Tire weights?

[getfuzzd]

We all know that the stock rims & tires(GT) weigh somewhere around 35-38 pounds. In an attempt to find rims and tires that are as light as possible that I can afford, I went searching today. I checked most major manufactures web sites today and only one that had a listing of how much their tires weighed besides all the other specifications. I believe it was Toyo.

So does any one know of a list like that of http://wheelweights.net
for tires.

I think I could drop an equivalent weight of about 30 pounds of dead weight with just rims alone for what I'm willing to spend on them.
Of course I'm using the general rule that for every one pound saved on a given rim choice = 6 pounds of dead weight.
Stock rim = 19 LBS
Rota Subzero 16"=14 LBS 5x6=30

Each pound you lose from the tire choice is supposedly equivalent to roughly an eight pound loss of dead weight.

If you change the flywheel as well it equals comes to about 200 to 250 Pounds effective weight savings as well. found this on a ford focus fourm where they did dyno tests, and the physics to back it up


I'm all for more effective acceleration relating to the loss of rotational mass.
It means I go faster, handle better,and my favorite; stop quicker.



Edit: Found one so far after another hr of searching....
http://www.miata.net/faq/tire_weights.html

[o2coolchris]

found this in the archives, it should help alittle...
http://www.elantraxd.com/yabbse/index.php?board=5;action=display;threadid=4716

[BlackElantraGT]

That seems like some fuzzy math to me. You're not putting into consideration that the rims you are comparing has a 1" difference. If you're concerned about wheel weight, I would focus that attention on the rims. As far as tires, you should get whatever tires will suit your need. Your life rides and depends on your tires and I wouldn't sacrifice tire quality just to save a few pounds per tire.

Not all manufacturers list their tire weights, but I know that Yokohama lists them.

[getfuzzd]

found this in the archives, it should help alittle...
http://www.elantraxd.com/yabbse/index.php?board=5;action=display;threadid=4716


I forgot about the archive.....

That seems like some fuzzy math to me. You're not putting into consideration that the rims you are comparing has a 1" difference. If you're concerned about wheel weight, I would focus that attention on the rims. As far as tires, you should get whatever tires will suit your need. Your life rides and depends on your tires and I wouldn't sacrifice tire quality just to save a few pounds per tire.

Not all manufacturers list their tire weights, but I know that Yokohama lists them.

http://www.elantraxd.com/forums/showthread.php?t=2153&page=2&pp=20&highlight=wheel+weight

I never said I was going to compromise safety in my tire choice....It means I go faster, handle better,and my favorite; stop quicker.

[SWortham]

Of course I'm using the general rule that for every one pound saved on the rim = 6 pounds of dead weight.
Actually this rule of thumb has been mis-interpreted by myself and many others. It originally came from a Sport Compact Car Magazine article. The actual rule of thumb is that 1 pound saved on all 4 wheels = 6 pounds of dead weight. And 1 pound saved on all 4 tires = 8 pounds of dead weight.

This rule is reasonably accurate when comparing tires & wheels of the same size but begins to become quite inaccurate when dealing with different sizes. I spoke to an Aerospace Engineer about it and he set me straight, haha. I know enough about it now to realize that the rule of thumb is a gross simplification in most cases.

[getfuzzd]

opps
....And i found/read the SCC article too....

[GTSTISL]

yea, dont worry about a few pounds when considering tires. try and save all the weight on rims. id say go with a 16" rim. as far as what exact rim, it depends on your liking, but theres lots of lightweight rims out there. just look around. i prefer the rota slipstreams.

[getfuzzd]

^^but why try to save weight on the rim only to off set it with a heavier tire than stock...

Another good Link
http://www.carcraft.com/projectbuild/116_9905_wheel/

[GTSTISL]

because you will not offset it. comparing those tires,most seemed to be in the 18-19 pound range. so choose something around there. remember, u said u wanted better handling, acceleration, and braking. better tires will give you all those, so dont worry about that. just dont go buyin a super heavy tire.

[SWortham]

Oh, and by the way, the Toyo T1-S is one of the lightest summer tires out there.

[BlackElantraGT]

I have lightweight wheels myself and when it comes to tires, I don't purchase the tires because of the weight. There are many things that influences people on the purchase of tires such as performance, treadwear, ride quality, noise, etc... but rarely will the weight be a factor. Just get the tires that perform the way you want it to.

When I first got my wheels installed, I could feel a slight difference in the acceleration but the feeling wasn't anything shocking or surprising, compared to the way my car handled after the install of the Tib sway bar.

In your everyday driving, you won't notice too much of a difference. If you were to take your car to the track/drag strip, only then would you see a difference in your time slips. If you really wanted better acceleration, your money would be better spent on a turbo.

[SWortham]

^ Word. Weight savings at the tires & wheels is more important if you're racing in which case every pound counts. But it can become an expensive obsession buying $400 forged wheels and spending $150 per tire just to save weight.

This would also be more important if our misconceptions about the rule of thumb were true. But essentially we both thought that the effects of wheel weight were 4X greater than they actually are.

But it's still worth it to look around. There are plenty of less expensive wheels out there which are reasonably lightweight.

Also, you don't have to think that you need 16" wheels just for weight savings. 17" wheels have their handling advantages with this car. If you were to get some 17x7" wheels at 19 pounds or less and use 215/45-17 tires you'd have a nice setup. 16" wheels have their advantages with drivability.

[kylemorg]

FYI -- http://www.elantraxd.com/forums/showthread.php?t=3070&highlight=39.5

"For reference, though, an ADR Sokudo 8 17"X7" wheel with a 205/40R17 Kumho Ecsta 711 tire weighs 39.5 lb."