17" or 18" Inch Wheel Warning on Porsche Bulletin
#1
Burning Brakes
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Just found this warning bullitin regarding 17s and 18's what is the current thinking? Here is the link http://www.asarus.com/jantes17.shtml
Was thinking af putting some 18 x 9 & 18 x 10 on mine, anybody had any problems?
Cheers
Tom
Was thinking af putting some 18 x 9 & 18 x 10 on mine, anybody had any problems?
Cheers
Tom
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#3
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Originally Posted by tommo951
Just found this warning bullitin regarding 17s and 18's what is the current thinking? Here is the link http://www.asarus.com/jantes17.shtml
Was thinking af putting some 18 x 9 & 18 x 10 on mine, anybody had any problems?
Cheers
Tom![Roll Eyes (Sarcastic)](https://rennlist.com/forums/images/smilies/rolleyes.gif)
Was thinking af putting some 18 x 9 & 18 x 10 on mine, anybody had any problems?
Cheers
Tom
![Roll Eyes (Sarcastic)](https://rennlist.com/forums/images/smilies/rolleyes.gif)
I run 8 & 10 x 18, With no spacers 968 caster blocks and Rennbay geometry correction ball joint kit, PZero Corsas, full coil overs w/ 550# and 700# springs, no torsion bars. No problems, and it is streetable.
#7
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Originally Posted by horsepowerfarm
968 caster blocks and Rennbay geometry correction ball joint kit.
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#8
Rennlist Junkie Forever
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Been running 17" rims for years on/off the track with no problems.
Running 18" with updated caster blocks with no problems thus far (getting ready to track the hell out of it .. mu ha ha..)
TonyG
Running 18" with updated caster blocks with no problems thus far (getting ready to track the hell out of it .. mu ha ha..)
TonyG
#10
Burning Brakes
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What does the wheel size have to do with the castor blocks ? If the overall diameter of the tire/wheel combination is the same with 17s as the 16s and the car is not lowered, I'm having trouble seeing why the castor blocks themselves would "know the difference". The Porsche bulletin mentions that the castor spec has changed, and that the eccentrics need to be replaced too. That makes some sense, though I don't hear too much on this board about changing the eccentrics.
I'm about to do this upgrade and wanted to understand it a little better. Anyone know more about this subject ?
I'm about to do this upgrade and wanted to understand it a little better. Anyone know more about this subject ?
#11
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Originally Posted by JDeitz951
Winslow-
I want your front license plate holder. Where did you get it?
I want your front license plate holder. Where did you get it?
Sorry I missed you guys on the sixspeed cuise last weekend. My shoulder is healing nicely.
Factory lic. bracket rubber blocks and screws. Plate frame and cover was from Autozone or some other cheese wiz parts store.
Thanks for the compliment, Zackb911!
#12
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Originally Posted by brad-cam
If the overall diameter of the tire/wheel combination is the same with 17s as the 16s and the car is not lowered, I'm having trouble seeing why the castor blocks themselves would "know the difference".
#13
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I thought that running 17s wasn't a problem? Just curious why all of the comotion. I know that there is a bulletin. But people on this sight have been running 17s for years. Just curious.
#14
Rennlist Member
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It's not a problem per se, you just need to upgrade to 968 caster blocks and eccentric bolts if you plan on doing any serious turning at speed.
Great info about them on Tom Pultz's 944S2.com site. Here's what one looks like installed:
Great info about them on Tom Pultz's 944S2.com site. Here's what one looks like installed: