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Discussion Starter · #1 ·
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.:cool:
 

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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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Discussion Starter · #3 ·
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.
 

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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.
 

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Discussion Starter · #5 ·
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!!!:D 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.
 

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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
 

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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
 

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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?
 

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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....

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
 

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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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