for those with vibration around 80

[sho95]

I have also been struggling with this problem of a vibration around 80. Here is what I've done so far.
On my old BF goodrich comp ta's balanced four times at different places. alignment done, and now 800 bucks later new michelin pilots which still give the same vibration. Any experts conquer this vibration!!

 

[waddsn1060]

Does it only vibrate when you hit the brakes? Because if it does it then, you need to get your rotors resurfaced.

------------------
91 BLACK MTX

DYNOED: 199.6HP/Est 235 at crank

CENTERFORCE CLUTCH,GRIZZLY PAW THROWOUT BEARING,EIBACH SPRINGS,TOKICO STRUTS,BORLA CATBACK, SHO SHOP HI FLOW Y-PIPE, SUPERCHIP,K&N PANEL FILTER,73MM MAF, BOXLESS,SVO ROD SHIFTER, CUSTOM FRONT AND REAR STRUT TOWER BRACES,PP MOTOR MOUNTS, CRAP TINTS, PIAA 1500XT FOGS, POLICE GRILL,
SONY XPLOD CDX M-620 RECEIVER
Dunlop SP 5000 Asymetrical 225/55/WR16
PLATES: SHO GN 91
AIM:waddsn1060

**WINTER PROJECT: Cold Air Intake**

 

[SHOmuchFUN]

I also have the vibration around 80... But I have a shopping list of things that need to be done. You probably have thrown a weight in your wheel. Balancing your tires sometimes is NOT enough. Take it to a shop and see if the wheels have thrown a weight. I need to get mine spin balanced, the tires remounted, alignment, etc. But haven't had the time or money. My front tires have now worn unevenly and I'll need new tires too... Hope this helps!

------------------
Erik Engstrom
1995 ATX SHO

Eibach Springs/KYB struts
17" TSW REVOs
TOYO PROXES tires
PIAA 1900X platinum foglights
Pilot Motorsports Stainless mufflers w/
custom bent exhaust.
CUSTOM RACTIVE Superflow Intake
White faced guages
Eclipse/MTX/Audiobahn stereo
"SHODOWN" license plate
15% tint
TAURUS SHO window banner
Few stickers to add 15HP

WWW.NESHOC.com OR
http://SHOmuchFUN.freeservers.com

 

[sho95]

Just got the 96 brake upgrade done by Josh at sho nut. Phenomenal compared to the old 95 brakes that have fade from 60 kmh. couldnt be the brakes. I dont use them much at 80 or i try not to anyways.
Maybe this is an axle or something like the u joint. not sure just guessing. It only happens at that speed. confusing the **** out of me just gonna have to drive slower

 

[Diameg]

sho95,

I was considering getting the brake upgrade done by Josh as well.
So you've noticed a big difference?
Did you have to leave the car with him for a while?

 

[sho95]

I went on holidays for a week and dropped it off at his house for that week. Not really sure how long it took but he has good prices for those who dont want to do things like that or dont have time. I havent managed to get any brake fade and I've tryed a couple of times from about 100kmh.. I do notice on the highway if I'm coming up behind someone quickly and have to get on the brakes that they dont fade at highway speeds like the old ones. gonna have to try a faster stop. I always wanted to get my car to go faster, now I'm seeing how fast it will stop HHHMMMM

 

[sdpatt]

Have your wheels been examined for damage due to a curb or pothole impact? Have you had any impacts that could have bent an axle? How are they mounting the wheels? The centering cone should be positioned on the inboard side of the wheel to be hub-centric.

I can understand the BFGs not being round (being BFGs), but the Michelin Pilots are well made tires and should be very round.

------------------
Scott

1991, 252K miles, glass hood, police grill, SVO shifter, Catz fogs,
K&N, Vortech 73mm MAF, PP Y-pipe, Borla cat-back, 190 lph pump
Eibach/Tokico/polyurethane, SHO Shop front & rear strut braces,
16x7.5" Moda R1, 225/55ZR16 Bridgestone RE730, -1 deg camber x 4,
Class II hitch, Silver award at the SHOklahoma Car Show

[This message has been edited by sdpatt (edited 10-17-2001).]

 

[Groo]

Is it a loud, high frequency buzzing that seems to be coming your sunroof? If it is, then it's the plastic lining around your windshield, on the outside of the car.

------------------
1994 ATX: K&N Panel Air filter
Nokya "Arctic White" Headlight Bulbs
Pilot Fog Lights

 

[sho95]

no potholes hit that I am aware of and I am pretty much the only driver. not sure how the sunroof got in here no probs with it.

 

[qiksho]

I have same prob at about 85. 90 on up is smooth but 85 is a little shaky. I just had wheel aligned and balanced 5k ago. New tires but they are pretty cheap. My dad's had a problem too but his was the right front wheel bearing. I know my bearings are good.

------------------

 

[bobdub]

I have the same problem too. I have done all the things that you have done. I recently had the SHO stoppers put on and the mechanic said that my ball joint on the lower control arm is worn out and letting the knuckle move so I figure that might be the problem. I purchased the lower control arms but still have to put them on. If it works I’ll let you know.

 

[1fastsho]

I have a similar problem, but I know it has to do with the crappy BF Goodrich comp T/A Tires I have on the front, trying to wear them out. I have two new Toyo Proxes T-S1 on the rear now. I also have a worn ball joint....but with 205K miles who's complaining.

------------------
Shawn Pasley
Innovative Performance Technologies
770-725-4262
www.iptech.tv
92 SHO red/grey
3.2L Lowered compression(9:1)
stageII cams, Ported/Polished heads,Ported/polished Intake manifold(runners, endtanks, and behind the throttle body), big bore butterflies,80mm maf, LPM,equal length Long Tube Headers and custom Y pipe, Dynomax cat-back, Koni/coil-over suspension, poly-bushings everywhere,26mm Front sway bar, 28mm rear sway bar, solid subframe bushings,subframe connectors, tubular aluminum adjustable rear control arms,shortened shifter,235/45/17 comp T/A ZR's on TSW VX-1's. 15 lbs of boost here I come!

 

[ASSMAN300]

this seems to be a very common problem,,,,,,,,, i have the same thing,,,,,,,, we need to figure out what is causing this vibration and fix it,,,,,, I notice it most when im doing about 90,, and letup on the gas,, without the brake,, the car just coasts back to 60,,, inbetween 90 and 60, is when it vibrates the most.

------------------
93 SHO MTX, White, Every SHO Option Available. She's My Little Rock And Roll.
Also Nicknamed:
THE 5 LITER EATER.
------------------

Completly Stock
K/N Air Filter
10 Disk Changer (Factory)

 

[1slickRED89]

hey guys, this might help. in general if the vibration is comeing from the body of the car, seats, roof and the like. it has to do with the rear tires. if the vibration is coming from the sterring wheel or, if bad enough, the dash. it probably is coming from a front tire problem.

provided you have a good front end under your car. rotate the tires in diffrent patterns side to side and crisscross or whatever, just see what works and what doesn't

Corey
89SHO


[This message has been edited by 1slickRED89 (edited 10-18-2001).]

 

[sho95]

I have had the criss cross tire rotation done and it still did the vibration. Now I have the new tires and it still does it, and if it wears out these tiree I'll be ****** for spending so much money. Sounds like a replacement of every front end part is in order!!!! Very angry!!!

 

[Ric]

Originally posted by bobdub:
I have the same problem too. I have done all the things that you have done. I recently had the SHO stoppers put on and the mechanic said that my ball joint on the lower control arm is worn out and letting the knuckle move so I figure that might be the problem. I purchased the lower control arms but still have to put them on. If it works I’ll let you know.

I have an idea this is the problem. Where did you purchase and what was the cost of the control arms? Also, approximately how much for the installation and alignment?



------------------
Ric & roughSHOd
93 3.2

 

[sho95]

original control arms. tires rotated and balanced at four different shops including ford.

 

[Prophet78]

I am willing to bet it is the ball joints in the control arms or in the tie rods. Replace them. I am sure if they have over 100K it is time to replace them. Give it a shot!

-Jeremy-

------------------
mailto[email protected][email protected]</A>
'93 Red ATX "Red Phoenix"
Rebuilt "Ford Quality Rebuilt Transmission" w/ Shift Kit
Koni Inserts
Eibach Springs
Blazer Modded Fog Lights
Taylor 8mm Spiro Wires
K&N Air Filter
SHO Filler decals
Fish Tanks
Rear window

 

[bobdub]

Alright, I have the lower control arms installed and guess what? The vibration is gone! I think I paid some where around fifty bucks a piece at the local dealer and installed them my self. Easy fix to an on going problem.


[This message has been edited by bobdub (edited 10-29-2001).]

 

[poissonverte]

Yup same here.. at 80 its VERY slight at 81-83 it vibrates like crazy, past that or before those speeds, no problem at all... I just avoid that speed