Go Back   RCShortCourse.com Bulletin Board > ShortCourse & Desert Brand Specific Tech > HPI Blitz

Notices

Loading

Thread: Do you put holes in your tires before mounting?

Reply
 
LinkBack Thread Tools
Old 05-27-2010, 10:54 PM   #1
Newbie
 
Join Date: Mar 2010
Location: San Diego, CA
Posts: 23
Default Do you put holes in your tires before mounting?

I have never seen anthing here about venting the tires, but over on the Losi side, here is Adam Drake showing how to mount tires.

http://www.youtube.com/watch?v=kh2ob...layer_embedded

and over at rcuniverse, they say premounted aka and j concepts have the holes in them.

Just got some new calibers and going to do it.

Oh, I also did a search on these forums, and have pretty much only stuck to the blitz forum, but there are serveral threads in the tires and wheels section.
RcFrank is offline   Reply With Quote
Sponsored Links
Old 05-28-2010, 02:25 AM   #2
Addict
 
Join Date: Dec 2009
Location: Phoenix, Az
Posts: 547
Default

8th scale guys do that because there is no hole in the wheel.
Houps is offline   Reply With Quote
Old 05-28-2010, 04:28 AM   #3
Basher
 
Join Date: Apr 2010
Location: Upstate New York
Posts: 88
Default

I have never heard about this being done on an SC tire. If the rims that you have purchased have holes in them then you are good to go. If they don't then I would just drill some small 1/16" holes in the rim to vent the tire. I would not comprimise the tire in any fashion.....
mtuccio is offline   Reply With Quote
Old 05-28-2010, 04:45 AM   #4
Racer
 
Join Date: Apr 2010
Location: Georgia
Posts: 107
Default

Quote:
Originally Posted by Houps View Post
8th scale guys do that because there is no hole in the wheel.
uhhhh... every 1/8th wheel I have has a premade hole in it. You want a hole in the rim and the wheel.. helps to prevent ballooning and the water out.

It's not usually done on 1/10 SCT wheels.. SCT wheels often have harder sides, some are belted, both of which help prevent ballooning and keep more rubber on the ground. But there's no reason why you couldn't.

If there is a hole on the wheel.. I 100% recommend putting one in the tire.. otherwise you'll never get all the water out... a leather punch will do just fine. Its best to do it before you mount, but it can be done afterward if you pinch the tire enough.
xeonrage is offline   Reply With Quote
Old 05-28-2010, 06:22 AM   #5
Addict
 
Join Date: Nov 2009
Posts: 212
Default

I put 1/4" holes in the wheels. At least 2 of them to allow air to escape quickly on impacts. This can also help balance a wheel if it's too heavy on one side. If you have a section of wheel that keep falling to the bottom that's where you put the holes.

I've never been fond of putting a hole in the tire as I have seen a number of tires rip apart and the tear normally starts where the holes is made. If you're running stock motors or mild brushless setups this shouldn't be a problem but I don't recommend it for anyone running brushless 3S or higher setups.
JOHN01374 is offline   Reply With Quote
Old 05-28-2010, 07:47 AM   #6
SC Specialist
 
SoupSpoon's Avatar
 
Join Date: Nov 2009
Location: Seattle
Posts: 2,082
Default

I mounted up some wishbones last night, no holes for me. I never have... I don't run outside when it's wet so water isn't an issue for me. Not sure how it would help with ballooning, that will happen regardless. And if air can get in, it can get out.
SoupSpoon is offline   Reply With Quote
Old 05-28-2010, 07:51 AM   #7
Racer
 
Join Date: Dec 2009
Location: Kelowna, BC Canada
Posts: 124
Default

I put holes in the tread of my stock tires because I used to run the truck in the snow and wet regularly. It's a good way to let the water out, but it also lets more dirt in and I found that foams were destroyed very quickly.

I don't have holes in my new tire (just in the rim, but not on the tread.) because I don't run in water now so I don't see them as necessary.
chris.s. is offline   Reply With Quote
Old 05-28-2010, 08:34 AM   #8
Racer
 
Join Date: Jul 2009
Location: North Carolina
Posts: 170
Default

I put hole's in my wheels. It allows the foam to work properly. If you have 3 tires that are totally sealed from being glued, and one that has a breathing point from a missed glue point. Then its going to trow your handling off. Having the wholes (in the wheels) also allow for more tire contact, and more traction. I can see how having them in the tire could help compromise the tire in High power situation.
Majorpede is offline   Reply With Quote
Old 05-28-2010, 08:46 AM   #9
Addict
 
Join Date: Nov 2009
Location: peoria az
Posts: 386
Default

I vent my tires on my truggy and my sc because when dirt gets inside the wheel the centrifical force makes the dirt go in the foam and destroy it. But when it's on the outside of the tire the dirt can escape.
Dunerdude69 is offline   Reply With Quote
Old 05-28-2010, 08:48 AM   #10
RIP Buster
 
badger's Avatar
 
Join Date: Apr 2009
Posts: 1,318
Default

I've never added vent holes in my tires, but I always make sure the wheels have vent holes.
badger is offline   Reply With Quote
Old 05-28-2010, 08:52 AM   #11
Basher
 
Join Date: Apr 2010
Location: Upstate New York
Posts: 88
Default

I should be a bit more clear on my comment about comprimising the tire:

1) A hole in the tire will help water to get out (Good)
2) A hole in the tire will let dirt into the insert (Not good)
3) A hole in the rim will let the tire compress correctly and let air in/out (Good)
4) A hole added to the tire by the end user might comprimise the tire because it will be done with conventional tools such as a drill or a punch that might create an area where the tire could easily rip (Not good)

So there are pros and cons to doing this. If the manufacturer of the tire wanted holes in the tire then I would much rather they do this in the molding process to preserve the integrity of the tire. Have you ever seen what happens to a tire when you get a small cut in it under brushless power? It can rip the tire wide open in a heart beat. I don't think that I want to risk destroying 35-45 of rubber for a feature that will give me no more benefit than the hole in the rim. I hope this clears up the comment that I made above....
mtuccio is offline   Reply With Quote
Old 05-28-2010, 10:07 AM   #12
Addict
 
Join Date: Dec 2009
Location: Phoenix, Az
Posts: 547
Default

Quote:
Originally Posted by xeonrage View Post
uhhhh... every 1/8th wheel I have has a premade hole in it. You want a hole in the rim and the wheel.. helps to prevent ballooning and the water out.

It's not usually done on 1/10 SCT wheels.. SCT wheels often have harder sides, some are belted, both of which help prevent ballooning and keep more rubber on the ground. But there's no reason why you couldn't.

If there is a hole on the wheel.. I 100% recommend putting one in the tire.. otherwise you'll never get all the water out... a leather punch will do just fine. Its best to do it before you mount, but it can be done afterward if you pinch the tire enough.

Maybe every 8th scale wheel YOU have does have a hole, some don't. If you have that much water inside your tires that you need a hole to drain it, then you have more serious issues.

There are some advantages to doing it, I've never seen it done on SCT tires. IF your mounting a NEW set of tires, maybe try it out, but I personally wouldn't. If you do have water inside your tire it should be very minimal. Don't dip your tires in a bucket of water or "soak" them, spray them with Simple Grenn, use a brush to clean them, then very light water from the tap or use the brush you used to clean them to wipe off the cleaner and excess dirt.
Houps is offline   Reply With Quote
Old 05-28-2010, 10:15 AM   #13
Addict
 
Join Date: Dec 2009
Location: Phoenix, Az
Posts: 547
Default

Quote:
Originally Posted by Majorpede View Post
I put hole's in my wheels. It allows the foam to work properly. If you have 3 tires that are totally sealed from being glued, and one that has a breathing point from a missed glue point. Then its going to trow your handling off. Having the wholes (in the wheels) also allow for more tire contact, and more traction. I can see how having them in the tire could help compromise the tire in High power situation.
What do you mean, a hole in the wheel allows the foam to work properly, can you explain that better?

What SCT wheels are you running that don't have holes?
Houps is offline   Reply With Quote
Old 05-28-2010, 01:41 PM   #14
Addict
 
Join Date: Nov 2009
Posts: 212
Default

The foam inside the tire is designed to help the tire keep it's shape and absorb / control impacts. If you're tires are sealed air tight the tire will act like a balloon and bounce. The foams inside will effectively be doing nothing. Having air holes in the wheels allows air to escape and the truck sits down on the foams and allow them to work as designed.

Most SCT wheel do have holes but they are normally not large enough. I like to have at least two 1/4" holes in the rim.
JOHN01374 is offline   Reply With Quote
Old 05-28-2010, 02:08 PM   #15
Addict
 
Join Date: Jun 2009
Location: Temecula CA
Posts: 474
Default

I put holes in all of my tires, one on each side

Yes teh wheels I have do have holes in them but since I run AKA or Pro Line Foams they do not let the tire breath. If I spin up my 10.5 and then stop I can see a bit of air trapped in the tire (without a tire hole)

get a leather punch... you can pop a hole in them once there mounted or before
silver04RS is offline   Reply With Quote
Old 05-28-2010, 02:25 PM   #16
Basher
 
Join Date: Apr 2010
Location: Upstate New York
Posts: 88
Default

Quote:
Originally Posted by silver04RS View Post
I put holes in all of my tires, one on each side

Yes teh wheels I have do have holes in them but since I run AKA or Pro Line Foams they do not let the tire breath. If I spin up my 10.5 and then stop I can see a bit of air trapped in the tire (without a tire hole)

get a leather punch... you can pop a hole in them once there mounted or before
You make an excellent point here Travis...If you are using closed cell inserts then you will need to help the air escape thorugh the tire.....
mtuccio is offline   Reply With Quote
Old 05-29-2010, 05:45 PM   #17
Newbie
 
Join Date: Apr 2010
Location: Okayama, Japan
Posts: 37
Default

the 1/8th expert at my track runs a 3mm hole on opposite sides of his tyres.
First he puts alloy tape on the wheel to block the wheel holes, then punches two holes in the tyre.
He claims the tyre lasts long enough for the tread to wear down to nothing before the hole tears... He also said that if the holes don't tear on a nitro 1/8th or brushless 1/8th for that matter, then they shouldn't be a problem with a 1/10th SC...
He suggested putting 4 holes of 2mm dia. on cardinal points (that means North/south east/west in a cross shape) of the 1/10th tyres and blocking the wheel holes...

I would say that it could be worth trying out if you have access to wheels and tyres... my local shop doesn't stock any SC stuff... I'm pretty much stuck with buying tyres online and paying as much for shipping as the tyre costs... (basically paying twice the retail price...)
Antoka is offline   Reply With Quote
Old 02-03-2013, 07:14 AM   #18
Racer
 
Join Date: Jul 2012
Posts: 151
Default Re: Do you put holes in your tires before mounting?

Old thread, I just put 4 2mm holes in the 4 cardinal directions. It made sense, from a common sense perspective that multiple holes would let air out more quickly. My Pro-Line wheels did come with holes in the wheels, what is the best way to close them to prevent water intrusion?
JayhawkNavy02 is offline   Reply With Quote
Old 02-09-2013, 06:26 PM   #19
Addict
 
Join Date: Sep 2011
Location: Central Valley CA
Posts: 523
Default Re: Do you put holes in your tires before mounting?

I definitely do!

I use DE Racing wheels which have no inner hole built in so I had to come up with some sort of system to get the holes accurate and the cut as smooth as can be to rule out any ripping.

My tool of choice is a "Telescoping antenna base" and pulled it apart, you will be left with a sharp round edge perfect for punching holes in tires before you mount them:
Click the image to open in full size.


And here is a shot of the tire punched:
Click the image to open in full size.
WPSC10knewb is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -7. The time now is 07:24 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2007 RCShortcourse.com