spacers cause vibration?

[Johnny Danger]

Originally Posted by 23109VC

you are likely VERY right about that. WHERE it goes is just as important and wha tmachine they use. you can use the correct machine, but if th tech just figures it's "close enough" and doens't make it exact - you get a "close enough" result...

i'll find a shop that does performance car alignments, or maybe take it to the dealer for this one. i know the local Porsche dealer DOES have the Hunger 9700....and if I make a fuss, i"m sure I can get them to do it "RIGHT"....

What is the verdict on the front 7 mm spacers ? Are they hubcentric or not ?

[manolo]

I have the 7mm/14mm spacers on my 986S. They are hubcentric. The picture shows the outside of the rear and the inside of the front. Its hard to tell but the inside has a bevel to accomodate the stock hub, then a ring on the outside for the wheel. Other than name, they are very comparable to H&R and not cheap cast aluminum knock offs like a lot of the "billet" parts out there.

[Johnny Danger]

Originally Posted by manolo

I have the 7mm/14mm spacers on my 986S. They are hubcentric. The picture shows the outside of the rear and the inside of the front. Its hard to tell but the inside has a bevel to accomodate the stock hub, then a ring on the outside for the wheel. Other than name, they are very comparable to H&R and not cheap cast aluminum knock offs like a lot of the "billet" parts out there.

What brand are they ?

[manolo]

Same as the OP, Maxspeed.

[Johnny Danger]

Originally Posted by manolo

Same as the OP, Maxspeed.

What does the outside of the 7 mm spacer look like ? Can you post a photo ?

[23109VC]

UPDATE----

I just drove my car for the first time today after getting all the wheels road force balanced. WOW. rides sooooooooooooooooooo smooth. rock solid at 75...85...I didn't go too much faster...but it ddrove GREAT. that was the fix!

thanks to all of you who suggested that!

my spacers are on teh car and they obviously had/have nothign to do with causing vibration... car runs awesome.

[Boxtaboy]

Glad you figured it out. Just so you know, Porsche did issue a TSB indicating that you should not use aftermarket wheel bolts that don't have the floating spherical collars that are on the OEM wheel bolts. That's the 2 piece bolt thingy you are refering to in your previous post. They say those floating collars are specially designed to maintain the proper torque, and that using bolts without them (even when tightened to the proper spec) risks them coming loose later on.

I don't think you will have a problem necessarily, but perhaps a good idea to check he torque on the bolts every once in a while.

This guy bought a set of incorrect sized wheel bolts for his car, and this is what happened:
http://www.youtube.com/watch?v=jv4m41viy4I&feature=youtube_gdata