Awd ?

skep_tic1 · 07-14-2012, 03:19 PM

As with the GTR....... How does the the AWD system function having a rear tire height that is .06% taller than its front tire? My first guess is that this isn't enough of a difference to matter but it works out to be about 5 revolutions per mile of difference. Enlighten me please. The reason I ask is because I want to put a set of 370 wheels and tires on my wifes Juke and I think it has the same AWD system as the GTR......

DarkJak · 07-14-2012, 03:36 PM

Probably works because it's just .06% taller.

DjSquall · 07-14-2012, 03:49 PM

I'm sure Nissan has it all figured out with the GT-R.

PapoZalsa · 07-14-2012, 05:07 PM

All the tires should be the same in an AWD vehicle. I had to put a different size of tires about .06% taller also on my old lady SUV and the dealer was refusing to install them stating it was AWD.

Anyway I had to proof them wrong after a long wait and argument, long story.

Red__Zed · 07-14-2012, 05:18 PM

The big difference with the GTR is the way the AWD is set up.

The ATTESA E-TS is pretty unique, and during the vast majority of the time, ~98% of the power is going to the rear wheels. You will actually see guys throw ATTESA codes when running mismatched tires, or if they are driving in such a way that they are seeing a pretty even tq split.

On a car like a WRX, you have a viscous coupling F/R that will overheat and grenade itself if you mismatch F/R. On the GTR, you are looking a slightly increased clutch wear, and it really is only ramping up wear when it is actually engaging AWD. The combo of a very small difference combined with how infrequently power goes to the front wheels means that you really don't see much extra wear.

dmhenderson · 07-14-2012, 05:20 PM

The GTR is powered by FRIEND COMPUTER. Literally everything in that car is computer controlled. I got to play around with one at Carlisle and the interior (I really want to call it a cockpit) is just ridiculous.

I have heard stories (3rd hand) of people with GT-Rs messing with wheel sizes etc and having problems but who knows.

DR_ · 07-14-2012, 07:53 PM

.06" is within the same parameters as tire wear or under or over inflation. No biggie.

kenchan · 07-14-2012, 10:20 PM

and it's not like you're driving perfectly straight all the time either.

07-14-2012, 03:19 PM	#1 (permalink)
skep_tic1 Base Member Join Date: Jul 2012 Location: Raleigh NC Posts: 3 Drives: 2011 Juke Rep Power: 13	Awd ? As with the GTR....... How does the the AWD system function having a rear tire height that is .06% taller than its front tire? My first guess is that this isn't enough of a difference to matter but it works out to be about 5 revolutions per mile of difference. Enlighten me please. The reason I ask is because I want to put a set of 370 wheels and tires on my wifes Juke and I think it has the same AWD system as the GTR...... Last edited by skep_tic1; 07-14-2012 at 09:09 PM.

07-14-2012, 05:07 PM	#4 (permalink)
PapoZalsa A True Z Fanatic Join Date: Nov 2009 Location: Not in Sunny Florida Posts: 6,358 Drives: 16 Nismo w/Tech Pack Rep Power: 4500	All the tires should be the same in an AWD vehicle. I had to put a different size of tires about .06% taller also on my old lady SUV and the dealer was refusing to install them stating it was AWD. Anyway I had to proof them wrong after a long wait and argument, long story. __________________ 2009 370Z MB Base w/Sport Package 6MT Modshack's Custom Air Intakes /3M Clear Bra/ Illuminated Kick Plates / F. I CBE w/12" resonators / EVO-R Front Lip / Rear Hatch Wing / Tein S-Tech Springs /Ilegal Tint in the Rep. of VA/4x20mm Z1 Spacers/ Vinyl Roof/Liquid Carbon Designs

07-14-2012, 03:36 PM	#2 (permalink)
DarkJak A True Z Fanatic Join Date: Jun 2011 Location: Madison, WI Posts: 1,397 Drives: 2009 370Z Rep Power: 16804	Probably works because it's just .06% taller.

07-14-2012, 03:49 PM	#3 (permalink)
DjSquall A True Z Fanatic Join Date: Apr 2010 Location: Tottenham, ON Age: 36 Posts: 1,340 Drives: My first car Rep Power: 22	I'm sure Nissan has it all figured out with the GT-R.

07-14-2012, 05:18 PM	#5 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 120	The big difference with the GTR is the way the AWD is set up. The ATTESA E-TS is pretty unique, and during the vast majority of the time, ~98% of the power is going to the rear wheels. You will actually see guys throw ATTESA codes when running mismatched tires, or if they are driving in such a way that they are seeing a pretty even tq split. On a car like a WRX, you have a viscous coupling F/R that will overheat and grenade itself if you mismatch F/R. On the GTR, you are looking a slightly increased clutch wear, and it really is only ramping up wear when it is actually engaging AWD. The combo of a very small difference combined with how infrequently power goes to the front wheels means that you really don't see much extra wear.

07-14-2012, 05:20 PM	#6 (permalink)
dmhenderson A True Z Fanatic Join Date: Feb 2011 Location: Maryland Posts: 5,930 Drives: AWD TT 370z Rep Power: 26	The GTR is powered by FRIEND COMPUTER. Literally everything in that car is computer controlled. I got to play around with one at Carlisle and the interior (I really want to call it a cockpit) is just ridiculous. I have heard stories (3rd hand) of people with GT-Rs messing with wheel sizes etc and having problems but who knows.

07-14-2012, 07:53 PM	#7 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 17	.06" is within the same parameters as tire wear or under or over inflation. No biggie.

07-14-2012, 10:20 PM	#8 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	and it's not like you're driving perfectly straight all the time either.