Questions

[rs88]

Hi Guys.. got myself a set of 350z 18x8 track wheels to replace my 20"... Couple of questions after speaking to my tyre guy ..

1) He recommended running 245/45 18 front and rear... I read some earlier posts about not doing this as it might interfere with the car's VDC controls?

2) At the moment, I got the Ken Style Front Bumper on Stock suspension and as it is right now, I scrapped almost every time! Dropping to 18's .. even with the increased sidewall .. means dropping the car lower??

By the way PN-Mad, Front Sways are Hard and Rear Soft!

Thoughts from the experienced folk out there?

[Murry33]

1. those tyres will be fine, it won't affect your VDC.

2. It'll probably still scrape lol

[t5iv]

When you change your tyre size, you can't change the rolling diameter by more than 15mm. So you'll still have the same-ish ride height.

[rs88]

Thanks! So, running 245s all round is ok for VDC. Is that good however for handling/driving? Or you won't notice anything?

OEMS 225/50 17" front and 235/50 17" rear ...

Using http://www.alloywheels.com/Tyre_Calculator, it appears I need to go 245/40 18" for Front which gives me a -0.29 difference, which should be ok.

However for the Rears, using 245/40 gives a -1.77% and 245/45 gives a +1.82% difference.

Which combo is best?

[grae35]

I run 225/45/18 front and 245/45/18 rear on OEM 18x8 coupe rims. I now get at the limit understeer so going 245/45 front and rear should fix that up and perhaps the tail more likely to kick out first than the front. But with that amount of rubber on the road grip levels will be higher than stock so unless you are on the track you probably will never notice it.

[Triggs]

1. those tyres will be fine, it won't affect your VDC.

2. It'll probably still scrape lol

Wait, what? What tyres can't we run? Sorry im pretty new and am not aware of wheels effecting the VDC. Are there any writeups?

Edited February 21, 2013 by Triggs

[iamhe77]

245/45 will be perfect for your 18x8's.

[rs88]

Thanks guys