Shaking Omg Why, Sick Of It!!!!!!!!

UGH ever since this new motor has been in (2 weeks) it has run beautifully, but whenever i give the car gas and hold it at a certain RPM, the whole damn car shakes and gets worse as it picks up speed, and it happens whether you pin it or just slowly pick up speed...........but as soon as you let off the gas and let the car coast it drives fine..........its whenever you are acelerating. I really need to fix this it is VERY annoying.....THANKS IN ADVANCE I HOPE SOMEONE CAN HELP!!

Loose/bad motor or tranny mount?

How can I check?? I also think it may be my rims.....im gonan put my snow tires on and see if it does it with them to rule that out first.

is the shaking coming through the steering wheel? Would assume so and if its only occuring through the drive train while accelerating i have a couple ideas.

Trans mount is not likely. Try your other ones, but i don't think they are going to be the cause. If it was an out of balance wheel it would continue to shake even after you let off the gas. Are you lowered? If so on what?

Did you ever invest in hub centric rings for your rims? Is so, might want to check and make sure they are still on there from when you got your car back from the shop who did the motor swap. That would cause that issue. If your lowered on stock struts and lowering springs, your drive shafts are prolly kissed good bye. Been there done that once myself.

Those are just a few, ok back to my all nighter studying deal.

Yeah I have 1.6 all around B&G springs on stock struts. Whats a centric hub rings? the struts seem to be fine..........they dont bounce.........how do i check whats wrong

It also shakes the whole car, dash, wheel everything my headlights even bounce a little you can see the light beam bouncing on the road.........

1) Your stock wheels center bore is 57.1mm and that the exact size of your hub. the wheel rides on the hub and wheel bearing, the lug nuts hold the wheel to the hub/bearing assembly

2) Aftermarket wheels have a higher larger center bore normally 73.1mm for most brand rims.

3) A hub centric ring will fill that 16mm gap or w/e the size may be depending on the rim so when it gets mounted to the car, its perfectly centered on the hub. Right now your wheel studs are more than likely holding the weight of your car instead of the hub. This clears up a lot of high speed wheel vibrations

4) Your struts are blown, end of story. When you installed them, did the piston shaft stay compressed or did if try to rebound back out?

5) If you drive on blown struts and high spring rate springs, its causing your wheel to dribble on the pavement like a basketball and causing hell on your drive shafts. If you start to develop a shimmy while accelerating, you can kiss those drive shafts good bye. There are small steel balls that roll around in a race inside the drive shafts in the joints. Those steel bearings a wear grove line into the race housing. I am going to assume those are the original cv shafts too. Which means the wear line is really defined by now. If your struts are dribbling your steering knuckle and control arm up and down, the bearings will start making a new wear pattern over time and will start jumping on and out of the old/ new groves.

6) This goes back to me telling everyone, don't lower your cars on stock struts. They cannot handle it. I've been here, and tore everything apart and replaced it all with new parts trying to figure everything out.

Cody's method on telling everyone to lower your car properly - 1

Lowering your car on stock struts - 0

You have a combination of something listed above....

Well shit i dont know where to get these hub rings, never even knew about them. Also My 2 front tires have ZERO tread, basically slicks, does that have anythingf to do with it? How are KYB GR2 struts, i can afford those. Nothing else better then that....

Hub rings are everywhere. Check e-bay. But make sure you find out your current rims hub bore.

http://cgi.ebay.com/ebaymotors/HUB-CENTRIC-RING-73-57-1-HUBCENTRIC-AUDI-A4-S4-A6-A8_W0QQcmdZViewItemQQcategoryZ42614QQihZ025QQitemZ 380022373418QQrdZ1QQsspagenameZWDVW

Yes your tires being bald could be the problem too. Ones on my pt cruiser are shot and are vibrating like a bitch.

GR-2's are just stock strut replacements. Check e-bay from some Tokico D-specs. You might be able to get away with AGX's since your springs are only 1.6, but i make no guarantee's. KYB warranty's them up to 1.5" of a drop. My prokit does 1.4.

I actually might have a set of plastic 57.1 inner and 67mm outers, and a set of metal 57.1 inner and 73mm outers. I have to see what chris did with the metal ones i let him hang on to. My motegi DPk's have an odd bore size of 70.1mm and it was a bitch to track a set down.

okay my rims are Eagle Alloy 17 inch series 193. Six Spoke, check the eagle website and youll find my exact rim......hopefully you have them cody they will help, and my car is dropped off right now which is getting 2 brand new CV shafts done in the morning, got a deal on them, both shafts for 40$ new :) 60 labour, oh yeahhhhh. See if that helps, And yes the car will have stock struts still lol, i just cant afford $400 for aftermarket ones, thats a lot..............and they all say they are adjustable struts....what the hell is that??? I just want struts like normal ones that dont have this adjusting crap that i can throw on my springs and are cheap enough, preferbly $200 or so for all 4........are dropzone struts any good?

Also Cody, my new springs that Im putting on are Eibach Sportlines 1.7 front and 2.3 in the rear. My 1.6's are for sale when they come off

Got the car back today, the passenger CV axle was pooched, it had no resistance to bend at all, it just flopped, dead weight, it was right pooched......however he said lowering on the stock struts had nothing to do with it, he says its how i drive, which seems right i am always beating on it..........but sometime in the near future if i find a nice set of used struts( Koni, Tokico, something good) I will grab them hopefully.

All cars act differently.

He doesn't know what the hell he's talking about. He's obviously never delt with a lowered car. But at least it was something i suggested in regards to the CV shafts.

once again, Cody is right, thanks :P