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-   -   8x17's in front? (http://forums.pelicanparts.com/porsche-911-technical-forum/503609-8x17s-front.html)

glewis80SC 10-08-2009 09:03 AM

Quote:

Originally Posted by jhelgesen (Post 4940201)
Okay, I'm sold, I can get a 225/45/17 in the Nitto, just have to figure out where to buy and have mounted...

Americas Tire was best for me here in So. California, they had them for me in a few days and I was good to go.

Bill Verburg 10-08-2009 09:26 AM

Quote:

Originally Posted by 175K911 (Post 4941685)
....But you do offer an interesting thought asking what front hubs I've got. I should do some measurements, but the conversion to 996TT brakes using Steve Timmins' hardware included his "custom" Porsche hubs. I'm sworn to secrecy but they aren't stock 84-89 Carrera hubs. They're factory off the shelf Porsche parts that he machines to get the stock 996TT rotor to porperly align with the caliper and still use the 911 offset wheels. Could be that the face of this hub is a few mm further inboard than the OE hub. Hmmmm, never even considered that.

My rears are stock hubs of course, but I needed just a couple mm of spacer to clear the caliper face. 5mm is the thinnest I could find, and Jeff Alton made them for me. I'd run 3mm if I could find one. I could run 9.5 in the rear but I really don't want to rearrange my oil lines until I do my 3.6 conversion. Again, camber (-3.25) plays a big part here too.

I suppose I should have added a caveat to my original post that my car is 99% track car, with maybe 500 miles a year on the street. So everything about the suspension, alignment etc are set for optimum track performance.

my guess is it's the hubs that allow your very aggressive front o/s.

In back it's common to run sacers w/ the 9 ET15 wheels. To run 9.5 w/ max sized 275s ET19.5 centers the wheel in the available space, moving the oil line(not a big deal and grinding the trailing arm bolts(sorta scary) and lip work(can get expensive if paint work is also called for) will be needed for the wider tires.

It's been my experience that if it doesn't rub on a track it's ok for the street too.

175K911 10-08-2009 09:58 AM

Quote:

Originally Posted by Bill Verburg (Post 4941771)
my guess is it's the hubs that allow your very aggressive front o/s.

In back it's common to run sacers w/ the 9 ET15 wheels. To run 9.5 w/ max sized 275s ET19.5 centers the wheel in the available space, moving the oil line(not a big deal and grinding the trailing arm bolts(sorta scary) and lip work(can get expensive if paint work is also called for) will be needed for the wider tires.

It's been my experience that if it doesn't rub on a track it's ok for the street too.

I've got the car up on jackstands to flush the brakes before next weekend's DE so I'll take a look at the hubs and see if there's a difference. I should repack the wheel bearings anyway so it's a good excuse to pull the hubs.

I'd considered having Jeff A build me 9.5" rear wheels but decided it would make more sense to start with the size we know works, considering the unknown brake conversion variable. Based on what I run now, I could easily fit another 1/2" back there on the left, but would need to move the oil lines on the right. At the moment I'm OK with running 255/40 in the back so the 9" wheel is perfect..... for now. Gotta save my pennies for the 3.6 at the moment.


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