RCCrawler Forums

JasonF88 · 03-31-2009, 08:28 PM

i saw a vid where a guy drilled a small hole in his wheel and stuck it in the freezer and took it out then screwed a screw in the hole with a o-ring then unthawed it with a hair drier. i'm not sure if there was any foams but is this a good idea?

Rockcrawler · 03-31-2009, 08:34 PM

What are you trying to accomplish and what wheels?

rburda · 03-31-2009, 08:35 PM

This is not the best idea for rock crawling. With air in the tires you will get a bouncy effect when going over rock. You will find most people drill holes in their wheels(if not already present) to let air escape so it will give it a more wrap around effect on the rocks.

JasonF88 · 03-31-2009, 08:38 PM

thats what i was aiming for but also was considering the bouncing as a factor with inflatable tires. how big of a hole should i drill in each rim? 1/8"?

Rockcrawler · 03-31-2009, 08:41 PM

You dont want inflatable tires in a comp rig.

1/8" is what my air holes are. Depending on how dense the foam is, you might need 2 of them.

JasonF88 · 03-31-2009, 09:01 PM

i have stock foams so what should i do?

ultimate_monkey · 03-31-2009, 09:14 PM

id drill two, 1/8" holes completly oposite of each other

JasonF88 · 03-31-2009, 09:19 PM

ok thanks i appreciate the help.

Squamch · 04-01-2009, 07:56 AM

I have one hole, and star cut stock foams, air flow is just fine in and out, with 1/8" hole, I doubt you'd need any more than that. I drilled mine with a regular cordless drill too, there's talk of that not workin, but unless you're some kinda drunken three fingered air thief you should be able to pull it off without drilling your leg/hand/whatever you use to hold the wheel steady.

mac67 · 04-01-2009, 03:17 PM

Did they fill the tire with water first then freeze it? If you did that then you could still have a soft tire with some serious weight.

badnuz · 04-01-2009, 05:02 PM

hae i saw that video too i was going to do it but my tire has got a rip in it.it looks like a good idea for more hight clearance

ultimate_monkey · 04-01-2009, 05:09 PM

ok lets play this out.
cold air is denser then warm / hot air, by putting the tire in the freezer it "fills" with dense air, then when you plug the hole, as it warms up it will expand and "fill" the tire up, for crawling this is a bad idea, it will make the tire very firm (wont wrap around rocks) will be very bouncy, make your truck harder to controll.

filling it with water then freezing is even dumber, it will make the tire rock hard, will have 0 give to it, and its just goin to melt any way.

how ever some 1:1 comp buggies do put water in their tires to put alot of weight low down, this may work in the RC world, how ever you wold have to run no foams. try it out, let us know

JasonF88 · 04-01-2009, 06:29 PM

in the video the guy put the tire in the freezer for 10 - 15 minutes letting it fill with the freezing air and when he pulled the tire out of the freezer he hurried up and put in the screw with the o-ring so it didn't leak then he unthawed it with a hair dryer. maybe someone has a spare set of wheels and tires to try this and confirm how it works. if i were to guess i'd say he didn't use foams though.

ultimate_monkey · 04-01-2009, 07:32 PM

iv seen the video and know what your talking about. but its just plain well a bad idea for crawling aplications... if you were building a go fast sang buggy / dirt track racer it may have its advantages but here it doesnt

69CrazyHorse · 04-01-2009, 08:13 PM

I would just drill a couple holes on the inside of the rim. Add some weights to under your foam and call it done.

RockChaser · 04-02-2009, 12:00 AM

anyone seen G-Air system?

da94broncodude · 04-02-2009, 12:10 AM

i agree with the previous statments, itd be like wheeling in full scale 1.1 and running full psi instead of airing down doesnt make a lot of sense, also i would do the 1/8 hole as well as looking into memory foam

03-31-2009, 08:28 PM	#1
JasonF88 Rock Stacker Join Date: Jun 2007 Location: Cohoes Posts: 51	tire question i saw a vid where a guy drilled a small hole in his wheel and stuck it in the freezer and took it out then screwed a screw in the hole with a o-ring then unthawed it with a hair drier. i'm not sure if there was any foams but is this a good idea?

03-31-2009, 08:34 PM	#2
Rockcrawler I wanna be Dave Join Date: Jan 2005 Location: Hueytown, Alabama Posts: 6,777	What are you trying to accomplish and what wheels?

03-31-2009, 08:35 PM	#3
rburda Rock Stacker Join Date: Jan 2009 Location: Madisonville, TN Posts: 88	This is not the best idea for rock crawling. With air in the tires you will get a bouncy effect when going over rock. You will find most people drill holes in their wheels(if not already present) to let air escape so it will give it a more wrap around effect on the rocks.

03-31-2009, 08:38 PM	#4
JasonF88 Rock Stacker Join Date: Jun 2007 Location: Cohoes Posts: 51	thats what i was aiming for but also was considering the bouncing as a factor with inflatable tires. how big of a hole should i drill in each rim? 1/8"?

03-31-2009, 08:41 PM	#5
Rockcrawler I wanna be Dave Join Date: Jan 2005 Location: Hueytown, Alabama Posts: 6,777	You dont want inflatable tires in a comp rig. 1/8" is what my air holes are. Depending on how dense the foam is, you might need 2 of them.

03-31-2009, 09:01 PM	#6
JasonF88 Rock Stacker Join Date: Jun 2007 Location: Cohoes Posts: 51	i have stock foams so what should i do?

03-31-2009, 09:14 PM	#7
ultimate_monkey Rock Crawler Join Date: Mar 2009 Location: Victoria BC Posts: 988	id drill two, 1/8" holes completly oposite of each other

03-31-2009, 09:19 PM	#8
JasonF88 Rock Stacker Join Date: Jun 2007 Location: Cohoes Posts: 51	ok thanks i appreciate the help.

04-01-2009, 07:56 AM	#9
Squamch Newbie Join Date: Mar 2009 Location: Victoria BC Posts: 21	I have one hole, and star cut stock foams, air flow is just fine in and out, with 1/8" hole, I doubt you'd need any more than that. I drilled mine with a regular cordless drill too, there's talk of that not workin, but unless you're some kinda drunken three fingered air thief you should be able to pull it off without drilling your leg/hand/whatever you use to hold the wheel steady.

04-01-2009, 03:17 PM	#10
mac67 Rock Stacker Join Date: Oct 2008 Location: santa cruz Posts: 71	Did they fill the tire with water first then freeze it? If you did that then you could still have a soft tire with some serious weight.

04-01-2009, 05:02 PM	#11
badnuz Quarry Creeper Join Date: Sep 2008 Location: by a river Posts: 253	hae i saw that video too i was going to do it but my tire has got a rip in it.it looks like a good idea for more hight clearance

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04-01-2009, 05:09 PM	#12
ultimate_monkey Rock Crawler Join Date: Mar 2009 Location: Victoria BC Posts: 988	ok lets play this out. cold air is denser then warm / hot air, by putting the tire in the freezer it "fills" with dense air, then when you plug the hole, as it warms up it will expand and "fill" the tire up, for crawling this is a bad idea, it will make the tire very firm (wont wrap around rocks) will be very bouncy, make your truck harder to controll. filling it with water then freezing is even dumber, it will make the tire rock hard, will have 0 give to it, and its just goin to melt any way. how ever some 1:1 comp buggies do put water in their tires to put alot of weight low down, this may work in the RC world, how ever you wold have to run no foams. try it out, let us know

04-01-2009, 06:29 PM	#13
JasonF88 Rock Stacker Join Date: Jun 2007 Location: Cohoes Posts: 51	in the video the guy put the tire in the freezer for 10 - 15 minutes letting it fill with the freezing air and when he pulled the tire out of the freezer he hurried up and put in the screw with the o-ring so it didn't leak then he unthawed it with a hair dryer. maybe someone has a spare set of wheels and tires to try this and confirm how it works. if i were to guess i'd say he didn't use foams though.

04-01-2009, 07:32 PM	#14
ultimate_monkey Rock Crawler Join Date: Mar 2009 Location: Victoria BC Posts: 988	iv seen the video and know what your talking about. but its just plain well a bad idea for crawling aplications... if you were building a go fast sang buggy / dirt track racer it may have its advantages but here it doesnt

04-01-2009, 08:13 PM	#15
69CrazyHorse Quarry Creeper Join Date: Dec 2008 Location: Aurora Colorado Posts: 346	I would just drill a couple holes on the inside of the rim. Add some weights to under your foam and call it done.

04-02-2009, 12:00 AM	#16
RockChaser Newbie Join Date: Feb 2009 Location: Aiea Posts: 37	anyone seen G-Air system?

04-02-2009, 12:10 AM	#17
da94broncodude Newbie Join Date: Sep 2008 Location: Dub jay Posts: 31	i agree with the previous statments, itd be like wheeling in full scale 1.1 and running full psi instead of airing down doesnt make a lot of sense, also i would do the 1/8 hole as well as looking into memory foam

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Thread: tire question