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Discussion Starter · #1 ·
Here my new combo
RX8 Rims 16x7,5 with Dunlop Sport D8z 225/55 94V




Those Dunlop 225/55 are extremely higher compare to my stock 205/55. They Rub, with passengers in the back seat specially when I get a pothhole. SH...T this tires weight around 26 lbs :irate: :swearin:

To the Left the Bridgestone Turanza ER30. Right, the Dunlop D8z




Is a huge difference. Look like a truck tire :D

Dunlop D8z
















Here my other Sets :D
Left: SSR GT1 17x7,5 Offset 48mm with Toyo T1R 225/45
Center (Back): RX8 16x7.5 Offset 50mm with Dunlop Sport D8z 225/55
Right: Stock Mazda 6 16x7 Offset 55mm with Bridgestone Turanza ER 30 205/55
 

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Discussion Starter · #3 ·
Rims came with the tire. I bought the package.
Like I saw in Tirerack that Dunlop D8z have two different models. One model weight 22 lbs and the other 26 lbs (mine).

Ummm I miss my T1R 225/45 R17 (20,9 lbs) :(

Probably the next model will be a 225/45 R16 (19,8 lbs)


Ummm... but I have 5 GT1 :D
 

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Discussion Starter · #4 ·
Anyone with this R16x7,5 and 225/45? I am planning to change to T1R 225/45 93W. Any problem with that size?
With my actually set I have problems in the rear fender with passengers in the back seat .
 

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Im running 225/50/16 all around, and the two things i noticed is that is was significantly lighter than stock and my cruising rpm's at around 75-80mph is a lil bit higher. 225/45's would look to be a tad bit smaller, and more or less should be the same as the differencer i saw with my 225/50. I also rolled my fenders (it rubbed with 3 other passengers)
 

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Discussion Starter · #7 ·
:thumbup:

Yeah, I would like to go lighter, but actually I am running with the stock set RX8 R16x7,5 (around 17,5 lbs) a similar weight than my other rims SSR GT1 17x7,5. The problem are the stock RX8 tires, Dunlop Sport D8z 225/55 (Overall diameter=25,6" and the section width=9,5"), are very, very Heavy, 26 lbs. And like you said and read in other posts, I have problem in the rear fender, they rubbed more frecuently with one passenger in the rear seat. No problem in a flat road.
The fender hit the exterior of the tires.
I have Eibach.
Here, I dont know where to roll the fender, that why I am asked opinions about the 225/45.
That why probaby I get the Toyo T1R 225/45 (Overall diameter=23,9" and the section width=8,9").

I didnt have problems with my SSR GT1 17x7,5 Offset +48mm with Toyo T1R 225/45 (Overall diameter=24,9" and the section width=8,7"),
 

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^^^I see. The 16" RX8 rims are similar to the Rx7 wheels with an offset of 50 right? If so, it would be very similar to my setup.

The rubbing i had was scraping off very thin chunks of the tire, becuase of the the tire bulge and you can hear it scraping against the fender.

You may not have that problem with the 225/45/16 since it is a smaller diameter tire, but if you do, you can do what i did before i rolled my fender. I used the handle of a hammer to push the inner part of the fender up. I used the wheel itself for leverage, with the handle of the hammer on the inner side of the fender to push that piece up.

Hope that helps
 

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Discussion Starter · #9 ·
The rubbing i had was scraping off very thin chunks of the tire, becuase of the the tire bulge and you can hear it scraping against the fender.
Exactly, that problem. Yeah, I found some pieces of burned rubber on the fender.

You may not have that problem with the 225/45/16 since it is a smaller diameter tire, but if you do, you can do what i did before i rolled my fender. I used the handle of a hammer to push the inner part of the fender up. I used the wheel itself for leverage, with the handle of the hammer on the inner side of the fender to push that piece up.

Hope that helps
[/b]
Thanks for the advice jaysonday :thumbup: I read somewhere about using a bat, but first I will try a hammer
 

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hi all,

i lowered my ride with tanabe nf210 spring. the current wheel gap is front = 4 fingers, rear = 3 fingers.

i'm planning to install rx8 stock wheels (18x8, +50 offset, 225/45/18 tire)

will this narrow the wheel gap to front=3 fingers, rear=2 fingers

feel free to share your views and comments.

thanks !
 

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hey scorpion6,

How was the ride comfort w/ the 225/55 tires compared to the 225/50 tires? I'm planning to get 225/55 for my next set. Is it more comfortable since the sidewalls bigger?
 

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Discussion Starter · #12 ·
Hi jaysonday, long time without post here, a lot of work over here hehehe

The ride comfort with the 225/55 tires compared to the 225/50 tires? I replaced the 225/55 for the 225/50 (actually in my 6). The 55 is ok but huge and heavy specially the original Dunlop that come with teh RX8 rims hahahaha, you need to rub the rear fender, also with the 50. Remember that I also have the Eibach Pro Kit.
I feel the ride very similar maybe a little more the 55 but the 50 is ok.
Now I am planning to lower to 45 specially for the weight :yesnod: :drive:
 

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QUOTE (jaysonday @ Feb 11 2009, 02:06 PM) index.php?act=findpost&pid=1518276
hey scorpion6,

How was the ride comfort w/ the 225/55 tires compared to the 225/50 tires? I'm planning to get 225/55 for my next set. Is it more comfortable since the sidewalls bigger?[/b]
I had 225/55/16s on before and I'd definitely go with 225/50 or 225/45. Though it depends on the tire, the sidewall is just too damn soft at that aspect ratio.
 
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