I have a set of volk sf challenges 9.5 +21 and 10.5 +23 245/35/19 and 275/35/19.
I constantly break traction with my 275/35/19 falkon 452 so I am in the market for some aggressive tire sizes. Wanted to get nitro invo 305/30/19 for my rear wheels and hope to put the power to the ground and not waste it spinning and burning rubber :-/

I just came across this thread :



Quote:
Originally Posted by aXxICExXa
-Sorry bro, 295 is way too big for my TCS to compensate.

-As long as you size your fronts to match your TCS will not notice.
How do you think others have run such tire sizes.


My question is. If I get the 305 setup, I have to compensate for the fronts? In other words slap on 275's? I'm afraid they will rub and give me problems. My original plan was to keep the 245's up front and just run the 305's in the rear.I didt know of any needed compensation for TCS.
What's your guys' input on this?
Thank you!

 

You will definitely need to run a larger tire up front. We have run a 265 front and 305 rear in the Bridgestone RE-11, which is a very grippy street tire. The most important part is you want to make sure the outside diameters are as close as possible. You may need a bit of fender work to make that sizing work, but you should be able to clear a 265 with fairly minimal work. The 305 in the rear will likely take a bit more of effort to make work, but we've done it here on several occasions.

 

AS long as the outer diameters are correct you will not have any issues with TCS thinking you are slipping.

However, running a skinny front and wide rear may cause you other handling issues, understeer.

I have a used set of 305's for sale in the classifieds. I ran them with a 255 front for a while.

 

And by auger diameter you are referring to the thickness of the tire? /30/ and /35/ ? I currently have my rear fenders rolled, fronts are untouched.

 

When I run the TCS off, would I still have the same problem? I'm also getting a set of drag radials on a separate set of rims. 275/60/15 would that create a problem being run simultaneously with my front 245/35/19? If so i have my stock 18's front setup as well at 225/45/18. Maybe they could b useful? Thanks for all your help I really appreciate it

 

Thread retitled to reflect content...

Read this thread:

https://my350z.com/forum/wheels-and-...read-here.html

 

You need to look up the actual tire you are thinking about and there will be a measurement for the outside diameter. This is not the /30/ or /35/ this will be the actual measurement. Try to stay within .5 inches. For instance with a Bridgestone RE-11 265/35/19 the outside diameter is 26.3 inches. The 305/30/19 is also 26.3 inches. Every tire brand and compound usually has slightly different measurements. This is why it is important to check and not assume.

 

Thank you so much! That's exactly the kid of info I needed. So from your experience, did you have any problems clearing 305 tires in the rear or 265 in the front? My front fenders are oem the rear fenders are rolled on my Z.
Thanks again

 

305's will fit with the proper offset wheel, 275's easily fit up front.

 

It's all explained here... https://my350z.com/forum/showthread....1&postcount=45

 

More specifically, you need to maintain the same stagger between the front and rear diameters. Stock is about 2.67% (assuming 225/45/18f:245/45/18r). As long as your new F/R combo is similar (the closer you keep it more the VDC/TCS will behave as stock).