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Think I decided on an alignment..

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Old Apr 6, 2012 | 04:39 AM
  #11  
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Originally Posted by IntegraR0064
Yes there is a noticeable difference between 2.5 and 2.8

I think your plan sounds like a great starting point.
Thanks
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Old Apr 6, 2012 | 09:24 AM
  #12  
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VIta and beard,.....are you guys saying you are shaking your head like snoop because I am wrong??? if so I suggest searching " toe in and high speed stability" and see how many people are actually running 0 rear toe because of the affects toe in has. It will help with the rotation but not enough to compromise straight line feel for imo.
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Old Apr 6, 2012 | 09:44 AM
  #13  
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I also have rpf1s 9+45 with 255 NT05's x4 and 2.4F/2.8R camber but with 0 toe. I am getting ALOT of push mid corner and corner exit. My setup should oversteet like crazy but I cant get the car to rotate at all. I think Vita is right (I also hate my NT05's), next alightment I get Im going to be increasing the fron camber to 2.8.
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Old Apr 6, 2012 | 09:51 AM
  #14  
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Originally Posted by sillyboybmxer
VIta and beard,.....are you guys saying you are shaking your head like snoop because I am wrong??? if so I suggest searching " toe in and high speed stability" and see how many people are actually running 0 rear toe because of the affects toe in has. It will help with the rotation but not enough to compromise straight line feel for imo.
We run toe-in for stability powering out of a corner, not for straight line stability.

Remember, you're posting in R&C, not S2k talk.
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Old Apr 6, 2012 | 09:59 AM
  #15  
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Honestly, the alignment, if in the ballpark of what most people run and I'd say this one certainly is, will not have a HUGE effect on handling. About the only thing that will have a dramatic effect is rear toe. From 0 to 1/2" is like night and day with transitional stability.

Basically, use this alignment and see what the car does. I will tell you that running toe-in in the rear seems to be counter productive and by that, I mean it takes away over all grip by making the tires work against each other in the name of stability. This same stability can be found in tuning the spring and sway bar rates.
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Old Apr 6, 2012 | 03:21 PM
  #16  
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Originally Posted by psychoazn
Originally Posted by sillyboybmxer' timestamp='1333733051' post='21582828
VIta and beard,.....are you guys saying you are shaking your head like snoop because I am wrong??? if so I suggest searching " toe in and high speed stability" and see how many people are actually running 0 rear toe because of the affects toe in has. It will help with the rotation but not enough to compromise straight line feel for imo.
We run toe-in for stability powering out of a corner, not for straight line stability.

Remember, you're posting in R&C, not S2k talk.
hence, why i said "for the street"
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Old Apr 7, 2012 | 03:33 AM
  #17  
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I'm w/ sillyboy and glagola on rear toe.

I run minimal rear toe for the track as well as the street. More like 1/16" - 3/32" (.14 - .20 deg) total. Wouldn't be averse to trying less.
IMO, 1/4" (0.57 degrees) total is excessive.

Excessive rear toe has never been anything but crap for me on the S and the 240Z. Worse turn-in, ubelievable tire wear, and *more* twitchy in over any bumps/undulation or in traction-challenged conditions.

As suggested above, having the rears work against each other in the name of "stability" is a poor compromise at best. In my experience, *particularly* on the AP1, too much rear toe feels WAY *less* stable than running minimal toe.

I don't understand the comment about it being for "stability exiting corners", either. Corner exit is inherently stable as the rears are loaded up. My 500+hp FD is totally stable under corner exit with 0.1deg total (had intended 0.1 per side), though throttle modulation is of course required for lower-speed corners! I'd rather not waste *any* of the rear tires' grip having them fight each other. Maximum cornering grip and thrust, no wasted scrubbing, please.

To me, running a lot of rear toe is a band-aid at best, and in my experience doesn't really make the car feel more stable or predictable, quite the opposite!

Better to tune handling balance with swaybar and spring rates and camber.

Too much (IMO, anything over ~0.35 deg total) rear toe is teh suxorz, on the street and at the track. In my (admittedly limited) experience...
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Old Apr 7, 2012 | 11:09 AM
  #18  
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Very very helpful infor guys. Maybe I will just start with 1/16 toe in to save tires and also see how the car reacts
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Old Apr 7, 2012 | 07:09 PM
  #19  
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i also run 1/16 total toe rear
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Old Apr 8, 2012 | 09:17 AM
  #20  
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how many inches is the stock toe? I guess 1/16 th would be a great place to start since this will be my first time on this setup, and I for sure don't want it to be twitchy in the rear!
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