Rear Tire Size

17971 Views 24 Replies 15 Participants Last post by F'n around, Jan 27, 2011

Rickk

Discussion Starter · Dec 6, 2008

Has anyone tried to fit a 275/35/19 on the Factory rear wheel? I have already burned up my PS2's and would like a larger contact patch if at all possible. Let me know.

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Fig

· #2 · Dec 6, 2008

not yet but the michelin 255 is actually close to my dunlop sport maxx 275's I think you can probably get away with it, depending on the manufacturer. Just have to look at the recommended rim width range for the particular tire.
specs on the PS2 suggest that you can run a 275/35/19 on a 9" rim

Tire Size 275/35ZR19/XL
Type of Tire Ultra-High Performance Sport
Rim Width Range 9" - 11"
Section Width on Measuring Rim Width 10.94" on 9.5"
Aspect Ratio 35
Overall Diameter 26.57"
Tread Depth 9.5/32"
Tire Revolutions per Mile 783 at 45mph

Tire Size 255/40ZR19
Type of Tire Ultra-High Performance Sport
Rim Width Range 8.5" - 10"
Section Width on Measuring Rim Width 10.2" on 9"
Aspect Ratio 40
Overall Diameter 27"
Tread Depth 9.5/32"
Tire Revolutions per Mile 769 at 45mph

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Rickk

Discussion Starter · #3 · Dec 6, 2008

Thanks for the emperical data. I knew someone had the info at their quick disposal. Just looking for a little more traction. When new the 255/35/19's are hard to keep from spinning. With less then 5k left on them their not much better than slicks.

Fig

· #4 · Dec 6, 2008

haha, yes the joys of power to the wheels. A side note...maybe use trac and sport more often...then I guess you just wear out the brakes

pads are cheaper than tires I guess. I picked up a set of PS2 rears from costco.com when they were mismarked. I got them for a steal at $100 per installed for the rears....even though I was shopping for snows :lol

I knew I would need them eventually.

Rickk

Discussion Starter · #5 · Dec 6, 2008

I run in sport mode with trac on religiously! Must have something to do with the hard to resist burnout shows I have been known to perform for the kids!!!

WOW @ $100 per I would have bought as many as they had. I have a connection and can procure the stock size PS2 rears mounted,balanced and Nitrogen for $695. I checked and the 275's will be a liitle more. I'll let you what I end up doing and how it works out. Take care.

lowrider

· #6 · Dec 7, 2008

Not to hijack this thread, but anyone know if anything wider than 225s will go on the front? I know that 245/35 will fit a 8" wheel, but is there any interference issues?

Thanks

Lou

JACKISF

· #7 · Dec 7, 2008

i just ordered a 275/30/19 in the ps2 if your going wider you have to get a smaller side wall or it will lok to fat like a drag car

omarab12

· #8 · Mar 2, 2009

but doesn't it affect the speedometer reading if u get smaller side walls? shouldn't you have gone with 275/35/19? And about the front tires, can one fit wider front tires on the same rims?

doublexl

· #9 · Mar 3, 2009

different tire sizes will not effect the speedometer reading because the vehicle speed is picked up via a wheel speed sensor.

lowrider

· #10 · Mar 3, 2009

^^^^Really

Lou

VipAutoSalon

· #11 · Mar 18, 2009

front 245/30-20
rear 295/25-20

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oarngemig

· #12 · Mar 18, 2009

Mr. VIP, Will it be possible for you to post the pics directly on the page and not with the "X"... I can't open the thing. he he..

skatepozer23

· #13 · Mar 19, 2009

doublexl said:
different tire sizes will not effect the speedometer reading because the vehicle speed is picked up via a wheel speed sensor.

Actually different tire sizes will mess up your speedometer.

The amount that the speedo will be off depends on how big of a tire you get.

For example if stock tires are 23 inches tall and you upgrade to a 24 inch tall tire then the speedo will be off by by 9 percent

veerals05

· #14 · Mar 19, 2009 (Edited)

VipAutoSalon said:
front 245/30-20
rear 295/25-20

What are your rim specs and what tires are you using?

20x ???

TinCan

· #15 · May 19, 2009

I'm trying to fit a 285/30/19 invo on 19x9.5 with 35mm offset. Some people say yes and some say no... I may have to roll the fenders if I do need to roll the fenders, whats the best way to do it?

FChampOH

· #16 · May 19, 2009

I'm not recommending this company, but this is the best/safest type of fender roller I have ever used.

http://www.eastwoodco.com/shopping/product/detailmain.jsp?itemType=PRODUCT&RS=1&itemID=6159&keyword=fender%2Clip%2Croller&cm_mmc=undefined

TinCan

· #17 · May 19, 2009

FChampOH said:
I'm not recommending this company, but this is the best/safest type of fender roller I have ever used.

http://www.eastwoodco.com/shopping/product/detailmain.jsp?itemType=PRODUCT&RS=1&itemID=6159&keyword=fender%2Clip%2Croller&cm_mmc=undefined

So do you have one? lol I may use a bat

doublexl

· #18 · May 19, 2009

skatepozer23 said:
Actually different tire sizes will mess up your speedometer.

The amount that the speedo will be off depends on how big of a tire you get.

For example if stock tires are 23 inches tall and you upgrade to a 24 inch tall tire then the speedo will be off by by 9 percent

you are so wrong it hurts.

if the speedo did in fact get its reading from a driveshaft or axel mounted sensor, then YES tiresize would effect the reading. however, i direct you here.....

http://www.lexusf.com/forums/showthread.php?t=460&highlight=is350+gear&page=3 third post from the top. unless dealers are lying to us now....

FChampOH said:
Pat Ross,
It appears that vehicle speed is picked up from wheel speed sensor. During installation, our head tech looked into speedo gears and found none available through parts. Being that the wheel speed sensor does all the work no change was made. Side by side highway comparisons with altered car vs. stock car showed that the speedometer was accurate. We actually drove these cars down the highway side by side and communicated via the bluetooth phone connection! Thanks,

Doug

kthx

aitke12

· #19 · Dec 26, 2010

WOW look at this

Look at this!

6speedonline.com/forums/lexus/186895-lexus-f-one-aggressive-f-d2forged.html

What kind of work is needed for 295's on the rear's? Looks amazing!

Gymkata

· #20 · Dec 26, 2010

aitke12 said:
Look at this!

6speedonline.com/forums/lexus/186895-lexus-f-one-aggressive-f-d2forged.html

What kind of work is needed for 295's on the rear's? Looks amazing!

No "work" is necessary to fit 295mm rear tires, only the right backspacing on the wheel.

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