I am looking for some ppl to advise me what are my options for 19x10.5 and 19x9.5 what tire sizes can I get to keep the VDC system in order

 

just an example

285/35/19
245/35/19

 

https://my350z.com/forum/showthread....1&postcount=45

 

if I wanteed to use 305 or 295 in rear wut profile should I use in rear and wut size tire should I vet upfornt to keep vdc in tact


thanls

 

Alright I used the calculator and came up with this.

If I use this set-up

295/30/19 the difference is 1.0"
255/30/19 the difference 0.0"

Should that be fine with my VDC and with stock suspension ( Am I gonna have to roll fenders)?

 

I'm using 255/35 and 285/35 and have no problems with VDC or rubbing. With 295's if you're lowered any then you might need to roll the rears.

I know that 255/35 and 295/30 will work on some cars with no VDC problems. Because the OD is the same front and back, there is always the potential for a VDC issue. With 255/295 the stagger is larger than normal (>1") so it might also cause VDC problems.

 

does it matter if car came wit 17 or 18s becuz mine came wih 18 idn wut urs came wit but maybe the VDC settings are set different if car comes stock with 17 or 18 ?

 

daves 7 any input on that

 

No, 18s and 17s are tire sized correctly to have the same OD. Just keep it within 5% of each other and you should be ok. Width is kinda irrelevant to VDC, the height with said width is what will affect it. I'm running 275/35 275/40 on 18s and no issues. But it's damn near spot on with the OD.

 

I've never seen anything to indicate that VDC behaved differently on the 17" wheels vs 18". The OD's are pretty close in all cases. That's the trick is to stay close to the OEM OD so VDC/TCS, speedometer and odometer all stay happy and accurate.

 

DaveZ I compared the stock tire 245.45.18
wth the after market set up u got of 285.35.19 and the circumference diff is much more than 1inch and mph dff is gonna be like + 2mph so how does ur setup not throw off the VDC?

 

nvm i see it now i counted 40 not 45 my fault

 

Before you spend $$ on anything else, take a spelling class. Yours is whoreindus!!

 

It's all explained in the link I posted above.

The stock 18's are:
225/45/18 25.9"
245/45/18 26.7" (0.8" stagger)


The upsized 18" and 19" usual sizes are:
245/40/18 25.7"
275/40/18 26.6" (0.9" stagger)

245/35/19 25.8"
275/35/19 26.6" (0.8" stagger)

As you can see, the OD's are within 0.2" of the OEM.

My sizes are:
255/35/19 26.1"
285/35/19 26.9" (0.8" stagger)

Again, my fronts and rears are 0.2" larger. That causes only a minor error on speedometer/odometer readings.

 

K first of all what did I misspell, 2nd no1 wants ur smartass comments here, so if you dont have anythin useful to say just keep it shut

Thanks

 

People usually go for 245/35/19 and 275/35/19 on the particular setup you mentioned.
I'm also running 255/35/19 and 285/35/19 and no problems.

 

What about us without VDC (base models)? Somewhat related, I've had 225/50/17(front)and 225/55/17 (rear) on all 4 same size wheels for winter tires for 3 years no trouble. Understandibly, after reviewing the 100FAQ and doing some tire calculations. I've heard of a member having great results with 225/55/17 all around with no computer issues. I think from tire calculations that this is a bad change for the front and am more comfortable with 225/50/17 all around for phsical size but the stagger will be ZERO! His stagger is zero also with 225/55/17 all around and VDC is claimed to be happy.

What does this mean on a base model where I am just trying to keep the ABS happy? Same requirements? And what is the worst that can happen? ABS doesn't stop so straight or comes on before necessary, etc??

All the factory stagger shows larger OD in the rear. I would end up no stagger on the first day followed later in the season by a smaller rear than front but one of the reasons for wanting all 4 the same is to rotate, so after about 6,000 miles I'll rotate and have a slight stagger with bigger rear OD.
Any thoughts? It's tempting to try despite knowing it is "wrong."

Don't let me do something totally stupid, I'm almost willing to try this becuase I don't see a MAJOR concern. I don't doubt him but I need some 2nd opinions on something involving my safety.

 

what about 245 front with 265 rear on 18s?

 

No VDC? No problem. You can put any size tires on the car that you want.