Have a Question/s About Wheels/Tires/Offsets/Camber/Etc? Ask here::
Osiris doesn't work on 03 sedan?
either way, I really don't think that disqualifies it from being performance vehicle - gains from tuning NA are minimal. You want increased acceleration? Change final drive ratio. Best mod I ever did. I substantially decreased my tire diameter as well - together felt like adding 75 ft lbs torque. In fact, you can try decreasing rear tire diameter first - just to see if you like the effect before deciding to take time/expense of swapping FD. But you won't be able to do that well with 20" wheels...
either way, I really don't think that disqualifies it from being performance vehicle - gains from tuning NA are minimal. You want increased acceleration? Change final drive ratio. Best mod I ever did. I substantially decreased my tire diameter as well - together felt like adding 75 ft lbs torque. In fact, you can try decreasing rear tire diameter first - just to see if you like the effect before deciding to take time/expense of swapping FD. But you won't be able to do that well with 20" wheels...
Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods

^It sucks that Cobb decided to drop the Infiniti/Nissan connection because they were the only company that I know of that would work with the 03 ECUs.
Just an FYI, in case anyone's interested (I looked high and low for people running similar setups on G's, they were hard to find).
2007 6mt coupe
Running 18x10.5 +25 square. They clear without spacers.
275/35 square, but they are vey wide for 275s, literally at least 285.
Dropped maybe 1.5" in front, .5" rear. No extreme neg camber. No rubbing anywhere, even at full lock, but keep in mind these tire diameters are substantially smaller than OEM - tires are a good distance below fenders and my suspension is much stiffer than stock, so tires may never be entering fender wells.
18x10.5 +25 is exactly perfect up front for running wide as possible rubber. It barely clears steering knuckle - just enough that I'm not worried about rubbing.
2007 6mt coupe
Running 18x10.5 +25 square. They clear without spacers.
275/35 square, but they are vey wide for 275s, literally at least 285.
Dropped maybe 1.5" in front, .5" rear. No extreme neg camber. No rubbing anywhere, even at full lock, but keep in mind these tire diameters are substantially smaller than OEM - tires are a good distance below fenders and my suspension is much stiffer than stock, so tires may never be entering fender wells.
18x10.5 +25 is exactly perfect up front for running wide as possible rubber. It barely clears steering knuckle - just enough that I'm not worried about rubbing.
Thinking of buying wheels that would be 18x9.5 +22 Fronts & 18.10.5 +22 Rears... Could I pair these up with 265/40/18 Fronts & 285/40/18 Rears? Would I rub? Choosing 40 over 35 tire diameter because I want more meat on the tires... Thanks in advance.
Rear fenders rolled? Lowered? If so, How much? Spacers? This setup is fine depending on your setup.
Joined: Mar 2009
Posts: 18,299
Likes: 1,488
From: By the sea, Tx
G35 sedan w/ too much money in mods

Let me start by saying I love you like a brother and have mad respect for your passion for cars and your contributions to this forum over the years.
That being said, I'm not a fan of the new look. Love the wheel style, especially the concavity but damn, the car almost looks like a donk with the wheels being way too big for the car. Now this is obviously just my opinion and maybe it's the pictures and the angles they were taken at but the side shot gives the car an almost 4WD look because it sits up so high. However if you're happy with them then my opinion is just that and irrelevant to your ride. Looking forward to the day I get to change the mileage in the title of the highest mileage thread to 400K+ 4X4 or not lolol.
That being said, I'm not a fan of the new look. Love the wheel style, especially the concavity but damn, the car almost looks like a donk with the wheels being way too big for the car. Now this is obviously just my opinion and maybe it's the pictures and the angles they were taken at but the side shot gives the car an almost 4WD look because it sits up so high. However if you're happy with them then my opinion is just that and irrelevant to your ride. Looking forward to the day I get to change the mileage in the title of the highest mileage thread to 400K+ 4X4 or not lolol.
Hi Everyone,
Just bought a 2006 g35x I plan to use for autocross. I want to use Bridge Potenza RE71R 235-45-18 tires. I currently have the stock infiniti 17x 7 inch rims on. Just checking that if I switch to the Stock Infiniti 18x8 inch rims I shouldnt have any rubbing problems
Specs on the Infiniti stock 18inch rims
Diameter - 18inches
Width - 8 inches
ET - 47
Just bought a 2006 g35x I plan to use for autocross. I want to use Bridge Potenza RE71R 235-45-18 tires. I currently have the stock infiniti 17x 7 inch rims on. Just checking that if I switch to the Stock Infiniti 18x8 inch rims I shouldnt have any rubbing problems
Specs on the Infiniti stock 18inch rims
Diameter - 18inches
Width - 8 inches
ET - 47
235-45 square sounds like a very poor choice for autox, IMHO.
Do you plan on running tires on road frequently?
Do you plan on running tires on road frequently?
Hi Everyone,
Just bought a 2006 g35x I plan to use for autocross. I want to use Bridge Potenza RE71R 235-45-18 tires. I currently have the stock infiniti 17x 7 inch rims on. Just checking that if I switch to the Stock Infiniti 18x8 inch rims I shouldnt have any rubbing problems
Specs on the Infiniti stock 18inch rims
Diameter - 18inches
Width - 8 inches
ET - 47
Just bought a 2006 g35x I plan to use for autocross. I want to use Bridge Potenza RE71R 235-45-18 tires. I currently have the stock infiniti 17x 7 inch rims on. Just checking that if I switch to the Stock Infiniti 18x8 inch rims I shouldnt have any rubbing problems
Specs on the Infiniti stock 18inch rims
Diameter - 18inches
Width - 8 inches
ET - 47
I am just starting Autox so I am quite willing to take advice gratefully from anyone What tiresres would you recommend., and yes this car is also my daily driver so I dont mind using my autox tires as my everyday tires as I like to drive in a spirited manner but I do run dedicated winter tires October to April as I live in Canada.
Hugh
Hugh
First thing you need to do is research impact of changing tire rolling diameter from stock on all wheel drive. Lot of misinformation hereabouts regarding changing diameter on 2 wheel drive (which I'm familiar, but not AWD). That might greatly restrict your choice of tire sizes.
Not considering potential AWD issues, wider is always better (for autox). I run 285/35/18 squared. These barely fit on a coupe without fender work. Used to run 305 in rear before I opted for square. My rear tire is much shorter than stock, so my gears are much closer together and top out sooner. This is generally a great advantage in autox, particularly on an under-powered/overweight vehicle like ours.
Trying to figure out offsets for my next set of wheels....
If I decide to go with wider wheels but keep the same offset, will that add width to the inside and outside of the wheels evenly?
For example, if I have 8 inch wide rims and swap to 10 inches while keeping the same offset, will that add an inch evenly to both the inside and outside?
If I decide to go with wider wheels but keep the same offset, will that add width to the inside and outside of the wheels evenly?
For example, if I have 8 inch wide rims and swap to 10 inches while keeping the same offset, will that add an inch evenly to both the inside and outside?




. uprev, and EVERY other tuning company does NOT support the Gen1 G35 ecu which comes with the 2002-2003 Sedan. 2004 got the upgraded ecu



