Rear rim/tire clearance question

[Sammy]

Originally Posted by MNBoxster

Randall,

I honestly don't know. Like Grizzly said (Happy B'day BTW), make sure you're looking at it fully loaded on the ground. Have you considered things like Driver/Passenger weight, Full Fuel Tank and their possible effect?

Some suspension systems may have that much motion in them while others do not. I never checked it on the Boxster, so I can only recommend that you take it for a test drive and see. To make it easier to determine, I'd apply some chalk or bright Crayon to any parts you suspect may rub. After the test drive, check to see if any of it was rubbed off. 3-4mm is a fairly healthy clearance and I suspect you'll be OK. Hope this helps...

Happy Motoring!... Jim'99

Jim has a great idea here with checking for clearance. I am going to throw in my $0.02 and say that instead of using chalk or Crayon go buy some clay from somewhere and put it on the parts you're worried about rubbing. In one of my previous lives we used clay for various clearance issues particularly with fender wells when the car is in full jounce. After running the car at max handling we were able to measure actual clearance. If the clearance was less than 5mm (rule of thumb and not some magical calculation) we would make adjustments.

BTW - If you do go this route make sure you clean the surface first as the clay was a little tricky.

[RandallNeighbour]

:chicken: I chickened out, my fellow Boxster owners. :chicken:

I called Automotion and bought a set of H&R Trak+ Hubcentric 7mm spacers and 10-52mm lugs, and they'll be here tomorrow.

I cannot fathom getting into my boxster for a 4 hour trip on Friday afternoon and discovering I have a tire/rim rub issues along the way, nor can I fathom driving the trip with my old wheels!

[insite]

Originally Posted by RandallNeighbour

:chicken: I chickened out, my fellow Boxster owners. :chicken:

I called Automotion and bought a set of H&R Trak+ Hubcentric 7mm spacers and 10-52mm lugs, and they'll be here tomorrow.

I cannot fathom getting into my boxster for a 4 hour trip on Friday afternoon and discovering I have a tire/rim rub issues along the way, nor can I fathom driving the trip with my old wheels!

randall - this will take you to a 40mm offset. i don't think this is enough; you'll rub your fenders.

[RandallNeighbour]

Insite, don't tell me that! Do you think I'll now have problems on the outside vs the inside? Arrrgh!

Well, they come in tonight and I'll put them on, drive around and see what happens and report back.

If I rub the fenders, I'll put them on the front wheels so as not to completely waste the $150 I just spent.

Randall, don't worry about a thing. The 7mm spacers will give you the comfort that you are looking for. I went through this ordeal also, and it really scared me also. All you need to do is clear that strut by a cardboard thickness. The 7mm spacer will give you that security. My front i can just slide a piece of cardboard through and thats all you need to clear.

Have a fun trip on the new rims.

The rims already stick out, you will not notice the 7mm spacer at all.

[RandallNeighbour]

I ran home at lunch and installed the spacers. Kronix, I can actually tell they're on there as the tire and wheel now fill out the wheel well nicely!

I have no more clearance issues in the back, and it appears that I will not have any rubbing on the outside fenders either... but I haven't gone through massive potholes and tried that out yet... I'll let you all know if I do discover any fender rubbing.

[insite]

glad it seems to be working out. when are you gonna post some pics? we've got to see these bad boys.