LS1TECH - Camaro and Firebird Forum Discussion

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

high speed drivetrain vibration

Thread Tools
 
Search this Thread
 
Old Jul 31, 2009 | 11:24 AM
Share
  #1  
Drift_king2007's Avatar
Drift_king2007
Thread Starter
Staging Lane
 
Joined: Jun 2009
Posts: 84
Likes: 0
From: Waco, Texas
Default high speed drivetrain vibration
T56 with 147,xxx miles mods are in my sig. Mainly in high rpm range, 3rd gear, and 4th gear, 135 in 5th gear (no faster cause the vibration is horrible) did I mention I hate vibrations!
any ideas, tranny just worn? rear tranny yolk bushing? help!!! i hate vibrations!
Reply
0
Old Jul 31, 2009 | 11:26 AM
Share
  #2  
hitmanws6's Avatar
hitmanws6
TECH Veteran
iTrader: (20)
 
Joined: Dec 2008
Posts: 4,041
Likes: 5
From: Orange, CA
Default
the big 3 im thinking are the culprit are your motor mounts, out of balance tires or your driveshaft is out of balance. but then again 135 wasnt exactly meant to feel comfortable in our cars
Reply
0
Old Jul 31, 2009 | 11:34 AM
Share
  #3  
myltwon's Avatar
myltwon
TECH Addict
iTrader: (1)
 
Joined: Jul 2004
Posts: 2,965
Likes: 7
From: Palm Harbor, FL
Default
pretty much +1 to everything he said^
Reply
0
Old Jul 31, 2009 | 11:44 AM
Share
  #4  
ss.slp.ls1's Avatar
ss.slp.ls1
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default
+2...
Reply
0
Old Jul 31, 2009 | 12:58 PM
Share
  #5  
z_speedfreak's Avatar
z_speedfreak
TECH Addict
iTrader: (3)
 
Joined: Feb 2006
Posts: 2,123
Likes: 0
From: limbo
Default
140 is smooth as silk in my car. do you have an LS1 DS? hows the tranny mount? def check the tires too.
Reply
0
Old Jul 31, 2009 | 01:30 PM
Share
  #6  
ss.slp.ls1's Avatar
ss.slp.ls1
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default
Originally Posted by z_speedfreak
140 is smooth as silk in my car. do you have an LS1 DS? hows the tranny mount? def check the tires too.
Up to 160 smooth for me.
Reply
0
Old Jul 31, 2009 | 01:32 PM
Share
  #7  
Drift_king2007's Avatar
Drift_king2007
Thread Starter
Staging Lane
 
Joined: Jun 2009
Posts: 84
Likes: 0
From: Waco, Texas
Default
its all stock LT1 drivetrain... lol, tires are smooth as glass at 80 in 6th... i was just wandering if the tranny has a little wear, the rear output bushing seems like it has a good amount of play in it? the motor mounts are good, the tranny mount needs replacing... (that is prolly the majority of it) i just wandered if you guys had the same sort of problem... prolly no big deal.
Reply
0

Trending Topics

Old Jul 31, 2009 | 01:35 PM
Share
  #8  
ss.slp.ls1's Avatar
ss.slp.ls1
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default
Originally Posted by Drift_king2007
its all stock LT1 drivetrain... lol, tires are smooth as glass at 80 in 6th... i was just wandering if the tranny has a little wear, the rear output bushing seems like it has a good amount of play in it? the motor mounts are good, the tranny mount needs replacing... (that is prolly the majority of it) i just wandered if you guys had the same sort of problem... prolly no big deal.
How did you verify that the motor mounts are good. You can't just look at them. Replace the trans mount. Get a LS1 alum ds and see if your vibration is still there.
Reply
0
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Jul 31, 2009 | 01:38 PM
Share
  #9  
z_speedfreak's Avatar
z_speedfreak
TECH Addict
iTrader: (3)
 
Joined: Feb 2006
Posts: 2,123
Likes: 0
From: limbo
Default
Originally Posted by ss.slp.ls1
Up to 160 smooth for me.
lol yep smooth here too, just very..light feeling
Originally Posted by Drift_king2007
its all stock LT1 drivetrain... lol, tires are smooth as glass at 80 in 6th... i was just wandering if the tranny has a little wear, the rear output bushing seems like it has a good amount of play in it? the motor mounts are good, the tranny mount needs replacing... (that is prolly the majority of it) i just wandered if you guys had the same sort of problem... prolly no big deal.
sounds like you might of found your problems also check your pilot bushing.
Reply
0
Old Jul 31, 2009 | 08:40 PM
Share
  #10  
Drift_king2007's Avatar
Drift_king2007
Thread Starter
Staging Lane
 
Joined: Jun 2009
Posts: 84
Likes: 0
From: Waco, Texas
Default
Originally Posted by ss.slp.ls1
How did you verify that the motor mounts are good.
replaced them about 2000 miles ago when i built the motor.


tranny mount is a for sure next thing, i will look into the DS.

thanks for the help guys!
Reply
0
Old Jul 31, 2009 | 08:41 PM
Share
  #11  
Drift_king2007's Avatar
Drift_king2007
Thread Starter
Staging Lane
 
Joined: Jun 2009
Posts: 84
Likes: 0
From: Waco, Texas
Default
Originally Posted by z_speedfreak
sounds like you might of found your problems also check your pilot bushing.
thanks! will do!
Reply
0
Old Aug 2, 2009 | 07:39 AM
Share
  #12  
James Montigny's Avatar
James Montigny
11 Second Club
iTrader: (13)
 
Joined: May 2006
Posts: 2,843
Likes: 0
Default
Originally Posted by Drift_king2007
replaced them about 2000 miles ago when i built the motor.
With rubber or poly?
Reply
0
Old Aug 2, 2009 | 07:47 AM
Share
  #13  
2nd Gen Fl 'bird's Avatar
2nd Gen Fl 'bird
TECH Resident
iTrader: (13)
 
Joined: Mar 2008
Posts: 779
Likes: 1
From: On the coast of somewhere
Default
My buddy's wife had a vibration crop up on her LT1 car(6 speed). Turned out to be the drive shaft. Slung a weight off. Seems to be a common problem.
Reply
0
Old Aug 3, 2009 | 07:16 AM
Share
  #14  
Drift_king2007's Avatar
Drift_king2007
Thread Starter
Staging Lane
 
Joined: Jun 2009
Posts: 84
Likes: 0
From: Waco, Texas
Default
Originally Posted by James Montigny
With rubber or poly?
rubber motor mounts, I am going to get a poly tranny mount though...
Reply
0
Old Aug 3, 2009 | 07:17 AM
Share
  #15  
Drift_king2007's Avatar
Drift_king2007
Thread Starter
Staging Lane
 
Joined: Jun 2009
Posts: 84
Likes: 0
From: Waco, Texas
Default
Originally Posted by 2nd Gen Fl 'bird
My buddy's wife had a vibration crop up on her LT1 car(6 speed). Turned out to be the drive shaft. Slung a weight off. Seems to be a common problem.
thanks, looking for an LS1 aluminium driveshaft.
Reply
0
Tags
Back to Subforum
LT1-LT4 Modifications
View Next Unread
Oilpump drive gear anybody have a fix?




Advanced Search

All times are GMT -5. The time now is 02:47 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE