Results 1 to 14 of 14
Thread: Bad vibration at high speed?
-
04-13-2007, 10:56 PM #1
Bad vibration at high speed?
Since I got my Formula it has had a vibration at high speed. Once you get up past 85-90mph the whole car starts to shake. I got the wheels balanced and still had the same thing. Thought it might be a bad axle or carrier bearing. Rebuilt the whole rear down to new differential and axle shafts. Same thing. Thought I had a couple of bent rims. Changed the wheels and tires. Same thing. Any thoughts. Shocks, wheel bearing, tranny or motor mounts? It's weird because the car is solid as a rock until you get over 85 or so. It also feels like the engine might be breaking up and causing it sometimes. Maybe a bad harmonic balancer or something? It has new plugs, wires, fuel filter, air filter, etc. Any thoughs would be appreciated. Thanks.
Last edited by yellowv; 04-13-2007 at 11:28 PM.
-
04-14-2007, 04:14 AM #2
- Join Date
- Apr 2006
- Location
- North Canton, OH
- Age
- 74
- Posts
- 385
Light Metallic Pewter- 2000 Corvette Coupe
Have you had it checked on Roadforce Balance Equipment?
-
04-14-2007, 08:37 AM #3
-
04-14-2007, 08:47 AM #4
- Join Date
- Aug 2005
- Location
- Ft. Lauderdale, FL
- Age
- 76
- Posts
- 2,706
Sebring Silver- 2000 CamaroSS
Have you considered a bad tire???
Had a ply separation that wasn't visible once.....wouldn't give a shake untill at a certain speed
Could try a different set of tires to eliminate the possibility
-
04-14-2007, 11:04 AM #5
as I said in my original post the car has a brand new set of wheels and tires. It had the same vibration with both the new and old tires and wheels.
-
04-14-2007, 11:18 AM #6
DRIVESHAFT.........
You need to check it with a dial indiacator if possiable. Or as cheap as it is I would take it out real quick by only jacking up the rear so you don't loose any fluid and run it over to have it balanced. I get them dome for $30 out here.Don't be afraid of the bottle!!! Be afraid of your tune!!!
-
04-14-2007, 01:04 PM #7
-
04-14-2007, 01:14 PM #8
- Join Date
- Feb 2007
- Location
- Pa
- Posts
- 276
Red- 99 TA
do you have the steel driveshaft with the harmonic balancer or the aluminum shaft?
-
04-14-2007, 02:33 PM #9
+1 on drive shaft. Also check whether is is speed, rpm or gear specific.
-
04-14-2007, 03:10 PM #10
- Join Date
- Feb 2007
- Location
- Pa
- Posts
- 276
Red- 99 TA
i picked up a vibration after installing a new auburn carrier,swapped it out for a torsen and the vibration was gone.i looked at the auburn carefully and couldn't find any signs it was balanced in any way from the manufactuer.what carrier is in your formula?
-
04-15-2007, 12:45 PM #11
I have an aluminum driveshaft. The carrier is a new Auburn. I recently replaced an old Auburn and it had the same vibration with both, but there are tons of Auburn cars that don't have this problem.
-
04-15-2007, 01:01 PM #12
- Join Date
- Mar 2007
- Location
- NC
- Posts
- 421
NBM- 1998Z28
I'll go with axle bearings. I had a bad vibration and when I went with a rearend rebuild/upgrade to 3:73s the vib went away. All I ever saw wrong was bearing races that were out of round.
-
04-15-2007, 02:12 PM #13
- Join Date
- Feb 2007
- Location
- Pa
- Posts
- 276
Red- 99 TA
see if someone will let you borrow thier steel drive shaft with the balancer.i'll never buy another auburn after my experiance with them.
-
04-15-2007, 05:46 PM #14
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Hot Rod To The Rescue - High-Speed Driveshaft Vibration
By Ed Blown Vert in forum General HelpReplies: 0Last Post: 10-01-2014, 02:11 AM -
Help: vibration increases with speed under heavy accel.
By Camaroguy98 in forum DrivetrainReplies: 10Last Post: 11-22-2012, 03:38 PM -
Land Speed Racers - High-Speed Bombers
By Ed Blown Vert in forum Almost Anything GoesReplies: 0Last Post: 11-16-2010, 05:20 PM -
High speed cornering
By bossho in forum Suspension and HandlingReplies: 8Last Post: 11-09-2009, 04:21 PM -
high idle speed ???
By paq in forum General HelpReplies: 4Last Post: 04-07-2007, 06:50 AM
Bookmarks