Hey everyone,
I have been researching on the forum for wheels for a while now, but I am still confused on wheel widths because the information is scattered in all places, and not everyone is running the same specs etc. I am in the market for a 19" staggered setup, which seems to be popular in the 8.5F/9.5R combo or the 9.5F/10.5R combo. Seems like everyone is running a various range of offsets however, which is confusing to say the least. If it is possible, can someone recommend the correct offset for these combos so I won't rub on a coupe with 350z htechs? Also, what tire sizes are recommended for these wheel sizes, since everyone runs a different tire size. I was thinking 245 in the front with 275s in the rear, but I'm not sure on sidewall. THanks

 

you will need to provide wheel make and model that you're interested before anyone can give you recommendations.

i'm running 9.5 / 10.5

 

my wheels are 8.5 and 10

 

sedan or coupe?

 

what ever you do, if you go staggard you want the inch difference from front and rear to be an inch.

if you have a sedan the ideal setup is front 8.5 rear 9.5
and if you have a coupe the ideal setip is fron 9.5 rear 10.5

 

9.5 10.5

 

Why is this the recommended widths, is it personal preference, seems like alot of people run 9"/10", 8.5"/10.5", or various combinations of these setups, which is why I am confused in the first place. I would like an explanation for using each combo, and the pros and cons for each. I think this would make a good sticky for everyone. Like Recommended tire sizes and corresponding widths for front and rear, and rubbing issues with each setup. If someone could do this, I would be willing to help organize the data into a table so that it could be quickly referenced. Maybe like having everyone with list their setups in a common format, so that everything can be tabulated.

 

I wanted 8.5/9.5 but Chris only had 8.5/10.5 so, i went with that..... no regrets!

 

[QUOTE=redlude97]Why is this the recommended widths, is it personal preference, seems like alot of people run 9"/10", 8.5"/10.5", or various combinations of these setups....QUOTE]

I think he was suggesting to keep the car balanced don't go too aggressive

 

i was suggested to go 9/11 by a tuning shop today.

 

it also depends whether you're running FI or not....... and how staggard you want it to look.... the other question you should ask are the offset? and it depends what kind of looks are you looking for? big brake kits are going to make a big diference as well.....you need to tell us what rims you want and what kind of look you are trying to achieve....

 

Consider that a front tire with 975 pounds on it with a 35 psi inflation will have a 975/35=27.857 square inch contact patch.

The same rear tire with 775 pounds on it with a 35 psi inflation will have a 775/35= 22.1428 square inch contact patch.

ASSUMING THE SAME TIRE TREAD WITH THE SAME TREAD TO VOID RATIO.

The only way to make the rear contact patch AREA larger is to lower the inflation pressure. OR if you want to equalize the PATCH AREA increase the front PSI by 25% to 44 psi and hold the rear to 35 psi

Don't confuse a larger tire with a larger contact patch AREA. A wider tire will make the contact patch wider but it then gets shorter lengthwise.

The AREA depends totally on weight and PSI.

Staggered setups depend on the rear patch being wider therefore more rubber in the sideways sliding position called -- lateral stickson.

A tires crown radius is important: Read the following
http://www.toyojapan.com/tires/pdf/TTT_08.pdf
http://www.toyojapan.com/tires/tire_talk.html

Lateral force vs slip angle:
http://www.insideracingtechnology.com/tirebkexerpt2.htm