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Staggered setup on AWD ! - The Mother Thread - !

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Old 10-12-10, 03:27 PM
  #91  
ScKcBc
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if anyone wants to compare rolling diameters to equalize front and rear diameters when going staggered, here's a great link

http://www.1010tires.com/tiresizecalculator.asp
Old 10-12-10, 07:36 PM
  #92  
UmattWayO
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Originally Posted by Big *****
What I don't understand is the donut sized spare in these cars. What happens when you get a flat and need to ride for any distance on that thing?
+1 on this question, it was nvr answered.

So what is the "safe" zone because 235/35/19 is closest with 275/30/19, is 225/35/19 with 265/30/19 safe as well, would I have to worry about this?
I don't want it too beefy with 275 in the back but I know that's the safest bet.

I'm stuck between getting 19x8.5 all around or 19x8.5(F) and 19x10(R)
there are too many people telling it it isn't safe/good idea to do staggered, so I really don't know if I should risk it. The whole thread talks about the overall diameter being the same, but what about the weight? Since the rear is wider, it would be heavier than the front, wouldn't that affect the AWD system? Sorry if this is a nub question, but I want to clear up all my uncertainties so I can make a decision.

Either:
Five:AD R5:F - 19x8.5 +30 all around
OR
Linea Corse LC818

Thanks,

Matt
Old 10-17-10, 10:39 AM
  #93  
kuuqi
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To answer your question (and the one about the donut), you can safely run staggered on your car so long as the rolling diameter is as close as possible. The AWD system isn't going to detect anything besides how fast the wheels are rolling so if they're close, it won't do anything. The 235/35/19 and 275/30/19 would be your best bet at approximately 0.073% difference, the system wouldn't notice it whatsoever.

Also, I've run my car with 4 tires with different tread wear (all about 5 to 10000 miles apart) on them for about 40000 miles no problem. I've also run on 3 different tread tires PLUS 1 donut for 500+ miles, no problem. My car's running perfectly fine. Besides, even if you buy 4 brand new tires, you can't guarantee they're all PERFECTLY the same size. They'll be off by a small amount (at a bare minimum at the molecular level). AWD systems are designed to compensate that difference.
Old 10-17-10, 10:42 AM
  #94  
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Originally Posted by kuuqi
To answer your question (and the one about the donut), you can safely run staggered on your car so long as the rolling diameter is as close as possible. The AWD system isn't going to detect anything besides how fast the wheels are rolling so if they're close, it won't do anything. The 235/35/19 and 275/30/19 would be your best bet at approximately 0.073% difference, the system wouldn't notice it whatsoever.

Also, I've run my car with 4 tires with different tread wear (all about 5 to 10000 miles apart) on them for about 40000 miles no problem. I've also run on 3 different tread tires PLUS 1 donut for 500+ miles, no problem. My car's running perfectly fine. Besides, even if you buy 4 brand new tires, you can't guarantee they're all PERFECTLY the same size. They'll be off by a small amount (at a bare minimum at the molecular level). AWD systems are designed to compensate that difference.
You ran a donut for 500 miles? Are you dumb? Let me guess you also are one of the those people doing 70+ on the hwy with your donut. Just nonsense....
Old 10-19-10, 09:51 PM
  #95  
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Ha well I had to get home THAT DAY and my tire was blown. And all the places that I went to didn't have the tire I needed on hand so I had no other choice but to ride on the donut. Not like I wanted to.

And to attest, I drove the whole way back at roughly 40-50mph (no higher) with frequent stops to check on the tire. I drove the entire way back on the right lane and let every single person pass by me. I also stopped by as many tire shops as I could find to find my tire but nobody had it. So am I dumb? No. Just getting my girl and I back home on-time for work and class is just a little more important to me than my car.
Old 10-30-10, 08:15 PM
  #96  
ltzSupra
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Originally Posted by Chekmi21
Will the OEM IS250/IS350 18s with the OEM tires size work on AWD?
anyone have the answer to this question?
Old 10-30-10, 08:47 PM
  #97  
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Originally Posted by ltzSupra
anyone have the answer to this question?
It will not work on AWD..

OEM 18's are
Front: 225/40/18, 18x8, +45mm
Rear: 255/40/18, 18x8.5, +50mm

That is nearly 2" of difference in overall diameter which is not recommended at all for AWD. The only way it'll work is if you purchase all 4 exact same sizes of either Front or Rear.
Old 10-30-10, 08:51 PM
  #98  
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Originally Posted by Muggy
It will not work on AWD..

OEM 18's are
Front: 225/40/18, 18x8, +45mm
Rear: 255/40/18, 18x8.5, +50mm

That is nearly 2" of difference in overall diameter which is not recommended at all for AWD. The only way it'll work is if you purchase all 4 exact same sizes of either Front or Rear.
What size would you recommend for all four tires with these rims?
Old 10-31-10, 08:01 AM
  #99  
mdgrwl
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Default 23K miles

so far, 23K miles on my wifes IS250awd and no issues

running staggered Vossens

235/35/19
&
270/30/19


23K and smooth sailing
Old 11-03-10, 10:10 AM
  #100  
AWDLEX
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Very informative thread. Have any of you experienced camber issues due to lowering? Did you have to get an adjustable camber kit?
Old 11-09-10, 04:42 PM
  #101  
Phresh2010
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Originally Posted by ltzSupra
What size would you recommend for all four tires with these rims?
im running 225/40/18 on my awd, only had them for a week so but not much noticeable difference in anything
Old 11-09-10, 06:39 PM
  #102  
mikez
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75k so far and A okay.
Old 11-09-10, 09:29 PM
  #103  
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will you guys' spec work on is350 awd?
Old 11-10-10, 06:14 AM
  #104  
A/C
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Originally Posted by ltzSupra
What size would you recommend for all four tires with these rims?
My AWD runs on 18' stockies 225/40 front and 255/35 rear. Perfect size and zero problems
Old 11-10-10, 08:57 AM
  #105  
ltzSupra
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Originally Posted by A/C
My AWD runs on 18' stockies 225/40 front and 255/35 rear. Perfect size and zero problems
Nice!! I think I may look into this. Got pics?


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