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Post by Deleted on Apr 28, 2020 19:18:04 GMT -7
OK, good test.
maybe try a quick boost to high RPM and then quickly off.
simulate the time it takes to make a pass.
a second or two, ?
if they can stay on for a pass, they might last on the rim for 4 or 5 passes.
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Post by pete on Apr 28, 2020 19:25:49 GMT -7
You can see how the tire grows with RPM. Watch at the very first increase you will see the tire begin loosen. Another interesting thing about the tire seal fail is the vibration that comes with it. Its violent. Something Im looking for is balance when held in your hand. If you have a tire going south, you can feel it.
No problem Gale, thank you for sharing this, I do think it is working, I will continue to work the process.
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Post by Eagle Racing on Apr 29, 2020 4:47:40 GMT -7
Interesting test, I have a question. Wouldn't this work better on a double flange wheel?
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Post by GTS on Apr 29, 2020 5:36:18 GMT -7
Interesting test, I have a question. Wouldn't this work better on a double flange wheel? Yes, I think so, IMO anyway. My efforts have been pretty much geared toward having a narrow rim and narrow tire of a certain diameter. I have not been aware of any double flanged rims that meet that criteria so have been trying to make do with known availability and hoping that whatever info was shared would be helpful to others with their endeavors. |
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Post by Eagle Racing on Apr 29, 2020 7:29:46 GMT -7
Interesting test, I have a question. Wouldn't this work better on a double flange wheel? Yes, I think so, IMO anyway. My efforts have been pretty much geared toward having a narrow rim and narrow tire of a certain diameter. I have not been aware of any double flanged rims that meet that criteria so have been trying to make do with known availability and hoping that whatever info was shared would be helpful to others with their endeavors. What do you need, pretty sure I can make it. I have some listed on my web page. However if you need a special size let me know. |
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Post by GTS on Apr 29, 2020 8:05:42 GMT -7
Yes, I think so, IMO anyway. My efforts have been pretty much geared toward having a narrow rim and narrow tire of a certain diameter. I have not been aware of any double flanged rims that meet that criteria so have been trying to make do with known availability and hoping that whatever info was shared would be helpful to others with their endeavors. What do you need, pretty sure I can make it. I have some listed on my web page. However if you need a special size let me know. Got re-linked to your newer web page  . That .300 diameter delrin narrow looks like a winner, gonna have to order some. What is the width of those in between the flanges and outside width? Thanks, Gale
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Post by dave632 on Apr 29, 2020 8:59:47 GMT -7
Thanks for sharing the info Gale.
I run Unlimiteds where the motor is running at over 100,000 rpm and the tires are running over 50,000 rpm.
It is tough to find something to test those wheel speeds on.
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Post by pete on Apr 29, 2020 18:19:22 GMT -7
Back at it tonight after a 24 set period. Im having excellent results. No fails under full power tests. When sliding the tire on it is hard not to wipe the rim surface clean, pushing the sealant out towards the edge or just completely clean from the rim flat. I took my time making sure I didn't remove to much glue. I to placed some RTV on a tire to be sure was getting a good adhesion, oh it sticks. Im sure I was removing the glue in prior attempts, I going with it.
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Post by Deleted on Apr 29, 2020 18:28:56 GMT -7
good news
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Post by Eagle Racing on Apr 30, 2020 4:04:15 GMT -7
What do you need, pretty sure I can make it. I have some listed on my web page. However if you need a special size let me know. Got re-linked to your newer web page . That .300 diameter delrin narrow looks like a winner, gonna have to order some. What is the width of those in between the flanges and outside width? Thanks, Gale
Between flanges .141" and outside width .194" I have made a few more narrow. |
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Post by GTS on Apr 30, 2020 5:15:33 GMT -7
Got re-linked to your newer web page . That .300 diameter delrin narrow looks like a winner, gonna have to order some. What is the width of those in between the flanges and outside width? Thanks, Gale
Between flanges .141" and outside width .194" I have made a few more narrow. Thanks Robert, that size sounds great! I'll get an order together today and send it via your web site. Thanks again!
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Post by Deleted on Apr 30, 2020 17:25:06 GMT -7
so ?
Gale and Pete have had some success gluing slip on silicone tires to wheels! ?
I am still waiting for some of those products to arrive.
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Post by AJR on Apr 30, 2020 17:50:36 GMT -7
Back at it tonight after a 24 set period. Im having excellent results. No fails under full power tests. When sliding the tire on it is hard not to wipe the rim surface clean, pushing the sealant out towards the edge or just completely clean from the rim flat. I took my time making sure I didn't remove to much glue. I to placed some RTV on a tire to be sure was getting a good adhesion, oh it sticks. Im sure I was removing the glue in prior attempts, I going with it. Pete what type of RTV are you using now? |
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Post by dave632 on Apr 30, 2020 18:13:37 GMT -7
RPM calculator: This showed that one of our little monsters running a .5" tire with a 8/22 gear @ 30 MPH would be running: 55,461.45 motor RPM. Wheel rpm figuring a 2.75 ratio = 20,167. wallaceracing.com/calc-gear-tire-rpm-mph.php |
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Post by pete on May 1, 2020 10:22:21 GMT -7
JJ
JB Weld RTV. I like it better from the CA because it cleans easy. The cars will be here for another ten days so they will be checked a few times more before the race.
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. That .300 diameter delrin narrow looks like a winner, gonna have to order some. What is the width of those in between the flanges and outside width?
