topmover

I'm getting ready to go to a BBK on my 02z06, I have 2 sets of 18 rear z06 wheels. I want to run Nitto 555II 305/35/18 on all four corners. I have check the sizing and other than a little rubbing on the front at full lock the fit is good. Will this set up cause me any problem with my "nanny's"?

Thanks

AU N EGL

Check the back spacing on those rims. then check the back spacing required for the BBK you wish to buy.

topmover

I have check the spacing and I will need 1/8" spacers so I think I'm ok there however I run in "compitition mode" and I was wondering if the identical sized tires both front and back will cause the "nanny's to trigger"?
Thanks

rad_vet

My car has a Stoptech ST40 kit on the front with the square factory rear wheel set-up with 305 V700s. No rubbing.

BERETTA

18x10.5 C5ZO6 wheels all around on either 315/30/18's or 315/35/18's I have not had any issues with the nanny's -I don't run with the nanny's on anymore

kmagvette

I have been running a square setup on my 02 Z for 6 years...never had an issue.

RDnomorecobra

i've had no issue either with exact same tire sizes

gmccreary

You'll have to turn the nannies off to run a square set up. Since the stock configuration is a 17/18 stagger the computer looks for a difference in rotational speed between the front and back tires. With a square set up there is no difference and the computer will think there is a loss of traction.

travisnd

On my old Z06 I ran 17x11 GrandSport wheels with 315s all around. If left in comp mode, once in awhile it'd trigger "SERVICE ACTIVE HANDLING, SERVICE ABS, SERVICE TRACTION CONTROL", but I'd reset the code on the back straight at VIR. It only happened a few times.

On my current TTA car I run 275/35/18 or 255/35/18 all around on stock rear wheels and have no issues, but I do run with everything off.

z06801

I have been running Pirelli slick 305/680/18 on all fours, really tall but I get them in good shape from a porsche team 100.00 each and they feel pretty good, would rather have proper sizes but got to run what you can get sometimes. all nannies off, no trouble

sperkins

That's really not a good idea. The 305 Nitto is a really tall tire at 26.3".
Too tall IMO for the front of a C5 on an 18x10.5 wheel.

z06801

those pirelli 305/680/18 that i am running are 26.91" ( not optimum for sure I know)

ccj

02 Z06. Stoptech ST60's front, ST40's rear. (4) 18x10.5 OEM Z06 wheels with Nitto NT-01 315/30 18's. No problems with brake caliper clearance. Will not go to full lock without rubbing on the DRM brake duct extensions.

Joy of 6

I have 305/35/18 in the back and 275/35/18 in the front. The front tires are the same diameter as the 265/40/17's so no difference for the nannys to see

RDnomorecobra

maybe depends on the year. I have an 03 z06 and never had that issue. nannies stay on on the street for me, off on the track

topmover

Thanks to all of you for the input........I think I know where I stand now.

doveboat

Does anyone have experience running NT555RII's in a 305/35/18 Rear & 285/35/18 Front setup on stock rear C5 Z06 Wheels, with all nannies on ?

Looks to be a .5" stagger Front to Rear

Ed

topmover

I ran at VIR this past friday in my 02z for the first time with the exact setup your refering to...........sorry to say I only got about 20-30 total minutes on the track due to a oil psi issue however I had no issues with nannys on or off.

Jason

Even with the everything off I still see "Service Active Handling" sometimes.

AU N EGL

Jason, your wheel sensors or bearings may be wearing out then. Unplug the sensor clean out the connection and replug them in. That worked for me several times.