27540ZR19 for rear tires?

jchammond · 01-20-2017, 08:09 PM

Quote:

Originally Posted by Zatanna Z

Oh and I'm wondering how does this tire size affect performance?

Shorter tires will gear you lower & acceleration will be quicker through the gears

jchammond · 01-20-2017, 08:14 PM

Quote:

Originally Posted by Zatanna Z

Option zero- I just checked my tires as I speak the fronts say 24540zr19 so I'm not sure if they're DC'd now or what but that's what I read. I'm not the one who got these tires in the first place since I bought the car used. And I'm very OCD about doing things properly when it comes to my cars. I tried researching on this forum if that tire size is okay.. couldn't find much. So I asked around to some people I know who know quite a bit about cars they told me I'd be okay..

OCD,,,look in the door jamb & it will tell you what size came on the car...if it still has the factory wheels it came with.

ChaseZ · 01-20-2017, 10:25 PM

And since when do you have to run same tires front and rear?

My fronts

My rears

And my rears are about to be these

Zatanna Z · 01-20-2017, 10:40 PM

Quote:

Originally Posted by jchammond

OCD,,,look in the door jamb & it will tell you what size came on the car...if it still has the factory wheels it came with.

Yeah Ive checked that out already.

Zatanna Z · 01-20-2017, 10:41 PM

Quote:

Originally Posted by ChaseZ

And since when do you have to run same tires front and rear?

My fronts

My rears

And my rears are about to be these

What sizes you gonna be running front and back? Those tires look beefy

ChaseZ · 01-21-2017, 12:42 AM

Quote:

Originally Posted by Zatanna Z

What sizes you gonna be running front and back? Those tires look beefy

I run 18's so subtract 5 off each sidewall for the equivalent in 19"

F: 275/40
R: 325/35

Zatanna Z · 01-21-2017, 02:40 AM

Quote:

Originally Posted by ChaseZ

I run 18's so subtract 5 off each sidewall for the equivalent in 19"

F: 275/40
R: 325/35

Have you ever rode in that set up before?

Zatanna Z · 01-21-2017, 06:01 PM

Put these tires to the test today, since it was a warmer day out today I figured it'd be a good day for it.. anyway, car seems to have fast acceleration and also didn't have any traction lights come on, abs lights, etc. I think I'll just keep these on until I have to get new tires again and next time around I'll get a different set up. Maybe 255/40/19 front and 285/35/19 in the back

jchammond · 01-22-2017, 04:41 AM

With your 245,275/40/19 setup; this may be the most diameter differential I've seen without causing the Christmas Tree effect.
Around a 3.5% difference @ right at a full inch taller in rear.
Is your Z a Sport with 9/10 stagger or 9.5/10.5 Nismo stagger?

ChaseZ · 01-22-2017, 10:34 AM

Yes I'm running different tires front and rear right now. It is the height you need to watch for not the width.

With that inch taller rear tire remember you are effectively changing your rear end ratio, which is a torque multiplier. Your speedometer will also be off now, as will the mileage you are putting on your odometer.

Zatanna Z · 01-22-2017, 03:52 PM

Quote:

Originally Posted by jchammond

With your 245,275/40/19 setup; this may be the most diameter differential I've seen without causing the Christmas Tree effect.
Around a 3.5% difference @ right at a full inch taller in rear.
Is your Z a Sport with 9/10 stagger or 9.5/10.5 Nismo stagger?

I have a touring

Zatanna Z · 01-22-2017, 03:54 PM

Quote:

Originally Posted by ChaseZ

Yes I'm running different tires front and rear right now. It is the height you need to watch for not the width.

With that inch taller rear tire remember you are effectively changing your rear end ratio, which is a torque multiplier. Your speedometer will also be off now, as will the mileage you are putting on your odometer.

Yeah I know, that's why I'm not a huge fan of this set up. Like I said before it just sucks the previous owner had these tires on in the first place. That's why when I get some money saved up I'm just gonna get some nice summer tires for spring and summer and I'll just keep this all season set up for winter only when it's only used for a little bit.

B&W_Evader · 01-23-2017, 10:48 AM

RE-11, 245s up front 285s in the rear. Great summer tire setup that will get you a lot of miles. (40k on my last set) It does not get cold enough to be an issue here but I wouldn't leave them on (or any max performance summer tire) in the winter in Nebraska.

Zatanna Z · 01-23-2017, 12:29 PM

Quote:

Originally Posted by B&W_Evader

RE-11, 245s up front 285s in the rear. Great summer tire setup that will get you a lot of miles. (40k on my last set) It does not get cold enough to be an issue here but I wouldn't leave them on (or any max performance summer tire) in the winter in Nebraska.

I'll look into those tires. My plan is to get new summer tires and new black aftermarket wheels when I get my tax return.. I am pretty excited for it! And since I live in the Nebraska my plan is for when the winter comes around I'll just put these pirelli all seasons on and swap them every winter/spring.

Zatanna Z · 01-23-2017, 12:31 PM

Quote:

Originally Posted by ChaseZ

Yes I'm running different tires front and rear right now. It is the height you need to watch for not the width.

With that inch taller rear tire remember you are effectively changing your rear end ratio, which is a torque multiplier. Your speedometer will also be off now, as will the mileage you are putting on your odometer.

Putting my odometer to the test. I went to the gym this morning and looked up the miles to the gym and my odometer was right on the money. It's GTG so far. I'll keep doing tests on it

01-20-2017, 10:25 PM	#18 (permalink)
ChaseZ A True Z Fanatic Join Date: May 2016 Location: Calgary Posts: 3,799 Drives: 16 370z Rep Power: 94683	And since when do you have to run same tires front and rear? My fronts My rears And my rears are about to be these jchammond likes this.

01-22-2017, 04:41 AM	#24 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	With your 245,275/40/19 setup; this may be the most diameter differential I've seen without causing the Christmas Tree effect. Around a 3.5% difference @ right at a full inch taller in rear. Is your Z a Sport with 9/10 stagger or 9.5/10.5 Nismo stagger? __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

01-23-2017, 10:48 AM	#28 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 387	RE-11, 245s up front 285s in the rear. Great summer tire setup that will get you a lot of miles. (40k on my last set) It does not get cold enough to be an issue here but I wouldn't leave them on (or any max performance summer tire) in the winter in Nebraska. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

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01-21-2017, 06:01 PM	#23 (permalink)
Zatanna Z Enthusiast Member Join Date: Dec 2016 Location: Nebraska Posts: 254 Drives: 2010 Nissan 370z 6MT Rep Power: 9	Put these tires to the test today, since it was a warmer day out today I figured it'd be a good day for it.. anyway, car seems to have fast acceleration and also didn't have any traction lights come on, abs lights, etc. I think I'll just keep these on until I have to get new tires again and next time around I'll get a different set up. Maybe 255/40/19 front and 285/35/19 in the back

01-22-2017, 10:34 AM	#25 (permalink)
ChaseZ A True Z Fanatic Join Date: May 2016 Location: Calgary Posts: 3,799 Drives: 16 370z Rep Power: 94683	Yes I'm running different tires front and rear right now. It is the height you need to watch for not the width. With that inch taller rear tire remember you are effectively changing your rear end ratio, which is a torque multiplier. Your speedometer will also be off now, as will the mileage you are putting on your odometer.