Tire foam turns to dust "part 2" - Page 2 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-26-2006, 05:08 PM   #11
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Originally Posted by MustGoFaster
I thought that the T-DI wheels were a different size than the 2.2 inch B4 wheels. Are they not smaller?
No, they are the same size.
Actually I have a set of Dark-I tires and foams on a set of Proline B4 wheels. They fit better than the Proline tires do

I do not care for the tires, they are too hard. But i will definately try the Tamiya foams with Proline tires next time around. They are more firm than the stock foams. I figure they should be about the same as the 2 stage foam once you get the 2 stage squished and compressed into the tire.
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Old 09-26-2006, 07:40 PM   #12
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I was just looking at my Bow-ties and noticed that they seem to be getting softer as well.. What to do...
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Old 05-23-2007, 06:32 PM   #13
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anyone ever figure out how to fix this problem?

maybe i should have asked this before i went ahead and glued a set on.
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Old 05-23-2007, 06:54 PM   #14
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Found this post on rctech.net. Not sure it solves the problem. Any experience or thoughts?


I'll post a little trick that we (AE team) did at the Florida Winter Champs that used to be held in Tampa Florida, USA....the year was 97' I think.

Anywayz, M3 Holeshots had just come out, and were the tire of choice on the huge high speed orange clay track. Although the tires were designed with sidewall support ribs, the tire still was so soft that in modified the tire wandered all over the place. This actually seemed to give the cars too much grip in sidebite, the cars would push too much (the track turned blue groove).

The guys had figured out a way to mount the Holeshots to keep them from "squishing" all over the wheel. All you need is some double sided indoor/outdoor carpet tape (it's very strong..and thin.)

You cut the foams' inside corners so they didn't get in the way of the glueing bead. Then you take some of the carpet tape and wrap it around the inside of the wheel (where the foam would sit) covering the entire width of the wheel (between the beads where the tire sits, on each side of the wheel.) Now take your tire foams of choice, and carefully stretch them onto the rim and get them as true as possible all the way around evenly on the wheel and press the foam onto the tape so it holds the foam in place. (you may have to peel up the foam in spots and re-position it to get it straight....so don't press the foam down onto the tape until it's completely straight.)

To mount the tire onto the foam/rim, turn the tire inside out first. Then take the correct bead and place it onto the recess of a bead in the rim. (be sure to double check the direction you have your tire facing when you start to mount it to the wheel because everything is kind of backwards as the tire is inside out! )

When you get a bead of the tire seated into the rim while the tire is still inside out, then stretch the tire over the top of the rest of the foam/rim (as if you were turning it right side out again) being careful not to disturb the foam's position, and place the other bead of the tire into the other bead of the rim. Now glue as you normally would being sure to "pack" the foam with your hands all the way around the tire to be sure it conforms to the tire now that it's on.

I made it sound like a tedious task, but it's not near as complicated as I make it sound. It's actually not hard at all. What this obviously does though is keeps the foam planted in the center of the wheel as much as possible, helping support the tire from distorting during hard cornering.....this will give the car better corner speed and better acelleration as the tire will keep it's more natural form during the run.

(Some people have also used the Kinwald foam glue to glue the foams to the rims also instead of using carpet tape, so this works as well.)
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Old 05-24-2007, 01:49 PM   #15
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I tried the boiling trick to reuse some rims. it worked really well. 40min submerged under boiling water and then with protective waterproof gloves, I snapped the tires off the rims without any trouble.

The foams and tires are now dry.

I am now able to use the foams again. I think that the older foams will work really well.

I also noticed that one of the foams that was being used in a very firm set of Big Shots was actually for Truck. I have tried these in my new bow ties. I am resorted to staying away from the stock bow tie foams. I have some that are already dead as previously mentioned

the boiling trick was much easier than I thought. you should try it. it does discolour white rims to a duller finish though. Some die in the water might be a neat idea!!
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Old 06-16-2007, 06:37 PM   #16
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I am happy to report that the new 'method' of preserving foams seems to be working. I've had over 12 full runs/races on the same set of bowties, and they still close to feeling brand new...

Basically I used the plastic that the tires came in - cut a strip of the bag the same width of the foam and lined it inside the tire between the foam and the tire. Thisseems to reduce the friction drastically... now I hope that the foams actually last as long as the tires. We'll see what happens over the next 10 runs or so...

But in the past, after just ONE day of racing, the foams would already being feeling weak...
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Old 07-15-2007, 08:24 PM   #17
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Tried the strip of plastic trick today but after just one run felt a hard spot in both tires...turns out the plastic bunched up. Crazy wear over the hard spots on a brand new set
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Old 07-15-2007, 08:56 PM   #18
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i'm hoping the trinity bomb one inserts i just bought help... #TK1512 sad i have to pay another 5 bucks but its worth a shot i suppose
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Old 07-15-2007, 10:02 PM   #19
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this is what im talking about
ok ya i may be running to much hp but man i dont want to run a stock motor in 4wd offroad.
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Old 07-15-2007, 10:26 PM   #20
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sounds like hpis first run of Baja foams, i had one tire explode in my face going wot foam dust was all over me. the other tire i opened to see how they were and dust again.

i didn't read everything but could you duck tape or parcal tape the foam? i know this help the hpis untill they updated to the newer foams.
what's nitro

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