Infiniti G35 G37 Forum banner

1 - 18 of 18 Posts

·
Registered
Joined
·
14 Posts
Discussion Starter #1
Good day everyone. I'm getting my G37X in a few days and this is my first AWD vehicle. It's an automatic as well. I'm wondering if I can install the Infiniti sports wheels without harming the drive train. I went ahead and bought a set of wheels because they were too good of a deal to pass. The current tires on them are 225/45/19 and 245/40/19 the tread is awful and they both need new tires. I've read and read and read countless back and forth about as long as the difference is under 5% you'll be okay, but some say that changes as the tread life wears down.
 

·
Super Duper Moderator
Joined
·
53,487 Posts
With an AWD you have to use tires with the same outside diameter. If your wheels are the same width, that makes it easy. If the wheels widths are staggered, then you need to take more care to match sidewall heights and tire widths to have the same outside diameter of the tires.

I see the tires on those wheels are staggered but the wheels can be the same width. Do you know the wheel widths?
 

·
Registered
Joined
·
14 Posts
Discussion Starter #7 (Edited)
The tire sizes that are on them now are listed above. I don't know the year they came off of. But I did get the wheel sizes this weekend. They are 19X9J and 19X81X2J
 

·
Super Duper Moderator
Joined
·
53,487 Posts
You can use staggered wheels bit you have to make sure the outside diameter of the tires are the same front and rear.
 

·
Premium Member
Joined
·
15,445 Posts
So the sizes that I have if I get the correct tires can it be done? I already bought the wheels as they were a good deal.
Look up the tire spec on tires you have or want to consider to see the outside dia.
* TireRack.com has brands, sizes, specs, prices and reviews .... everything.

For ex. I may have tires that show 26.3" or something. If you have 4 tires now not of the same height, you might want to pick 1 pair and match up with another pair you'd have to purchase to have 4 of the same diameter. Next time around you could do the same with the other pair so you'd still be able to use up the tires you have if they are in decent shape.
 

·
Super Duper Moderator
Joined
·
53,487 Posts
I recall helping someone else with this same question some time ago. We found the correct front and rear tires that would be staggered but have the same outside diameter.
 

·
Registered
Joined
·
14 Posts
Discussion Starter #12
I recall helping someone else with this same question some time ago. We found the correct front and rear tires that would be staggered but have the same outside diameter.
I'll try and figure this out with tire rack what sizes I need. The good news is they all need new tires so fresh rubber all the way around. :grin2:
 

·
Registered
Joined
·
14 Posts
Discussion Starter #13
They told me to use 225/45R19 front and the 245/40R19 for a .3" difference that is as close as I can get within the fender tolerance.
 

·
Premium Member
Joined
·
15,445 Posts
Just go to that site then search tires by brand or size. When you get the tire page look down the page a bit to tire specs and it will list the entire line of tires in all sizes available showing everything you need to know. I have these on my rear and running non staggered or "square" so I did the search as well... that's the 245 / 45 / 18 all the way around on mine. The page I copied below shows how the info is displayed. The 26.8 is the o.d or how tall the tires are.

DescriptionSizesSpecsWarranty
245/45-18 tires are marked with a red dot (   ).
Select New Size/Vehicle
Currently Selected Tire Size(s) (View Specs for All Sizes)
SIZE UTQG MAX.
LOAD MAX. INFLATION PRESSURE TREAD DEPTH TIRE WEIGHT RIM WIDTH RANGE MEAS. RIM WIDTH SECT. WIDTH TREAD WIDTH OVERALL DIAM. REVS. PER MILE COUNTRY OF
ORIGIN*
245/45R18
100V XL

LRR:
EcoImpact 700 A A 1,764 lbs. 50 psi 10/32" 26 lbs. 7.5-9" 8" 9.8" 8.3" 26.8" MX


link - http://www.tirerack.com/tires/tires.jsp?tireMake=Pirelli&tireModel=Cinturato+P7+All+Season+Plus&sidewall=Blackwall&partnum=445VR8CP7ASPXL&tab=Sizes
 

·
Premium Member
Joined
·
15,445 Posts
They told me to use 225/45R19 front and the 245/40R19 for a .3" difference that is as close as I can get within the fender tolerance.
That should be close enough to be safe.... about 1.1% diff.
It may depend on brands. Here is what I just found on TireRack for the Bridgestone Potenza REO50A;

225 / 45 / 19 is 26.9" and revs per mile is 774

245 / 40 / 19 is the exact same !! :grin2:
 

·
Registered
Joined
·
14 Posts
Discussion Starter #16
That should be close enough to be safe.... about 1.1% diff.
It may depend on brands. Here is what I just found on TireRack for the Bridgestone Potenza REO50A;

225 / 45 / 19 is 26.9" and revs per mile is 774

245 / 40 / 19 is the exact same !! :grin2:
Thank you, I'm really looking at the PILOT SPORT A/S 3+ the potenza's are nice as well. What are your thoughts?
 

·
Premium Member
Joined
·
15,445 Posts

·
Registered
Joined
·
14 Posts
Discussion Starter #18
SO I went ahead and had the wheels refurbished by New Age Powder Coating in NJ who did a fantastic job. I than installed V12's with 225/45R19 front and the 245/40R19. I've had no issues having them installed over the past month (except weather). Wheels were fully coated with 2 coats of Gyeon Rim before isntall.









 
1 - 18 of 18 Posts
Top