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PostPosted: Tue Dec 03, 2013 1:13 pm 
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Forum Racer
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Posts: 492
Location: Scotts Valley, CA
Hey Spec Z people! I am working with a wheel manufacturer to get a perfect fitment wheel available for Spec Z. I built a car recently for a customer and had to buy special custom ordered hub centric 20mm spacers to get the current Enkei RPF1's to fit right. The off the shelf spacers normally sold with them are hub centric to the car but not to the wheel which kinda defeats the purpose. I hate running spacers or lame plastic rings so I wanted a better option.

Anyway, since I see no reason to run 10's in the rear, at least not enough to kill the convenience and cost effectiveness of running a completely square setup and being able to rotate tires front to back, the wheel would be...

18x9" Hubcentric, +15 offest (no spacers!), wide bolt whole bore for quick changes in enduro's, and cost would be on par with what we are paying for Enkei's.

So who would be interested?

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NASA NorCal ST/SU Group Leader
Valkyrie Autosport, Ltd.
http://www.valkyrieas.com


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PostPosted: Tue Dec 03, 2013 3:45 pm 
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Sounds interesting. Details?


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PostPosted: Tue Dec 03, 2013 7:09 pm 
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GeorgeZ wrote:
Sounds interesting. Details?


What additional info are you looking for?

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-Brian Lock
NASA NorCal ST/SU Group Leader
Valkyrie Autosport, Ltd.
http://www.valkyrieas.com


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PostPosted: Wed Dec 04, 2013 12:22 pm 
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Location: Cragsmoor, NY
How about 18x9.5 square?

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PostPosted: Wed Dec 04, 2013 12:30 pm 
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philstireservice wrote:
How about 18x9.5 square?

because they'd be illegal on the front

Quote:
16.1 Wheels
a) Any eighteen (18.00) inch diameter rim, with a maximum width of nine (9.00) inches front, and a
maximum width of ten (10.00) inches rear may be used.
b) No wheel permitted for competition use can weigh less than eighteen point five (18.50) pounds
with the exception of the Enkei RPF1 being specifically permitted for competition use.
c) Wheels must be one piece. (i.e. No multi piece bolted, riveted, or welded wheels.)
d) Aftermarket wheel studs, lug nuts, and wheel spacers are permitted. Refer to Appendix A for
recommended Nissan Part(s).
NASA_SZrules_2013v1.docx Page 8 of 11
16.2 Tires
a) The 275/35R18 BFGoodrich g-Force™ R1™ tire is the specified tire for the series. Optionally, the
275/35R18 BFGoodrich g-Force T/A™ KDW may be used for wet weather competition.

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2012 C6Z06
2010 RX8 R3


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PostPosted: Wed Dec 04, 2013 12:54 pm 
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Location: Cragsmoor, NY
kbrew8991 wrote:
philstireservice wrote:
How about 18x9.5 square?

because they'd be illegal on the front

Quote:
16.1 Wheels
a) Any eighteen (18.00) inch diameter rim, with a maximum width of nine (9.00) inches front, and a
maximum width of ten (10.00) inches rear may be used.
b) No wheel permitted for competition use can weigh less than eighteen point five (18.50) pounds
with the exception of the Enkei RPF1 being specifically permitted for competition use.
c) Wheels must be one piece. (i.e. No multi piece bolted, riveted, or welded wheels.)
d) Aftermarket wheel studs, lug nuts, and wheel spacers are permitted. Refer to Appendix A for
recommended Nissan Part(s).
NASA_SZrules_2013v1.docx Page 8 of 11
16.2 Tires
a) The 275/35R18 BFGoodrich g-Force™ R1™ tire is the specified tire for the series. Optionally, the
275/35R18 BFGoodrich g-Force T/A™ KDW may be used for wet weather competition.


not if they changed the rules

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http://www.philstireservice.com
Toyo Hoosier BFG Michelin
Apex Enkei Wedsport
Team Dynamic JRW


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PostPosted: Wed Dec 04, 2013 12:58 pm 
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Forum Hot Lapper
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Joined: Wed Mar 28, 2012 3:16 am
Posts: 67
Agreed.... and Enkei makes a nice 18 x 9.5 with an offset that requires no spacers :D


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PostPosted: Wed Dec 04, 2013 1:19 pm 
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Forum Racer
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Location: Scotts Valley, CA
FastNotFurious wrote:
Agreed.... and Enkei makes a nice 18 x 9.5 with an offset that requires no spacers :D


Are they hubcentric? What is the model?

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-Brian Lock
NASA NorCal ST/SU Group Leader
Valkyrie Autosport, Ltd.
http://www.valkyrieas.com


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PostPosted: Wed Dec 04, 2013 2:03 pm 
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Joined: Wed Jan 27, 2010 3:04 pm
Posts: 105
B Esquire wrote:
FastNotFurious wrote:
Agreed.... and Enkei makes a nice 18 x 9.5 with an offset that requires no spacers :D


Are they hubcentric? What is the model?


He is referring to the 18.9.5 +15 RPF1, and of course, they are not hubcentric. There are metallic hubcentric rings that can be purchased though.


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PostPosted: Wed Dec 04, 2013 2:23 pm 
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Forum Hot Lapper
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Posts: 67
And you can get 'em in black too ;)

If you like that sort of thing.


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