lets see your autoX/Track wheel and tire setups
09-22-2011, 08:15 AM
#41
so im thinking about trying to run a 305 all the way around the car...on some RPF1's...should i go with a 10.5 all around??? my fenders are already rolled and flaired out some from doing to stupid hella flush stuff...but im switching it up and doing a whole new setup...
305s probably fit in the front, but you'd need to run a good amount of negative camber, not be too low (I'd say no more than an inch?), and/or need wheels with relatively high offset (+20s or +30s, but too high of an offset means your wheel/tire may hit the suspension components).
09-22-2011, 02:21 PM
#44
Scott, so are you saying it would be pretty difficult to run an 18X10.5 RPF1 with a 315 on +15 offset? even with spacers? is that just because of the fender hitting the tire or suspension parts? if its the fender then i may be interested in trying it out!
09-22-2011, 03:03 PM
#45
17X9 MB weapons, RS3 255/40/17, Eibach sportlines, Kinetix a-arms.
Cars well balanced and a lot of fun.
https://my350z.com/forum/attachment....1&d=1316732143
Difference between 245/40/18 and 255/40/17 RS3's Hancook really stretched the sizing on the 255
https://my350z.com/forum/attachment....1&d=1316732143
https://my350z.com/forum/attachment....1&d=1316732143
PCA autocross 2nd best time overall behind C5 vette on R-comps
http://youtu.be/7Ydl6KGbxIc
Cars well balanced and a lot of fun.
https://my350z.com/forum/attachment....1&d=1316732143
Difference between 245/40/18 and 255/40/17 RS3's Hancook really stretched the sizing on the 255
https://my350z.com/forum/attachment....1&d=1316732143
https://my350z.com/forum/attachment....1&d=1316732143
PCA autocross 2nd best time overall behind C5 vette on R-comps
http://youtu.be/7Ydl6KGbxIc
09-22-2011, 04:19 PM
#46
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09-22-2011, 04:20 PM
#47
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255/40/17 RS3s FTW! $125 a tire, cant beat it!
thats why I want 17x9.5 +18 RPF1s
thats why I want 17x9.5 +18 RPF1s
17X9 MB weapons, RS3 255/40/17, Eibach sportlines, Kinetix a-arms.
Cars well balanced and a lot of fun.
https://my350z.com/forum/attachment....1&d=1316732143
Difference between 245/40/18 and 255/40/17 RS3's Hancook really stretched the sizing on the 255
https://my350z.com/forum/attachment....1&d=1316732143
https://my350z.com/forum/attachment....1&d=1316732143
PCA autocross 2nd best time overall behind C5 vette on R-comps
http://youtu.be/7Ydl6KGbxIc
Cars well balanced and a lot of fun.
https://my350z.com/forum/attachment....1&d=1316732143
Difference between 245/40/18 and 255/40/17 RS3's Hancook really stretched the sizing on the 255
https://my350z.com/forum/attachment....1&d=1316732143
https://my350z.com/forum/attachment....1&d=1316732143
PCA autocross 2nd best time overall behind C5 vette on R-comps
http://youtu.be/7Ydl6KGbxIc
09-22-2011, 04:30 PM
#48
Yep its a great deal, you gearing shortens a bit due to a shorter overall tire but not bad. I am about 4 mph less at 60(indicated) than the stock size.
Looking at the specs on tire rack and the 255/17 width is only one/tenth of an inch less than the 285/18 RS3. Pretty good deal.
Last edited by steidz; 09-22-2011 at 04:53 PM.
09-22-2011, 05:36 PM
#49
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Going strictly by the bolded, wouldn't it make more sense to have less camber on a higher HP car than the lower HP then, not the other way around, so that you have more contact patch on corner exit? I'm still not getting why you want less neg camber with lower HP car or why the HP even matters with respect to camber. I'm saying with all other factors, like weight, suspension, etc being equal of course.
09-22-2011, 05:49 PM
#50
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17x8.5 rpfs running 255/40 RS3s (love this tire!)
18x9.5 rpfs running a048s but might try R6s next year. Will only use for competition if they can shave enough time off.
18x9.5 rpfs running a048s but might try R6s next year. Will only use for competition if they can shave enough time off.
09-22-2011, 06:29 PM
#51
Going strictly by the bolded, wouldn't it make more sense to have less camber on a higher HP car than the lower HP then, not the other way around, so that you have more contact patch on corner exit? I'm still not getting why you want less neg camber with lower HP car or why the HP even matters with respect to camber. I'm saying with all other factors, like weight, suspension, etc being equal of course.
09-22-2011, 06:46 PM
#52
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Ditched my 19's and installed these today...
SSR Type F -
18x9.5 +12 w/ 10mm Spacer - 255/35/18
18x10.5 +15 - 295/35/18
Toyo T1R's for now, hopefully get some R6's for Christmas...
SSR Type F -
18x9.5 +12 w/ 10mm Spacer - 255/35/18
18x10.5 +15 - 295/35/18
Toyo T1R's for now, hopefully get some R6's for Christmas...
Last edited by Ruthless18x; 09-22-2011 at 07:00 PM.
09-22-2011, 06:56 PM
#53
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Going strictly by the bolded, wouldn't it make more sense to have less camber on a higher HP car than the lower HP then, not the other way around, so that you have more contact patch on corner exit? I'm still not getting why you want less neg camber with lower HP car or why the HP even matters with respect to camber. I'm saying with all other factors, like weight, suspension, etc being equal of course.
The sooner you can go to WOT the better, expecially for a high HP car. An NA Z is a cross between a point and shoot car and a momentum car. An example, S2K is more of a momentum car than a Z, also uses more rear camber.
09-24-2011, 02:44 PM
#55
17x10" +35 5zigen FN01R-c with 275/40/17 Kumho XS all around
15mm front / 20mm rear spacers mostly because they make my DD wheels fit better. I plan to go to 295/35 Kumho XS all around next season and will probably need slightly smaller spacers.
15mm front / 20mm rear spacers mostly because they make my DD wheels fit better. I plan to go to 295/35 Kumho XS all around next season and will probably need slightly smaller spacers.
09-24-2011, 02:55 PM
#57
None of the other "good" street tires are made that wide in a 17 except for the Nitto NT05 which I haven't heard great things about. I'll eventually go to Hoosiers, but since I just seriously got into autox this year I want to stay on street tires for a couple seasons.
