Any Sedans Running 275 Rear tires?

[Tampa G35 Sedan 6MT]

Post up some pictures or what you did to run that size?

I would like to hear your story!

[poms302]

It can't be that hard to do. I put 275's on my coupes rear(stock rims).

[Tampa G35 Sedan 6MT]

are you running 18's or 19's... The coups qt panel is wider than the sedans... That is why the 275 is a problem on a sedan!

DJ

[RED_DET]

275's all day and night. Tried out a 7mm spacer tonight and they still fit without any issues. With the spacer the wheel offset is equivalent to 38mm on a 18x9.5" wheel. The key is negative camber. Running -1.8 degrees in the rear. Once I get the rear brembo's on I will post up some more pics.

Pic of wheels with no spacer and about -1.0 degree of camber. Wheel offset is 45mm.

[poms302]

I'm just running the 18"ers. It looks like Red det has got you covered though.

[Tampa G35 Sedan 6MT]

275's all day and night. Tried out a 7mm spacer tonight and they still fit without any issues. With the spacer the wheel offset is equivalent to 38mm on a 18x9.5" wheel. The key is negative camber. Running -1.8 degrees in the rear. Once I get the rear brembo's on I will post up some more pics.

Pic of wheels with no spacer and about -1.0 degree of camber. Wheel offset is 45mm.

SO you think if I went back to 18's I would solve the problem easier?

I could even run the 18's in the front and the narrower 19 that is in the front now as the rear rims...

DJ

[Poyzinous]

why do you need such wide tires. Even with an extra 100hp, I would use a 265/40R18 as thats the same diameter as stock tires. Plus I dont want to add 40lbs of unsprung weight. If and when I get rims for my car, I plan to get 18's and run 235/45R18 all around. Diameter needs to be between 26.3 and 26.6. for a 275 width you'd need a 35 profile.

[Tampa G35 Sedan 6MT]

I like the look of the wider tires.

I am running 245 40 19's now and I want a little bit of a wider look to the rear!

Tire tires I want to buy come in 245 35, 255 35, 265 30, 275 30

245 35 front and then i can put a 255 35 in the rear but i wanted to go with a 265 or 275.

DJ

[pfarmer]

why do you need such wide tires. Even with an extra 100hp, I would use a 265/40R18 as thats the same diameter as stock tires. Plus I dont want to add 40lbs of unsprung weight. If and when I get rims for my car, I plan to get 18's and run 235/45R18 all around. Diameter needs to be between 26.3 and 26.6. for a 275 width you'd need a 35 profile.

While they may look cool the extra weight may translate into reduced stopping power as well.

Perry

[poms302]

why do you need such wide tires. Even with an extra 100hp, I would use a 265/40R18 as thats the same diameter as stock tires. Plus I dont want to add 40lbs of unsprung weight. If and when I get rims for my car, I plan to get 18's and run 235/45R18 all around. Diameter needs to be between 26.3 and 26.6. for a 275 width you'd need a 35 profile.

I didn't need a 35 profile. Do you really think going from a 245 to a 275 makes a tire weigh 10-20# more? I don't but I have never weighed them so I could be wrong.

[IMG][/IMG]

[Tampa G35 Sedan 6MT]

If I go from a 245 40 19 to a 275 30 19... That is actually a shorter wider tire so it is almost the same thing as a taller skinner tire.

Plus the shorter tire changes the gear ratio to be a little lower so you get better performance! If it does weigh more... you will never know!

DJ

[poms302]

Do it. It will look sexy and aggressive from the back...like a cougar(milf)

[IMG][/IMG]

[Tampa G35 Sedan 6MT]

I am buying a 350z revised 06 springs and shocks and i am going to install that first... then I will see where i can go with the tires. But I need to buy the tires before the 25th of may because tire rack is offering a 50 dollar visa card with purchase of 4 general exclaims

DJ

[Tampa G35 Sedan 6MT]

Do you think I will be safe after I roll the fenders to go with a 265 30 19?

That is only .39 of an inch per side of the tire...

And the lip of the fender is .7 of an inch... that leaves me .3 to spare.

any feed back would be great!

DJ

[4drmadness]

im running 275. I had my fenders rolled, and im running negative camber

[Tampa G35 Sedan 6MT]

How Negative... and what size rims... and what is the offset!

DJ

[4drmadness]

i think camber is at -2.4, 19's, offset is in the 20's somewhere

[Tampa G35 Sedan 6MT]

Thanks... I think i am going to stick with the 265's so that i don't have to have the tires ware out un evenly... I drive to much for that!

DJ

[adren77]

Your wheel width plays a larger role in how wide your tires look. Putting a 275 tire on a 8.5" rim is lame. Get some 9 or 9.5

For example A 255 on 9" wide rim looks a lot better than a 275 on a 8.5".... I tested this

[Tampa G35 Sedan 6MT]

I have to disagree with you on that...

I ran 245's on a 7 inch rim and it looked sweet.

I like the tire to be wider than the rims... Plus if my mom drives my car and hits a curb she wont mess up my rim the car will just go over it!

DJ

[poms302]

Adren77- Its your opinion, not fact.

[pfarmer]

I have to disagree with you on that...

I ran 245's on a 7 inch rim and it looked sweet.

I like the tire to be wider than the rims... Plus if my mom drives my car and hits a curb she wont mess up my rim the car will just go over it!

DJ

What air pressure do you run?

Perry

[Tampa G35 Sedan 6MT]

When i had the 17's on my lexus i would run 37-43 psi...

DJ

[Tampa G35 Sedan 6MT]

I run 33 on the G now

DJ

[pfarmer]

When i had the 17's on my lexus i would run 37-43 psi...

DJ

To me it looks like you should have 7.5" - 8.5" rims for that size of tire. I was curious if you were running lower air pressure to stop wear in the center.

Perry

[Tampa G35 Sedan 6MT]

to run 275 or 265 on my sedan i will have 8.5 on the rear..

[SVTCOBRA]

why do you need such wide tires. Even with an extra 100hp, I would use a 265/40R18 as thats the same diameter as stock tires. Plus I dont want to add 40lbs of unsprung weight. If and when I get rims for my car, I plan to get 18's and run 235/45R18 all around. Diameter needs to be between 26.3 and 26.6. for a 275 width you'd need a 35 profile.

My SVT Cobra only had 305 HP and a 3.27 gear. WIth 245's it would get sideways in 2nd gear.

Went to 275's and problem solved!!!

I would think 100 more HP in a G and you would want at least some sticky 275's. I know I would....my .02

Only regret was putting 275's on the front. Should have kept 245's there.

[pfarmer]

to run 275 or 265 on my sedan i will have 8.5 on the rear..

My information states that the recommended size for the 245 and 255 is 8.5 whereas for the 265 and 275 it is 10.

I would think this of course applies to the generic tire and could vary based on tire construction and tire clearance to various parts of the car both fenders and suspension components.

I asked the question about air pressure because if you run an undersize rim it is not uncommon to run lower air pressures so as not to wear out the center portion of the tire. Running normal air pressures will tend to balloon out the tire in the center on an undersize rim.

Again these charts are based on a generic tire and I image that it certainly would be possible for a tire to be designed for narrow rims.

As far as appearance tires are most visible with the car stopped. I personally make this a secondary factor as I primarily purchase a tire for performance and proper wheel width based on the design of the tire is one of the main factors that ensures it. I want to make sure I am safe with the car in motion. This is one reason why many who show their cars have a set for show and another set for go.

Perry

[pfarmer]

Adren77- Its your opinion, not fact.

Having the correct width rim based on tire design is not lame since it may well involve a safety factor as well. If it was purely a statement about looks then it becomes only a personally opinion that maybe others share.

Too narrow or too wide of rims for a particular tire design is lame as far as safety goes.

From Infiniti for the 09 G37 Sedan:

---------------------------------

Double 5-spoke, 17 x 7.5-inch aluminum-alloy with 225/55R17 V-rated all-season performance tires

Split 5-spoke 18 x 7.5-inch aluminum-alloy wheels with 225/50R18 (front) and 18 x 8.5-inch 245/45R18 (rear) W-rated summer performance tires

Split 5-spoke 18 x 7.5-inch aluminum-alloy wheels with 225/50R18 V-rated all-season performance tires (front/rear)

-------------------------------------------

In fact his stated size may be a little narrow compared to the recommended 10 inch size, again based on the generic 275 18" tire.

Perry

[Tampa G35 Sedan 6MT]

but also remember that from a 245 40 19 to a 275 30 19 you are only adding .59 of an inch to either side of the rim...

245 wide is 9.65 inches

275 wide is 10.83 inches