Nitto NT 555 245 (F) & 275 (R) on stock 18's
01-02-2003, 04:23 PM
#41
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Re: BOTTOM LINE!!
Originally posted by SLVR Z
4. Nissan's ABS has specifications for tire size differences. I don't remember exactly what it is... but something like the tire height difference between front and rear can not be less than 1/2 and more than 3/4. Otherwise, the ABS and traction control will not work correctly. (I'm not sure about the exact numbers....)
4. Nissan's ABS has specifications for tire size differences. I don't remember exactly what it is... but something like the tire height difference between front and rear can not be less than 1/2 and more than 3/4. Otherwise, the ABS and traction control will not work correctly. (I'm not sure about the exact numbers....)
Good point... I hadn't thought of the ABS side of things when it comes to tire diameter differences. Are the numbers you listed above supposed to be in inches? For example, the rear tires can be no less than 1/2" bigger and no more than 3/4" bigger than the fronts? (You said you weren't sure on those numbers, so I'm just using them as examples, also.) It would be very good to have these numbers for future reference.
For what it's worth, here are some numbers I just calculated out:
stock 18" tires
front: 25.97" diameter
rear: 26.68" diameter
This makes the rears almost 3/4" larger than the fronts.
stock 17" tires
front: 25.86" diameter
rear: 26.25" diameter
This makes the rears just under 1/2" bigger than the fronts.
As an interesting comparison, here is a common aftermarket size we're seeing on the 350Z (275/40/18 rear and 245/40/18 front):
front: 25.72" diameter
rear: 26.66" diameter
This makes the rear diameter almost 1" bigger!
01-02-2003, 04:54 PM
#42
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Check out this email i got a while back........
Scott-
The only size available in 19" is the 19x8. However, AXIS will offer their new MAXIS look which is the same width, yet has different lip front and rear for the "effect" of a larger width in the rear.
You can safely run a 275 in the rear on an 8" rim.
If you are still interested, we can put a package together. The ideal tire sizes are 245/35/19 front and 275/30/19 rear, you can get away with as much as 295 in the back.
If you want an ideal staggered fitment, check out this wheel:
http://www.spyengineering.com/SPY/supermesh.html
PS- this is the guy who did up the axis yellow car.
Scott-
The only size available in 19" is the 19x8. However, AXIS will offer their new MAXIS look which is the same width, yet has different lip front and rear for the "effect" of a larger width in the rear.
You can safely run a 275 in the rear on an 8" rim.
If you are still interested, we can put a package together. The ideal tire sizes are 245/35/19 front and 275/30/19 rear, you can get away with as much as 295 in the back.
If you want an ideal staggered fitment, check out this wheel:
http://www.spyengineering.com/SPY/supermesh.html
PS- this is the guy who did up the axis yellow car.
01-02-2003, 05:09 PM
#43
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Ok ok, what about a 265 35 19 on the rear 8" rim???
Stock 235-50-17:
Diameter: 26.3in
Revs/min: 768
265-35-19:
Sidewall: 3.7 in
Diameter: 26.3in
Rev/min: 767
275-35-19
Sidewall: 3.8 in
Diameter 26.6in (this is too big ANYWAY!)
Revs/min: 759 (not right either)
Stock 235-50-17:
Diameter: 26.3in
Revs/min: 768
265-35-19:
Sidewall: 3.7 in
Diameter: 26.3in
Rev/min: 767
275-35-19
Sidewall: 3.8 in
Diameter 26.6in (this is too big ANYWAY!)
Revs/min: 759 (not right either)
01-02-2003, 05:14 PM
#44
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Good luck finding that tire size.....I was looking for that size a while back and could not find a single tire manufacturer that currently made a 265/35/19.
01-02-2003, 05:33 PM
#46
Re: Re: BOTTOM LINE!!
HEY! My thread is getting hijacked by 19 inchers!!! 
Woops... yes I meant in inches.
If I remember correctly, I think those were the numbers. I'd have to verify this to be 100% sure though. But from your calculation, the numbers appear reasonable.
Originally posted by jreiter
Good point... I hadn't thought of the ABS side of things when it comes to tire diameter differences. Are the numbers you listed above supposed to be in inches? For example, the rear tires can be no less than 1/2" bigger and no more than 3/4" bigger than the fronts? (You said you weren't sure on those numbers, so I'm just using them as examples, also.) It would be very good to have these numbers for future reference.
Good point... I hadn't thought of the ABS side of things when it comes to tire diameter differences. Are the numbers you listed above supposed to be in inches? For example, the rear tires can be no less than 1/2" bigger and no more than 3/4" bigger than the fronts? (You said you weren't sure on those numbers, so I'm just using them as examples, also.) It would be very good to have these numbers for future reference.
If I remember correctly, I think those were the numbers. I'd have to verify this to be 100% sure though. But from your calculation, the numbers appear reasonable.
01-02-2003, 05:33 PM
#47
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Joe and SLVR Z-
I have been wondering about the TCS and wheel changes. This has been a small headache for the NSX folks. Once you know the exact range, selecting tire/wheel combos aren't too big a hassle. Just have to do the calculations.
Anyone with the Service Manuals-
Is this listed in the Manual somewhere?
Scott-
I wouldn't put anything larger than 255 on an 8" wheel. I don't think I would trust much the guy that wrote that email says. 295 on an 8" wheel
The Yoko AVS Sport in 255/40ZR19 would fit nicely. 
JD
I have been wondering about the TCS and wheel changes. This has been a small headache for the NSX folks. Once you know the exact range, selecting tire/wheel combos aren't too big a hassle. Just have to do the calculations.
Anyone with the Service Manuals-
Is this listed in the Manual somewhere?
Scott-
I wouldn't put anything larger than 255 on an 8" wheel. I don't think I would trust much the guy that wrote that email says. 295 on an 8" wheel
The Yoko AVS Sport in 255/40ZR19 would fit nicely. JD
01-02-2003, 05:46 PM
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Originally posted by wadd3456
Freekin figures.
Hey, why are people running 275 35's in the rear on 19s? That doesnt match up to anything.
Freekin figures.
Hey, why are people running 275 35's in the rear on 19s? That doesnt match up to anything.
275/35-19 3.8 in 13.3 in 26.6 in 83.5 in 759 / mile -0.4%
http://powerdog.com/tiresize.cgi
Doesn't get much closer than that.
275/35/19 is the correct plus one/two size for the stock 17's/18's
01-02-2003, 06:07 PM
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Originally posted by Apexi350z
Damn, just when I thought it's the right upgrade for me
so I guess it's back to:
235/40r18 front
255/40r18 rear
that should be safe right?
(forgot if it was 40series or 45series)
Damn, just when I thought it's the right upgrade for me
so I guess it's back to:
235/40r18 front
255/40r18 rear
that should be safe right?
(forgot if it was 40series or 45series)
01-02-2003, 06:08 PM
#50
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Scott-
The 275 will fit and will work on an 8" rim. It is not necessarily ideal, but will not cause problems. The tire will definitely NOT come off of the wheel.
The wheels will be ready to ship out in the second or third week of this month. Since you are buying tires locally, we will probably be able to ship out: next week or a few days after that, we are awaiting customs clearance
Kind regards,
Derek
SPY Sales Team
Hmmmmmmm
The 275 will fit and will work on an 8" rim. It is not necessarily ideal, but will not cause problems. The tire will definitely NOT come off of the wheel.
The wheels will be ready to ship out in the second or third week of this month. Since you are buying tires locally, we will probably be able to ship out: next week or a few days after that, we are awaiting customs clearance
Kind regards,
Derek
SPY Sales Team
Hmmmmmmm
01-02-2003, 06:11 PM
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Originally posted by articfury
Joe and SLVR Z-
I have been wondering about the TCS and wheel changes. This has been a small headache for the NSX folks. Once you know the exact range, selecting tire/wheel combos aren't too big a hassle. Just have to do the calculations.
Anyone with the Service Manuals-
Is this listed in the Manual somewhere?
Scott-
I wouldn't put anything larger than 255 on an 8" wheel. I don't think I would trust much the guy that wrote that email says. 295 on an 8" wheel The Yoko AVS Sport in 255/40ZR19 would fit nicely.
JD
Joe and SLVR Z-
I have been wondering about the TCS and wheel changes. This has been a small headache for the NSX folks. Once you know the exact range, selecting tire/wheel combos aren't too big a hassle. Just have to do the calculations.
Anyone with the Service Manuals-
Is this listed in the Manual somewhere?
Scott-
I wouldn't put anything larger than 255 on an 8" wheel. I don't think I would trust much the guy that wrote that email says. 295 on an 8" wheel
The Yoko AVS Sport in 255/40ZR19 would fit nicely. JD
If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
If the following components are replaced with non-genuine components or converted, the VDC OFF indi-cator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Compo-nents related to suspension (Shock Absorber, Strut, Spring, Bush, etc.), Tires, wheels (exclude specified size), components related to brake (Pad, Rotor, Caliper, etc.), Components related to engine (Muffler, ECM, etc.), Components related to body reinforcement (Roll bar, Tower bar, etc.).
Joe
01-02-2003, 11:17 PM
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I like mine
I bought from America's too but my rims are 8.5 all around and I have 275 in the rears and love it. They had the air pressure at 35 and I lowered it to 32 and it handles excellent.
I know everyone will say it needs to be a 9 inch rim but the Company sent my rims mounted and balanced and a rep from America's Parent Company enmailed me personally that it will be fine.
Bottom line they handle better than the stock 17's with Potenza's
(especially at high speed cornering) and I am keeping them.
'
I hard copied the email from America's saying it was fine so if anything happens the laibility is on them anyway.
Crap I ran 315 Nitto DR's on my FireHawk with the air pressue at 16 hot and ran a 12.1 on Nitrous!
I think people tend to over react about these types of things. I like my 8.5 275's and I am keeping them regardless
I know everyone will say it needs to be a 9 inch rim but the Company sent my rims mounted and balanced and a rep from America's Parent Company enmailed me personally that it will be fine.
Bottom line they handle better than the stock 17's with Potenza's
(especially at high speed cornering) and I am keeping them.
'
I hard copied the email from America's saying it was fine so if anything happens the laibility is on them anyway.
Crap I ran 315 Nitto DR's on my FireHawk with the air pressue at 16 hot and ran a 12.1 on Nitrous!
I think people tend to over react about these types of things. I like my 8.5 275's and I am keeping them regardless
01-03-2003, 03:14 AM
#54
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Excellent comment, thanks.
Also, I am NOT buying tires from this guy. I told him in the last email that all i want is the rims. I will be having a friend of mine get tires cheaper and install them PERSONALLY. He is a tiresplus manager and is also confident there is NO problem.
He said if there is, we can just rip them off and run a thinner tire. NO problem!
Also, I am NOT buying tires from this guy. I told him in the last email that all i want is the rims. I will be having a friend of mine get tires cheaper and install them PERSONALLY. He is a tiresplus manager and is also confident there is NO problem.
He said if there is, we can just rip them off and run a thinner tire. NO problem!
01-03-2003, 06:54 AM
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Originally posted by BFG10
I think I agree with you Apexi350z. That's probably what I'm going to do after reading all of this and from some of the other threads. But is there any point to going with these sizes rather than just sticking with the stock sizes? I want a wider tire with a lower profile look that will look better than the RE040's currently under my Z. Will this do it?
I think I agree with you Apexi350z. That's probably what I'm going to do after reading all of this and from some of the other threads. But is there any point to going with these sizes rather than just sticking with the stock sizes? I want a wider tire with a lower profile look that will look better than the RE040's currently under my Z. Will this do it?
04-08-2003, 02:34 PM
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Toyo 275's
I met a dude at a show this weekend that fit 19"x 9" rims with 245's on the front and 19x10"!!! with 275's on the rear!!!It looked nice..I have 18x8 -225 and 18x9" with 245's on the rear of mine..
04-14-2003, 07:22 AM
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Not to get anyones boxer briefs in a bunch but I just got off the phone with Amity Nissan parts dept. and he told me the 18 inch rims on the performance 350 are 18x 8 up front and 18x 8.5 in the rear...he also told me the cost for both are the same $1430.00 each for the rims only. Can anyone get an offical answer from Nissan..after all they did build the damn car and should know. I am not discounting what anyone has said here about this issue...all I am saying is that its not black and white at this point.