yes - that is exactly what my mechanic said. if you notice, when you are in neutral, there is no vibration. the moment you put the car in gear, be it forward or reverse, the vibrations start whether you are moving or not. if you place the car in reverse and hold down the brake while hitting the accelerator, the vibrations get real bad. this led us to beleive that it could be a motor mount or transmission mount. granted, this will happen with pretty much any vehicle, but it is extremely bad on mine. vibrations came when i installed my 20" wheels, which are only about an inch larger in diameter that stock. only vibrates when i let off of the gas at certain mph, which led to the shop visit. given 187's experience, we though the axle angle could also contribute. once i have the coilovers installed, we will go over the car from top to bottom and see if we can pinpoint exactly where the vibrations are coming from. it may be worth investing in new mounts, depending on cost. then again, it may make things worse. lol. hopefully our collective experiences will lead to a fix. i should have the install done sometime in august...
i dont have any vibration at idle. i still truely believe it has to do with the axle and cj joints.
the whole suspension closer to the engine doesnt make sense to me. if that were the case wouldnt everyone have it? also my car is still considerably a lot lower than stock which means in theory that the suspension is closer to the engine, however after rasing my coils up approx. 1 1/2", 95% of the vibrations went away.
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2006 Lexus GS 300 AWD – Glacier Frost Mica - Black - ML Package
20" x 8.5" Status Knight Wheels Black with Machine Face | Bridgestone G-Force Tires 245/30/20 | BC Racing Coilovers | Carson Tuned Lip Kit | 3000k HID Fogs | Prestigious Society Navi/DVD Override Kit | 15% Tint | Black Roof and Window Trim
Wheel gap can be closely compared to vagina. The more fingers you can fit, the worse off you are.
maybe a different issue on my end then. i always put the car in neutral at stoplights because of the vibration at idle. again, the vibrations when i am underway did not arise until after the wheels, which would point to the axle angle given the difference in height. i will know much more once i have the coils on.
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2006 Lexus GS 300 AWD – Glacier Frost Mica - Black - ML Package
20" x 8.5" Status Knight Wheels Black with Machine Face | Bridgestone G-Force Tires 245/30/20 | BC Racing Coilovers | Carson Tuned Lip Kit | 3000k HID Fogs | Prestigious Society Navi/DVD Override Kit | 15% Tint | Black Roof and Window Trim
Wheel gap can be closely compared to vagina. The more fingers you can fit, the worse off you are.
they came with the wheels according to the shop - and it is a very large and prominent one. i still am thinking of buying just to make sure, as they are only 30 bones. that is what i initially though it could be, but i would think it would vibrate on acceleration as well, and all of the time. right now i have it on decelleration from 70 to 60 and 40 to 30.
yes - that is exactly what my mechanic said. if you notice, when you are in neutral, there is no vibration. the moment you put the car in gear, be it forward or reverse, the vibrations start whether you are moving or not. if you place the car in reverse and hold down the brake while hitting the accelerator, the vibrations get real bad. this led us to beleive that it could be a motor mount or transmission mount. granted, this will happen with pretty much any vehicle, but it is extremely bad on mine. vibrations came when i installed my 20" wheels, which are only about an inch larger in diameter that stock. only vibrates when i let off of the gas at certain mph, which led to the shop visit. given 187's experience, we though the axle angle could also contribute. once i have the coilovers installed, we will go over the car from top to bottom and see if we can pinpoint exactly where the vibrations are coming from. it may be worth investing in new mounts, depending on cost. then again, it may make things worse. lol. hopefully our collective experiences will lead to a fix. i should have the install done sometime in august...
are you saying this happens when your car is not even lowered? i have the same vibration you described, but this never happened when my car was in stock. so this happens at idle after you got your wheels on? i noticed it even with the stock wheels..
i thought about motor mounts too, but i was leaning more toward to geometry of front drive shaft because of AWD.. i have lowered all my cars, FWD and RWD, but this was new to me..
the vibration at idle was there before the wheels, and it was/is tolerable. the vibration upon deceleration came with the new wheels. i have not lowered the car yet, but will do within the next month hopefully. i hope that since the wheels raised the car over an inch that the lowering of roughly an inch and a half will have things balance out. lol. we shall see.
do you have the correct tires? if the tire size is the same, then you did not raise the car.
*edit
let me re-phrase that. if the overall diameter is the same, then you did not raise the car.
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2006 Lexus GS 300 AWD – Glacier Frost Mica - Black - ML Package
20" x 8.5" Status Knight Wheels Black with Machine Face | Bridgestone G-Force Tires 245/30/20 | BC Racing Coilovers | Carson Tuned Lip Kit | 3000k HID Fogs | Prestigious Society Navi/DVD Override Kit | 15% Tint | Black Roof and Window Trim
Wheel gap can be closely compared to vagina. The more fingers you can fit, the worse off you are.
i do not beleive that the overal diameter is the same as stock, but i am not certain. i know that the diameter is the same front to back with the new wheel and tire setup. i am rubbing a little up front, which leads me to believe that the diameter is different than stock. i will check to verify.
Received mine yesterday and threw them on that same evening. Set at 8 all around and it's pretty stiff at the setting. Feels more like a car with sport suspension than a Lexus. I'm gonna move it up to around 12 all around. The install was very simple. The holes from the strut lined up almost perfectly with the holes on the rear control arms as he was ready to put them in, making it easier. My friend who did said it was because the company worked on it while there was a car present the entire time(01a4man's car).
I have pillowball mounts on the front. NO VIBRATION at all, not even when braked and the car is in drive.
Said other cars he did with other coilovers, such as Tein and Function & Form etc. required a lot of moving around to get the top hats to line up with the holes. These slid in very easily. Almost too easily.
The coils are low enough that you are capable of tucking all 4 tires if you choose. You can make the chassis touch the floor if you choose to. I set it at half way and the front bumper is 3" off the ground.
Tungo,
You've had the BCR coil-overs on for some time now. Any issues or quirks you've experienced, corrected, still dealing with at this time? At what setting did you settle on? Did you have to realign your headlights. I believe I read that in a thread from someone else who lowered their GS AWD.
Thanks in advance for your feedback
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Regards,
Evel
'06 GS300 AWD / Mercury Metallic / 35% Window Tint
18" OEM 5-Spoke Wheels / Michelin Pilot Sport AS -Plus
Been driving on the coils since the day they were shipped to me. I don't remember exactly how long, but it's been a few months. In that time, I've put 3k on the car and the impressions from the install and first drive to how they are now hasn't changed at all. When I put the coils on initially, I tucked all 4 wheels and there was a clicking noise from the front when turning. I assumed it was an axle that was at a very bad angle. So I raised it up half an inch and no problems thus far.
The car still rides smooth as expected and the vibrations are very minimal in my car. No vibrations when accelerating from the 10-20mph or any other speed, but I do have the vibrations when my car is in drive and reverse. It's not as bad as some have noticed. The G/F drives the car and she notices these things, and she said it wasn't as noticeable as I thought it was. I have no clunking noise in the rear passenger side as some have speculated. I also have the F-sport sway bars.
I did have to realign the headlights. I raised them as high as they could go. Raised them from the rear where the AFS sensor is.
Hope that helps. These coils do the job and are well worth the investment. I need a camber kit, because my tires are wearing a little on the inside and I hate having to dismount and flip the tires every 5k.
i finally installed my coilovers. looked like the install was very easy - i had a shop do it as i have never done this type of mod before. as of right now, i am very close to tucking all 4 wheels. i have enough room to insert my fingers into the wheel well as long as i follow the curvature of the tire. at this point i have tons of vibration, and i am rubbing over large dips/bumps. i do need to put the car on a lift and grind down a few areas. i will also raise a quarter to half inch to see if that helps with the vibrations. the ride is nice even set to 20 front and 16 rear; i would leave it as low as it is now if it weren't for the vibrations. i did not have rattles in my car, now the vibration is so bad when i let off of the gas that rattles have sprung up everywhere. i will try another alignment and balance to see if that helps as well. i think i will be getting the RWD next time. lol
just wanted to check-in with the AWD folks with the BC Coilovers too see if anyone figured out a solution to the vibrations and wobbling during acceleration. I am hoping to have a smooth and wobble free 2010 and beyond.
lol, nope. still vibrating away. now that the suspension has settled, it's more prominent at idle. i do need to level the car though, so that is a contributing factor. just need to find the time to get to a lift...hope you had a good christmas and new years. keep you posted once i finally finish tweeking.
same here. vibration actually got worse after i raised up all four corners, but they are not evened out. this cold weather just won't let me to work on anything.. feel like stayin indoors..
my rear passenger side is making noise again. what do you guys think this is? pre-load?
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