265/40/18 tires on OEM 18" rims?

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Old 03-03-2011, 08:24 PM
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265/40/18 tires on OEM 18" rims?

Yes I know I just bought the car and I only have 400 miles on it, but will 265/40/18 tires fit properly on the OEM rims?

Also what cold psi is everyone running for tire pressure?
Old 03-03-2011, 08:58 PM
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Trying to match your vette?
Old 03-03-2011, 09:04 PM
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Running 32-33 cold PSI. Seems to work pretty well.
Old 03-03-2011, 09:09 PM
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Originally Posted by justnspace
Trying to match your vette?
No. I just want the maximum contact patch possible. I had a chance to air out the car on some twisties this afternoon and it was amazing. I actually like it better than the ZR1 because if I even twich in that car, I'm putting my life and someone else's in danger. In the TL, the SH-AWD is truly awesome. Basically turn to the traction limit and then ease into the gas and over drive the car. That is opposite from everything I have ever known. I can steer the ZR1 with the throttle, but in a 4000 pound car with a 59% front weight bias? How is that possible? The engineers at Acura are some smart dudes for sure! I am wondering how the TL would handle with more contact patch.

The TL is no drifter, but it is simply fantastic. The ZR1 is a beast and you better know what you are doing or you are a dead man. My joke is it is 0 to your grave in 4 seconds. The moment you don't respect that car, you will not get another chance to see day light. By far in comparison the TL is tame and utilitarian. Lots of fun.
Old 03-03-2011, 10:21 PM
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Originally Posted by Moneyman2011
No. I just want the maximum contact patch possible. I had a chance to air out the car on some twisties this afternoon and it was amazing. I actually like it better than the ZR1 because if I even twich in that car, I'm putting my life and someone else's in danger. In the TL, the SH-AWD is truly awesome. Basically turn to the traction limit and then ease into the gas and over drive the car. That is opposite from everything I have ever known. I can steer the ZR1 with the throttle, but in a 4000 pound car with a 59% front weight bias? How is that possible? The engineers at Acura are some smart dudes for sure! I am wondering how the TL would handle with more contact patch.

The TL is no drifter, but it is simply fantastic. The ZR1 is a beast and you better know what you are doing or you are a dead man. My joke is it is 0 to your grave in 4 seconds. The moment you don't respect that car, you will not get another chance to see day light. By far in comparison the TL is tame and utilitarian. Lots of fun.
Glad to see someone who drives a nice car like you do appreciate a TL SH-AWD
Old 03-03-2011, 10:24 PM
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Originally Posted by Moneyman2011
No. I just want the maximum contact patch possible. I had a chance to air out the car on some twisties this afternoon and it was amazing. I actually like it better than the ZR1 because if I even twich in that car, I'm putting my life and someone else's in danger. In the TL, the SH-AWD is truly awesome. Basically turn to the traction limit and then ease into the gas and over drive the car. That is opposite from everything I have ever known. I can steer the ZR1 with the throttle, but in a 4000 pound car with a 59% front weight bias? How is that possible? The engineers at Acura are some smart dudes for sure! I am wondering how the TL would handle with more contact patch.

The TL is no drifter, but it is simply fantastic. The ZR1 is a beast and you better know what you are doing or you are a dead man. My joke is it is 0 to your grave in 4 seconds. The moment you don't respect that car, you will not get another chance to see day light. By far in comparison the TL is tame and utilitarian. Lots of fun.
What kind of tire are you putting on the TL?
what tire is on the ZR1?

and we love pictures.....
especially vettes
Old 03-03-2011, 10:33 PM
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8 inch, 8.5 inch or 9 inch rim?

If it's 8 inches it's narrow for a 265 section width tire. A lot of people and/or installers will say it's too narrow.
Old 03-03-2011, 11:44 PM
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Originally Posted by Bearcat94
8 inch, 8.5 inch or 9 inch rim?

If it's 8 inches it's narrow for a 265 section width tire. A lot of people and/or installers will say it's too narrow.
completely depends on the width of the rim as to how wide of a tire you can run, and have it fit "properly" (by the tire manufacture spec's




btw OP a 245 normally seems to be the max most recommend with a 40 profile for an 8" rim
Old 03-04-2011, 07:18 AM
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Originally Posted by justnspace
What kind of tire are you putting on the TL?
what tire is on the ZR1?

and we love pictures.....
especially vettes

The ZR1 has Michelin Pilot Sport PS2 ZP tires with 285/30ZR19 on the front and 335/25ZR20 on the rear. It is more than $2000 for a set of four. The longest burout I could muster was 465 feet and then I ran out of road. I probably burned a few hundred of dollars in that one session. Without the traction control, I can light them up in first, second and about 2 seconds into third. Of course the fastest acceleration is with minimal wheelspin.

The TL has OEM Michelin 245/45/18 tires. I was considering the Continental ExtremeContact DWS. I had them on my old TL and they were great! Even if the 265/40/18 tire size is not possible on the TL, that is fine. I would likely change to the Conti tires when the OEM tires wear out.
Old 03-04-2011, 08:21 AM
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I've put 37k on the oem tires and they still have a lot of life left so you'll be waiting for a long time..

If you want 265 width, you'll probably need 9j wheels at least, and lower profiles like a 35 or 40 probably. When I was looking for new wheels, I was looking at 20x9j with 255-35-20 to minimize the difference.
Old 03-04-2011, 09:50 AM
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Originally Posted by Moneyman2011
Yes I know I just bought the car and I only have 400 miles on it, but will 265/40/18 tires fit properly on the OEM rims?

Also what cold psi is everyone running for tire pressure?
Originally Posted by jwjang86
I've put 37k on the oem tires and they still have a lot of life left so you'll be waiting for a long time..

If you want 265 width, you'll probably need 9j wheels at least, and lower profiles like a 35 or 40 probably. When I was looking for new wheels, I was looking at 20x9j with 255-35-20 to minimize the difference.
^Good adviceHowever...

OP,
You should run the recommended PSI. The 10-20mm difference in width between the stock size and the 255-265 will be negated by the load change (assuming the contact patch size increases…and this has been over-debated). The only difference you will notice is in your wallet for more gas (due to the drag and higher roll resistance from the wider tire) and more expensive rubber ($365 more [PS2 245/40-19 vs. 255/35-20] for a set of Michelins). Ya, it will look hot with the 20's but you already have a hot car...

SAVE YOUR MONEY
Old 03-04-2011, 10:08 AM
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Originally Posted by Mr Marco
^Good adviceHowever...

OP,
You should run the recommended PSI. The 10-20mm difference in width between the stock size and the 255-265 will be negated by the load change (assuming the contact patch size increases…and this has been over-debated). The only difference you will notice is in your wallet for more gas (due to the drag and higher roll resistance from the wider tire) and more expensive rubber ($365 more [PS2 245/40-19 vs. 255/35-20] for a set of Michelins). Ya, it will look hot with the 20's but you already have a hot car...

SAVE YOUR MONEY

All good thoughts. Many thanks.
Old 03-04-2011, 01:19 PM
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According to this tire calculator, you need at least 9" wide wheel and the 18's are only 8" wide.
Just plug your numbers in.

http://www.1010tires.com/TireSizeCal...?action=submit
Old 03-04-2011, 02:13 PM
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Originally Posted by jspagna1
According to this tire calculator, you need at least 9" wide wheel and the 18's are only 8" wide.
Just plug your numbers in.

http://www.1010tires.com/TireSizeCal...?action=submit

Great find! Well that settles that. 245/45/18 size tires are the ones we have to stay with.
Old 03-05-2011, 12:23 PM
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Originally Posted by Moneyman2011
Great find! Well that settles that. 245/45/18 size tires are the ones we have to stay with.


OTOH: https://acurazine.com/forums/3g-tl-tires-wheels-suspension-97/they-said-couldnt-done-626278/
Old 03-05-2011, 02:52 PM
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Originally Posted by Bearcat94
BUT by the looks of it though, those might actually be the 8.5" eims though, not the 8" ones
Old 03-05-2011, 03:20 PM
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Originally Posted by friesm2000
BUT by the looks of it though, those might actually be the 8.5" eims though, not the 8" ones
They were/are 8.5" rims. I have the same ones, but have not gone any wider than 255.
Old 03-05-2011, 07:15 PM
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Originally Posted by NBP04TL4ME
They were/are 8.5" rims. I have the same ones, but have not gone any wider than 255.

but most people have the 8" wide ones, and 245 is generally the maximum width recommended though by the tire manufactures though
Old 03-05-2011, 07:47 PM
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Depends on if you want to follow the rules or not.
Back in 2004 based on the feedback on this site - I put 255/40 R17 Goodyear Eagle F1 GS-D3 on my OEM 8.0" rims. Ran them for years without a problem and loved them. Today I have 245/45 R17 Bridgestone Blizzaks on my OEM 8.0" Type-S rims. I got a good deal on these tires otherwise I would run narrower (better in the snow).

For the Summer months I still have my 8.5" A-Spec Rims and am running 255/40 R18 only because I did not want to spend the extra money for the 265s or deal with the ride quality of a lower (35) profile tire. If you read the other thread, the member said it could be done and showed that it could be done. Was it recommended by the tire manufacturers, no but it is his car and he modded it the way he wanted to. Is it smart......... as you read the thread, you will see the varying opinions.

So in short 235, 245 and 255 widths will fit an 8.0" wide rim. I've had personal experience with all three. Would I go to a 265 width, probably not.
To the OP just make sure you use the tire calculator with the profiles in mind to keep the overall dims within range of the OEM set up
Old 03-06-2011, 12:24 AM
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Originally Posted by NBP04TL4ME
Depends on if you want to follow the rules or not.
Back in 2004 based on the feedback on this site - I put 255/40 R17 Goodyear Eagle F1 GS-D3 on my OEM 8.0" rims. Ran them for years without a problem and loved them. Today I have 245/45 R17 Bridgestone Blizzaks on my OEM 8.0" Type-S rims. I got a good deal on these tires otherwise I would run narrower (better in the snow).

For the Summer months I still have my 8.5" A-Spec Rims and am running 255/40 R18 only because I did not want to spend the extra money for the 265s or deal with the ride quality of a lower (35) profile tire. If you read the other thread, the member said it could be done and showed that it could be done. Was it recommended by the tire manufacturers, no but it is his car and he modded it the way he wanted to. Is it smart......... as you read the thread, you will see the varying opinions.

So in short 235, 245 and 255 widths will fit an 8.0" wide rim. I've had personal experience with all three. Would I go to a 265 width, probably not.
To the OP just make sure you use the tire calculator with the profiles in mind to keep the overall dims within range of the OEM set up
and you probably wore out the center of the tire faster too




as far as fitting a wider tire, with a good quality tire machine, you probably could stuff a 305 on a 8.0" rim though, going to act like a ballon, and ride the center tread out REAL FAST, but it will fit though (let alone a narrower contact patch probably too, due to the edges curving up)








and as far as keeping the stock diameter in check
Old 03-06-2011, 10:14 AM
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fries -

Everyone is entitled to their own opinion, as I have alredy pointed out -

Originally Posted by NBP04TL4ME
Ran them for years without a problem and loved them.
Old 03-06-2011, 10:54 AM
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