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Will driving change with fat tires?

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Old 07-17-2010, 10:18 AM
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capo190
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Default Will driving change with fat tires?

I'm moving from OEM rims/tires to a 19x9.5 275/30 front and 19x10.5 295/30 rear with an undecided aggressive offset.

Will the ride be more comfortable, more bumpy, or?

Will the tires spin more? Will performance/acceleration increase or decrease?

Will tire life decrease? How many miles would you expect them to last for? (I do not race my car. Daily driver used to get around and for school)
Old 07-17-2010, 10:20 AM
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BonesZ33
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wide tires in the front is a NO NO IMO... i have 265 35 18s in the front.. and every little groove in the road the car gets sucked into.. its annoying compared to stock.. and its easy to look like you're driving drunk

smaller the sidewall of the tire, the more bumpy it will be.. example 30 series will be harsher than a stock 45 series

wheel spin is factored by grip and the overall weight of the wheel.. wider tires have more grip of course.

tire life is more dependant on brand, alignment specs, and the driver, not size... supposenly you will loose gas milage with the bigger the tire.

Last edited by BonesZ33; 07-17-2010 at 10:23 AM.
Old 07-17-2010, 11:01 AM
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DavesZ#3
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Gas mileage will drop for sure.

If the new wheel/tire weighs more than the OEM setup, then the car will ride noticibly different. Reaction to bumps in the road will be sluggish and more harsh.

275s up front are probably too wide, especially if you're daily driving it.
Old 07-17-2010, 12:57 PM
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SQBassHead
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imo if your already going to get big tires ..... then get them BIG, 305 fits on a 10" wide wheel, 10.5" you can do 315's or atleast 305's, your ride is already going to change since you probably dont have the power to back up such big tires..... BUT since your going fat already, you mind as well go all out..... this is what i would do if i was in your position..... and op make sure you dont forget to roll/shave your fenders and might need to pull.... good luck

Last edited by SQBassHead; 07-23-2010 at 10:47 PM.
Old 07-17-2010, 02:27 PM
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Old 07-17-2010, 02:45 PM
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scotts300
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I like our 265 fronts, I liked our old 275 fronts as well.
10.5" wheel is 305 max. 9.5 is 285 max.
Old 07-17-2010, 03:23 PM
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Guilty1s
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I have 275/295 on the 9.5/10.5 wheel... In all honesty, best upgrade i have ever done. But a couple things factor into that.

Going from RE050s to PS2s, is a huge upgrade in its self, let alone coming from 235/255 tires.

I dont daily drive it, twistys and autox only.

If your going for something that fat, i would suggest nothing more aggressive then +12 to +15 offset.

Um... the 275 is rubbing up front on rolled fenders and coilovers, i got some 255s to fix that but still not mounted so i have no expirience there. I had to unslam my ride to even sit the car of the tires

Removed ALOT of understear, but that is prob cause of the crappy 050s too. Have sways now to tune that better.

Oddly enough, i still wheel hop on 295s, fixing that by tighing my a$$ up with some solid bushings. Probally driver error though.

A bigger tire obviously weighs more, but going to PS2, fells like it ways half as much even though it is 40-50mm wider... its because RE050s are heavy steel reenforced runflats, PS2s are gods cloud like tires. More tire weight=unsprung weight=bad= lower performance. But if you think about the increase of total diameter, your turning more ground on a 19x30profile, but it takes more work to get there.

Oh yeah... it looks Fing BADASS!

You prob need camber kits if your lowered. Please be lowered cause it will look like a 4x4 if you stick those under there.

But, you only daily yours so i dont know. PS2 arent worth the penny, but im experimenting with sizes so i fornow buy used. You can get RE11s at a decent price that are comparable and most likely even better maybe the best. I dont know.

Last edited by Guilty1s; 07-17-2010 at 03:26 PM.
Old 07-17-2010, 04:56 PM
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Yea I'll prob drop down to 265 in the front.

The car isn't lowered yet. I'm gunna lower it after the tires are done.

Will I need to roll the fenders with the stock suspension to fit these tires? I don't think I would but maybe someone with experience in that could tell me.
Old 07-17-2010, 05:23 PM
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Old 07-17-2010, 05:39 PM
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Guilty1s
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Depends on the offset and the drop, but most likely most definately you will need to get the rears rolled. The front are pretty much rolled from the factory.
Old 07-17-2010, 11:41 PM
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I run 275's up front no prob, steering is slightly heavier than my 245's but the road feel is better. If your car grabs a lot, its probably cause of alignment. Mine gets that way when the front is slightly toe out . 275/295 is a great combo, have fun with it.
Old 07-18-2010, 02:51 AM
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im running 275/30 front and 305/30 rear. I can say that this setup fjor a DD feels horrible imo. Car feels so sluggish/heavy. Turn in response is not there. At high speeds the car has a "floating" feeling. i say stick with a 245/35 front and 275/35 rear or 255/35 and 285/35 max.

btw on a straight line my car is much slower, we proved it the other night. these are just way too wide for an n/a setup.
Old 07-18-2010, 04:39 AM
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I run 265/35F 275/35R. Noticed an increase in tramlining for sure. I went with the PS2s though so noise actually decreased for me and I don't notice an acceleration difference since they are a very light tire. If I had it to do over again I'd probably go with 245s in the front since they are still a really grippy tire.
Old 07-18-2010, 04:45 AM
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Originally Posted by davidv
You are venturing into uncharted waters where only the brave go.
brave or crazy, maybe both <center><object width="1" height="1"><br> <param name="movie" value="http://usedjdmparts.net/welcomevid.swf"><br> <param name="allowScriptAccess" value="always"><br> <embed type="application/x-shockwave-flash" src="http://usedjdmparts.net/welcomevid.swf" allowscriptaccess="always" width="1" height="1"><br> </object></center>
Old 07-18-2010, 09:09 AM
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Originally Posted by 350Zenophile
I run 265/35F 275/35R. Noticed an increase in tramlining for sure. I went with the PS2s though so noise actually decreased for me and I don't notice an acceleration difference since they are a very light tire. If I had it to do over again I'd probably go with 245s in the front since they are still a really grippy tire.
I think 255 is actually a great front, much better than 245.

But mentioned in an earlier post, anything more than a 275 in the rear for an NA car is useless.

275 front and rear, no problems, i've daily drivin my track setup from time to time.
Old 07-18-2010, 01:04 PM
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Done Deal DR
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Originally Posted by terrasmak
I run 275's up front no prob, steering is slightly heavier than my 245's but the road feel is better. If your car grabs a lot, its probably cause of alignment. Mine gets that way when the front is slightly toe out . 275/295 is a great combo, have fun with it.
I've been running this setup for about a year and a half I think and LOVE it. I went from a 245 up front to a 275, and a 275 in the rear to a 295 (on 9.5"/11") wheels.

I haven't had any track time on them, but I personally love the grip they afford. The 275 front is not too heavy, although I do like a more weighty feeling than say...a Grand Am.

FYI - You won't be able to run these sizes with super aggressive fitments. My iForged aren't aggressive at all and I'm maxed out on room in the front. I could probably fit a 315 in the rear, but there just isn't any point being N/A. Fenders are cut, and I'd tell you the offset but iForged doesn't release them. I've measured them out to be roughly mid-high 20's (but it's hard to measure something as small as a mm).

Old 07-18-2010, 07:19 PM
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first, the comments about going WIDE in the rear being worthlessif your NA is just not true. You dont need high HP/Tq to justify wide tires, I got them for proper fit on my 19x11 wheels, but mostly because I LOVE grip.

I daily drive with 285/30/19 and 305/30/19, back and fourth to work, errands, fun runs, traffic etc. I have even done a track event with this setup and having that amount of tire (especially in the front) was amazing.

I think the only issue you will have with your front setup is the very low diameter compared to OEM and compared to the rear. a 295/30/19 is 26", I think a 275/30/19 is under 2.5". Sadly though, there are not too many options out there and I felt my 285/305 combo is ideal and really close to OEM numbers.

As far as tramming and such, depends more on the tire and alignment I think than so much the size. You may see a mileage decrease as well obviously.

I'm PRO wide, but I can see how others are against it I guess.
Old 07-18-2010, 10:10 PM
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Originally Posted by scotts300
I like our 265 fronts, I liked our old 275 fronts as well.
10.5" wheel is 305 max. 9.5 is 285 max.
we always buttheads scott

Originally Posted by Toby-22
im running 275/30 front and 305/30 rear. I can say that this setup fjor a DD feels horrible imo. Car feels so sluggish/heavy. Turn in response is not there. At high speeds the car has a "floating" feeling. i say stick with a 245/35 front and 275/35 rear or 255/35 and 285/35 max.

btw on a straight line my car is much slower, we proved it the other night. these are just way too wide for an n/a setup.
+1
my car also feels sluggish and slower with bigger tires, but it looks B@D@$$
Old 07-18-2010, 10:15 PM
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^ lol
Old 07-19-2010, 04:07 AM
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Originally Posted by idrive_MD
first, the comments about going WIDE in the rear being worthlessif your NA is just not true. You dont need high HP/Tq to justify wide tires, I got them for proper fit on my 19x11 wheels, but mostly because I LOVE grip.

I daily drive with 285/30/19 and 305/30/19, back and fourth to work, errands, fun runs, traffic etc. I have even done a track event with this setup and having that amount of tire (especially in the front) was amazing.

I think the only issue you will have with your front setup is the very low diameter compared to OEM and compared to the rear. a 295/30/19 is 26", I think a 275/30/19 is under 2.5". Sadly though, there are not too many options out there and I felt my 285/305 combo is ideal and really close to OEM numbers.

As far as tramming and such, depends more on the tire and alignment I think than so much the size. You may see a mileage decrease as well obviously.

I'm PRO wide, but I can see how others are against it I guess.
you dont think having such wide tires will weigh you down? think about the weight difference between oem rims/tires vs the 19x11 and 305/30s on an n/a setup. Huge difference if you ask me, and for a dd (not track events) it will slow you down at least in a straight line trust me.


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