 30, 2008 | 11:46 PM
  #10  
Camaro396's Avatar
11 Second Club
iTrader: (14)
 
Joined: Oct 2005
Posts: 5,091
Likes: 7
From: Toledo, Oh
Default

I put a ls6 intake, ported tb, ms4 cam, and longtubes on my car, and put quite a few miles on it untuned. It ran like a champ, idled perfect.
Reply
Old Oct 1, 2008 | 12:15 AM
  #11  
ShevrolayZ28's Avatar
TECH Addict
iTrader: (4)
 
Joined: May 2005
Posts: 2,318
Likes: 1
From: Massachusetts
Default

Originally Posted by 8secbusa
I am getting my car tuned on Tuesday, my question: How bad should it run untuned? My fear is that I have done something wrong, and will waste my time and money at the shop.
The car does't what to idle, the it will idle for a while, sounds like its missing. I pulled plugs while it was running, every one seems to impact it just as much.

Is this normal or may I have other issues?

I replaced the lifters , springs and cam (224/228/588/288).

Thanks
Edit: Never mind. I shoulda read the whole thread! Glad it's working for ya. I have the same cam! EDIT AGAIN: except my exhaust lift is a little larger lol.
Reply
Old Oct 10, 2008 | 09:42 AM
  #12  
8secbusa's Avatar
Thread Starter
Staging Lane
 
Joined: Apr 2008
Posts: 98
Likes: 1
From: MD
Default

TRACK UPDATE:
1st pass ran 11.8 at 115, the 1st gear shift happened at 5000, 2nd to 3rd at 6500. So it bogged a bit.
2nd pass I manually shifted at 6500, when I shifted into drive, it acted like I shifted into neutral
3rd pass, used the predator, changed the shift point, all was ok, ran 11.56 at 115.4
Reply
Old Oct 10, 2008 | 09:15 PM
  #13  
blown03mustang's Avatar
11 Second Club
 
Joined: Dec 2007
Posts: 868
Likes: 0
From: Charleston, SC
Default

Originally Posted by Goldfinger911
Sweet! Awesome news. Having a good tune makes you love your car again.Keep us posted.

+1....the tune makes all the difference
Reply
Old Oct 10, 2008 | 11:05 PM
  #14  
wicked-t's Avatar
Teching In
iTrader: (8)
 
Joined: Mar 2006
Posts: 25
Likes: 0
From: Ocean Springs,MS
Default

I had just put in a ms3 cam kit, yank 3600 stall, and a new tranny with all the goodies in it this week. I went to get it tuned today, and got to my fifth pull on the dyno and the car started losen power a 3200rpm. We pulled all the pluges and they were good except for the number six plug it seem to be alittle lean and rockers and pushrods were also good. Had it check and there saying that it's the lifters. what do any of you guys think, help is really needed.
Reply




All times are GMT -5. The time now is 04:04 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