Posted this under wheels/tire forum but got replies. Anyone know what difference it would make if I changed the front tires to the same size as the rears?

 

Posted this under wheels/tire forum but got replies. Anyone know what difference it would make if I changed the front tires to the same size as the rears?

 

just a guess, but i believe the lack of stagger would cause some problems with the VDC system.

03 6MT coupe, red/willow, premium, aero, splash guards, alum pedals, clear corners, double 15% tint

 

redwillow's right. It will kill the stagger and cause problems with the VDC. You can put 245/40s on the front however. This will improve handling and help reduce understeer. I'm assuming you have 18" wheels. You didn't state.

Lou

 

Post deleted by anonymous

 

Post deleted by anonymous

 

Similar question now that its posted on here:

Would it be OK to go wider rear tires too? Such as 255, 265, 275 on the back? Trying to keep the same "thinness" though?

Black / Black 2004 GcoupeMT. Premium. Splash Guardz.

 

Yes, I have factory 18" wheels. I am planning to use the same size tires on the front and rear. My intention is to double the life of my tires by being able to rotate them front to rear, rear to front. Does anyone know if there's a difference between the front and rear wheels that would prevent me from interchaging them? Thank you.

 

Yes, I have factory 18" wheels. I am planning to use the same size tires on the front and rear. My intention is to double the life of my tires by being able to rotate them front to rear, rear to front. Does anyone know if there's a difference between the front and rear wheels that would prevent me from interchaging them? Thank you.

 

For the rear you can go up to 255/45/18 with the 245/40s on the front. A nice combo that will improve handling and not screw up the VDC.

Lou

 

Personally, I wouldn't do it... in principle that would give the car a tendency to oversteer, particularly in the wet. With the VDC off, the car already tends toward oversteer. Your setup would increase that even more. Not to mention, the aesthetics/ stance would look wrong (in my opinion, that is).

2004 G35C 6MT + Nav, Silverstone

 

The "G" understeers. What I suggest will help lessen that tendency.

Lou

 

At the limit or when traction breaks it oversteers. With the VDC off the big torque at the back wheels causes acute oversteer. Implicit in that is the need for max traction at the rear wheels, not the front.

I agree with you that larger front wheels will reduce "push" (understeer) by improving front end traction, but that's not what the car needs. If you give this car (or any RWD car) too much front end traction, it will oversteer when you approach the limit.

By the way, according to Kazutoshi Mizuno (the chief vehicle engineer for the FM platform at Nissan) -- in an interview in Automobile mag -- the wheels are purposely larger at the back to give the car neutral balance (that is, increase the traction at the rear to minimize oversteer).



<a href="http://news.bbc.co.uk/sport1/shared/spl/hi/motorsport/03/formula_one/car_behaviour/html/car_behaviour.stm"></a>

2004 G35C 6MT + Nav, Silverstone

 

http://news.bbc.co.uk/sport1/shared/..._behaviour.stm

In the bottom of the 3 scenarios (oversteer) there is too much grip on the front, relative to the back. That's what will happen if you put the bigger tires on the front. That's not what you want in the wet -- the back end will get squirrley on you when you power hard out of a turn, or when you accelerate while turning.

2004 G35C 6MT + Nav, Silverstone

 

I wanted to put wider tires on the front AND back. That was what I meant. If the traction is increased on both ends.. Wouldn't it have less of an effect?

Black / Black 2004 GcoupeMT. Premium. Splash Guardz.