5 axis S5:F Tire Size Help
06-04-11, 11:59 PM
#46
The Reason for the 265/30, instead of 265/35, is that the 35 will look much thicker when you visually look at the side of the car.
The Front 235/35 balances well with a Rear 265/30...
Kinda like the oem tire sizes
Also, an IS250/IS350 will get some rubbing issues if lowered up front with our set up. The rears will clear just fine...
On the IS-F the fronts clear just fine, however on the rears, the fender lips needs shaving...
Joe Z
The Front 235/35 balances well with a Rear 265/30...
Kinda like the oem tire sizes
Also, an IS250/IS350 will get some rubbing issues if lowered up front with our set up. The rears will clear just fine...
On the IS-F the fronts clear just fine, however on the rears, the fender lips needs shaving...
Joe Z
And I don't really mind if the rear is thicker, I just want to get closer to the stock rolling diameter.
oo, so you purposely did tht. but giantfans say that you will get a 3 km off reading on your speed. is that true for you?
when you say shaving is require, i'll read that multiple times else where, wht does it actually do. taking a knife and cutting the inside well of the wheel? XD
when you say shaving is require, i'll read that multiple times else where, wht does it actually do. taking a knife and cutting the inside well of the wheel? XD
... you can use any tire calculator online to figure out the difference in rolling diameters between different tire sizes.
06-05-11, 12:04 AM
#47
Courtesy of RMMGS4! (Found it on google 
)http://www.youtube.com/watch?v=035C7Eubqwk
06-05-11, 10:06 AM
#48
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The Front Fender bolt & tab usually becomes an issue for the IS250/IS350 once lowered about an inch.
**But not for the IS-F.
For the 265/30 - Yes I have been aware of the 3% difference for years now... Its basically 3% "too fast".... So when you're rolling @ 60mph, the speedo will display 62 mph...
When you switch to 265/35 - it's basically 1% "too slow".. So when you're rolling at 60 mph, the speedo will display 59 mph..
Either way not a major issue...
~ Joe Z
**But not for the IS-F.
For the 265/30 - Yes I have been aware of the 3% difference for years now... Its basically 3% "too fast".... So when you're rolling @ 60mph, the speedo will display 62 mph...
When you switch to 265/35 - it's basically 1% "too slow".. So when you're rolling at 60 mph, the speedo will display 59 mph..
Either way not a major issue...
~ Joe Z
Joe, when you say lowered, how low do you mean? I'm planning on getting F-Sport or H&R springs (Defiantly NOT slammed!), but don't want to rub. Just from eyeballing it looks ok, but if worst comes to worst I wouldn't mind shaving 1 or 2 mm off the center hub of the wheel to raise the offset to +31 or +32 like another member did.
And I don't really mind if the rear is thicker, I just want to get closer to the stock rolling diameter.
Its 3%, and yes, Joe and I have the same setup ... you can use any tire calculator online to figure out the difference in rolling diameters between different tire sizes.
And I don't really mind if the rear is thicker, I just want to get closer to the stock rolling diameter.
Its 3%, and yes, Joe and I have the same setup
... you can use any tire calculator online to figure out the difference in rolling diameters between different tire sizes.
_
06-05-11, 11:31 AM
#51
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Well I was lowered about an 1" on coils on the IS350, and was running a more square tire (Yokohama Advan Sports)..
I never had springs, so I'm not too sure..
Joe Z
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