Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 10-24-2014, 12:03 PM   #21 (permalink)
eco....something or other
 
Join Date: Jul 2009
Location: Colfax, WI
Posts: 719

wood hauler - '91 Ford F-250
Team Pontiac
90 day: 18.97 mpg (US)

Rav - '06 Toyota Rav4 Base
90 day: 26.52 mpg (US)
Thanks: 39
Thanked 61 Times in 46 Posts
I would rather have new tires than regrinding them.

__________________



1991 F-250:
4.9L, Mazda 5 speed, 4.10 10.25" rear
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 10-24-2014, 07:51 PM   #22 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: USA
Posts: 2,643
Thanks: 1,502
Thanked 279 Times in 229 Posts
My tires had some flat spots from sitting and guessing locking up tires and other horsing around from previous owner. The shop said its something they do, so who am I to tell em their job?
  Reply With Quote
Old 10-24-2014, 09:47 PM   #23 (permalink)
Changfa diesel + Suzuki
 
changzuki's Avatar
 
Join Date: Jul 2012
Location: Northern, NY
Posts: 527

Centurion - '74 FIAT X1/9 Centurion Full Race DNA
Last 3: 143.5 mpg (US)
Thanks: 160
Thanked 463 Times in 235 Posts
Quote:
Originally Posted by chumly View Post
Are there any drawbacks to using bb's ?

.
~CrazyJerry
  Reply With Quote
The Following 2 Users Say Thank You to changzuki For This Useful Post:
Daschicken (01-11-2016), Xist (11-07-2014)
Old 10-24-2014, 09:54 PM   #24 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: USA
Posts: 2,643
Thanks: 1,502
Thanked 279 Times in 229 Posts
I guess if you have a blow out the safest place is being inside the vehicle?

Ill never forget the day this guy with a bad cvc joint turned his wheel too far and the balls fell out of the joint on to the street.
  Reply With Quote
Old 10-24-2014, 11:21 PM   #25 (permalink)
Master EcoModder
 
sendler's Avatar
 
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
Thanks: 326
Thanked 1,315 Times in 968 Posts
I use Dynabeads in my motorcycle tires. Expensive but works good. I might try bb's next time. The Dynabeads site says that balancing beads don't work as well with wide, low profile car tires and work much better in round profile motorcycle tires since they are trying to pile up on each other in the center of the tire.
  Reply With Quote
Old 10-25-2014, 03:40 AM   #26 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,186

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 35.79 mpg (US)
Thanks: 7,217
Thanked 2,217 Times in 1,708 Posts
Quote:
Originally Posted by Cobb View Post
Ill never forget the day this guy with a bad cvc joint turned his wheel too far and the balls fell out of the joint on to the street.
When I was in high school, a classmate said he made a turn in a neighborhood, the wheel came off, and he ended up in some guy's yard. The homeowner was standing there and said something like "You look like you could use some help there."

Yesterday I went somewhere to get help on my résumé and a fellow walked in and told some story about a wheel flying off of a car on the freeway and rolling up the exit ramp. They knew they had a problem, so they were driving to the mechanic.

Then he told them he was looking for help starting and running a bakery and they had him talk to me.

I never finished my résumé. I never filled out an application. I just talked to him and he felt that I could follow directions.
  Reply With Quote
Old 10-25-2014, 09:49 PM   #27 (permalink)
ncs
EcoModding Lurker
 
Join Date: Jul 2008
Location: Idaho
Posts: 45

RockMagnet - '04 Subaru Impreza wagon WRX
90 day: 26.16 mpg (US)
Thanks: 0
Thanked 8 Times in 7 Posts
I've seen bbs, buckshot, airsoft bbs, golfballs, and get this, anti-freeze, used to balance tires. There are even sand filled balancing rings available that go between the wheel and brake. I'm using off-road dynabeads which are too big to go through, or get stuck in the valve stem. At one time I had a wheel with half the rim covered in lead trying to balance a 37" swamper. The dynabeads took care of that problem.

Tire shaving is pretty interesting. It would really help in some cases, like really big tires which aren't very round from the factory. Most shops don't have the equipment though.
  Reply With Quote
Old 10-25-2014, 11:16 PM   #28 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: USA
Posts: 2,643
Thanks: 1,502
Thanked 279 Times in 229 Posts
In my case the service was free. They said they already balanced the tires and the truck was supercharged and parked for a few years, so it seemed plausible the tires had flat spots.

When I got wheels and tires from tirerack, the website said when they mount them they match the rim and tire run out so they are pretty much dead on to eliminate the wobble between the 2 as the tire can be mounted off center.

When I use to use a wheelchair I would take the time to center the tire on the rim before inflating it to further ensure a smooth ride.
  Reply With Quote
Old 11-03-2014, 10:09 AM   #29 (permalink)
Master EcoModder
 
Join Date: Jan 2011
Location: na
Posts: 1,025
Thanks: 277
Thanked 218 Times in 185 Posts
Replaced the ecopia's on the from of my cobalt yesterday, wore great less than 1/32 tread left any were They have some ribs on the inside, Nokian WRG2 I installed nice and smoothing on the inside, no shaking at all in first 80 miles. I did buy a $5 kitchen scale so I could weigh how much beads I installed vs just guessing before. Went with 4 oz and already had 1.5 oz of lead stick on opposite the valve stem/tpms.

MPG definitely down this morning with 44 psi, but safety level way up. I could break them loose on wet pavement in 3rd gear.
  Reply With Quote
Old 11-07-2014, 04:16 PM   #30 (permalink)
EcoModding Lurker
 
Join Date: Mar 2014
Location: okc
Posts: 49
Thanks: 22
Thanked 15 Times in 12 Posts
i just wanted to add my .02 to this thread

for dynamics i chose to do this as a demonstration project.

i had two large tops both decently balanced, and one had bb's and a hole to stick a large bolt. between both of them the one with out the dynamic balancing media couldnt even spin right it was so out of balance, while the one with dynamic media was able to spin PERFECTLY.

this is the only way to get as close to perfect balance as possible for the life of the tire. when mass like mud or snow or other junk get on your tires this will automatically compensate. centrifugal forces are equal at fixed distances around the axis of rotation. every thing in a perfect circle around the axis of rotation sees the exact same acceleration since its speed and distance from the origin is the same. this is how once spun up the media distributes itself to perfectly balance, and when there is a weight added that mass adds extra pull on the rotating body in a vector parallel from it to the origin outwards. this causes the axis to wobble, and applying newtons 3rd law we see that the extra pull on the axis in that vector causes the dynamic media to find the exact opposite vector and collect.

if you had a bucket of water and you pull it to the right, all the water goes to the left. exact same thing here but were spinning around too...

this is exactly how everyones washing machine works on spin cycle, mass will equally distribute based on applied forces if you let it, but if your clothes are clumped up it will dance lol

you dont need bb's you just need mass. all the cheap guys on pirate4x4 use antifreeze in their massive tires that they want to hit the street with but cant get anyone to balance or cant add enough weight. you can use slime as mass, and get some puncture resistance aswell. the antifreeze generally will not affect rubber or most wheel alloys.



so i personally think this is a great idea and everyone could benefit from a little dynamic media in their tires. this is how im going to get my 200ish lb run flats to 80mph+


also the speed needed to get the media spinning is higher than the lower thresh hold where they fall, most of the time you can feel slight vibration until 10mph but after it stops you wont feel it until you slow down to 5mph. just run the math on your tire size and speed, acceleration is equal to v^2 / R just plug in 9.8 and youll see anything above 10mph except on the most massive tires will keep the media perfectly distributed. you also need more mass than regular balancing for this to work.


Last edited by dustyfirewalker; 11-07-2014 at 04:31 PM..
  Reply With Quote
The Following 2 Users Say Thank You to dustyfirewalker For This Useful Post:
oldtamiyaphile (11-07-2014), redpoint5 (05-10-2016)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com