hey guys, i was juss wondering, but how wide of a wheel can an ITR go? x7.5? maybe x8? preferably no roll and pull fenders, but if its done, why not! if u guys can help, thank you


Modified by BSeRiousS at 10:14 PM 11/24/2005

 

15x8's fit but you cant be that low

 

how about 16x8?

 

19x7's can fit...but why would you want to?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 255.255.255.255 &raquo;</TD></TR><TR><TD CLASS="quote">19x7's can fit...but why would you want to?</TD></TR></TABLE>

Widest not tallest.

 

Offset counts for a lot as well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BSeRiousS &raquo;</TD></TR><TR><TD CLASS="quote">hey guys, i was juss wondering, but how wide of a wheel can an ITR go? x7.5? maybe x8? preferably no roll and pull fenders, but if its done, why not!</TD></TR></TABLE>

15x8 +42 has worked in a couple of applications of which I am aware.

You cannot lower the car too much with this kind of setup, and you must have a fairly stiff suspension if you're tracking the car.

 

15x10.5

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">15x10.5
</TD></TR></TABLE>
I guess the original poster should have mentioned that he fully expected to need tyres on the wheels.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by George Knighton &raquo;</TD></TR><TR><TD CLASS="quote">I guess the original poster should have mentioned that he fully expected to need tyres on the wheels.</TD></TR></TABLE>

285/35-15.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">15x10.5
</TD></TR></TABLE>

Please elaborate. I am curious as to what/where/how those were run.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackbeautyITR &raquo;</TD></TR><TR><TD CLASS="quote">

Please elaborate. I am curious as to what/where/how those were run. </TD></TR></TABLE>

My guess would be the drag strip?

 

I'm just having a little fun on Black Friday. Go into the Tire Rack website and you'll see that there's no such thing as a 285/35-15 tire available. Hope it was good for a laugh.

Seriously, there's a fallacy in the thinking of those who are looking for wider wheels and tires. For 99.9 percent of us, there is NO advantage to doing so. Here's why. The reason is that the width of tires is relatively insignificant when it comes to performance, compared with other factors. Remember, the width of the tires has nothing to do with how much contact the rubber makes with the road. If you inflate your tires to 33 psi on a vehicle that weighs 2640 pounds, the area that the tires come into contact with the road will be 80 square inches, regardless of whether your tires are 285/35-18 steamrollers or skinny 165/65-15's.

Far greater performance differences result from the design of the tire - the compound, tread pattern, etc - than from its width, because that determines how much grip you will get from those 80 square inches. Stickier tires make a much bigger difference. A 205 treadwidth Kumho MX will grip better than a 225 treadwidth Yokohama ES100. A 205 treadwidth Goodyear F1 GS-D3 will grip better than a 225 treadwidth Kumho MX. A 205 treadwidth Falken RT-615 will grip better than a 225 treadwidth Goodyear F1 GS-D3. And a 205 treadwidth Toyo RA-1 will grip better than a 225 treadwidth Falken RT-615. So if you're looking for better performance from your wheels and tires, concentrate on getting STICKIER tires rather than WIDER tires.

Now, if you're already running R compound track tires, and you've got a lot of track experience, and you're looking to knock a tenth of a second off your lap times, then sure, you'll want to be thinking about a wider treadwidth. But for the vast majority of us, you can improve your car's performance by getting a stickier model of tire, much more than will result by getting a wider tire.

Unless you're doing it for the bling bling, in which case keep looking for those 285/35-15 steamrollers (or maybe I can interest you in a 335/15-19 on dubs y0).

 

Could you elaborate more on this? I've heard it before, but I can't picture it!

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy &raquo;</TD></TR><TR><TD CLASS="quote">

Seriously, there's a fallacy in the thinking of those who are looking for wider wheels and tires. For 99.9 percent of us, there is NO advantage to doing so. Here's why. The reason is that the width of tires is relatively insignificant when it comes to performance, compared with other factors. Remember, the width of the tires has nothing to do with how much contact the rubber makes with the road. If you inflate your tires to 33 psi on a vehicle that weighs 2640 pounds, the area that the tires come into contact with the road will be 80 square inches, regardless of whether your tires are 285/35-18 steamrollers or skinny 165/65-15's.
.</TD></TR></TABLE>

 

i have 205/r16

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kicker773 &raquo;</TD></TR><TR><TD CLASS="quote">how about 16x8?</TD></TR></TABLE> with a 42 offset?? anyone

 

I have 16"x8" spoon sports SW388 wheels , I don`t know the offset because they came with the car when I bought it , I have Toyo Proxes T1R 205/50r16 tires mounted on them and the car is lowerd on spoon sports progresive springs.

On the rear they rub a little if there are people in the rear seats but as long as I am with 1 passenger everything is fine

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Marlon88 &raquo;</TD></TR><TR><TD CLASS="quote">I have 16"x8" spoon sports SW388 wheels , I don`t know the offset because they came with the car when I bought it , I have Toyo Proxes T1R 205/50r16 tires mounted on them and the car is lowerd on spoon sports progresive springs.

On the rear they rub a little if there are people in the rear seats but as long as I am with 1 passenger everything is fine </TD></TR></TABLE>

Are you sure they're not 16x7?

The Spoon 16x8 wheels were meant for the rear of S2000's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by erikiksaz1 &raquo;</TD></TR><TR><TD CLASS="quote">Could you elaborate more on this? I've heard it before, but I can't picture it!</TD></TR></TABLE>

Just think about it.

We measure tire pressure in lbs psi.

Pounds Per Square Inch

So... if your tires are inflated to 30lbs psi then each corner is putting 30 of every pounds that it is supporting on 1 square inch.

If the car weighs 2000lbs and you have perfect 50/50 weight distribution along both axis, then every corner is bearing 500lbs (2000/4).

Then if you have 30lbs of air in that corner, your contact patch is 16.66666 square inches. (500/30).

So, as you can see, in theory, the formula to find contact patch area doesn't have anything at all to do with tire size. You can be a smart *** and cite unreasonable examples that will make the previous argument fall apart, but they would have no real world value at all.

Contact patch are in inches=weight the tire is supporting in pounds divided by the pressure inside the tire, in pounds per square inch.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dr Pooface &raquo;</TD></TR><TR><TD CLASS="quote">Contact patch are in inches=weight the tire is supporting in pounds divided by the pressure inside the tire, in pounds per square inch. </TD></TR></TABLE>

Assuming a soft/flexible tire, yes. A stiff sidewall "might" deviate this pattern just a wee little bit, but I've never measured or tried to measure that effect. I suspect it's negligible.

One thing that always pissed me off, is that a wider tire *does* help with cornering g's. Suspension and camber also matter. The concepts "seem" to make sense but I always liked the nice simple Ff=uFn, Force of Friction equals the normal force times the coefficient of friction. Why anything but the tire and road composition matters in that equation is beyond me.

p.s. I'll see your 15x10.5 and raise you 1.5 inches.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Reid &raquo;</TD></TR><TR><TD CLASS="quote">

Are you sure they're not 16x7?

The Spoon 16x8 wheels were meant for the rear of S2000's.</TD></TR></TABLE>

Incorrectly measuring the wheel width, (from lip to lip, wrong) instead of from where the tire bead sits on each side could yeild a false result. Possibly what happened?

 

i'm running 17x7.5 +38 on my car. with 205/40/17s and a mild drop there's only rubbing under severe bumps or hard cornering. with 215/40/17's there is rubbing on just about every bump. but they clear after rolling the fenders.

 

anyone have pics of 7.5" or 8" wide rims on their integras?

 

17x7.5 TE37s +42
17x7.5 SSRComps +42

No rubbage.

 

These are 17x8 +40 Watanabe. I use these on my RSX-S but I just slapped them on the ITR to see what it looks like on there but I have not driven with them on yet. It appears they wont rub but its damm close.