Phred2069

holes in rims may be sufficient if you only run in dry conditions. In wet condition they'll allow the water in, but not out and your tire will end up over a pound (with high risk of tearing it off the rim). Hole in the tire allow water to escape, although you'd think it's easy for water to enter there, speed will centrifuge it out faster that it enters.

gelshocker

iTrader: (1)

Point taken. So 2wd front tires: one, or two holes opposite sides? Cheers,

hobbs

iTrader: (32)

Quick 1.
What hole size is recommended???

Phred2069

Size doesn't matter. (she says)

I'd typically do two 1 or 2mm holes, opposite of each other. But I think this is of little importance. I use whatever tool i have on hand, or the nearest friend can hand me over.
& I'll let you do the conversion to imperial.

mtpocketsracing

iTrader: (2)

I was looking for opinions. so i gave one too

besides its only a few months old. within the year I don't consider it old yet

asc6000

iTrader: (15)

It may not matter.... but it does make a difference and if not done consistently it can kill any attempt at fine tuning a setup, making a couple random size holes with some random tool will give different results, setup problems being chased in the dark. There are specific reasons for different size holes as well. The vehicle, the tire, the insert, the track, the driver.. all are factors. At the very least someone should try to use the same hole all the time to eliminate one tuning variable.

1tenthallin

Can u clarify the issue as to ,if tire sauce affects tire foam then is the reward for preventing tire ballooning beneficial ? I run indoors on clay only with this particular SC and I really get great traction when I use tire sauce and would prefer to maintain the results I'm getting. The track has more technical than speed section so I just trying to decide if tires swell enough to gain advantage if they aren't getting high speeds to cause them to change diameter. ?

TurnNBurn

Saw this thread, and I thought I’d share my Rookie mistake - mostly because I thought it was funny, but hopefully to also spread the word as a lesson - “Check twice, punch once”.

So I bought a set of Pro-Line Primes - mostly to put on my brand new buggy while it’s on the shelf, but also to practice gluing and preparing tires (The last time I glued offf-road tires, punching holes wasn’t even a thing, and foams were primitive compared to today’s standards). Being directional tires, I carefully lined up my tires to make the hole punches. Well, after grabbing my LF, I realized that I punched the holes on the LEFT side of the tire! No problem, right? I’ll just swap sides and punch the holes on the right side of the other tire. Well, after punching the holes on the other tire and grabbing the foams, I realized that I punched the left side again.

Alright, alright, lesson learned - I’ll be super careful and get it right when I punch the rears. The LR went as planned; I punched the right side of the carcass. Now I’m feeling like a honcho, and punch the RR. As I get ready to stick the inserts in... I punched the freakin’ right side of the carcass again.

So yeah - the moral of the story with directional tires is,forget lining them up on the bench - use a silver Sharpie and put a dot where you intend to punch your holes, and double check that you’ve marked them correctly. Obviously, just looking at the tread pattern is not enough... I hope someone got a good laugh out of this. I can easily laugh at myself after getting past the shame, lol. FWIW, at least I got through the gluing without any fingers getting permanently fused together, lol... Although I may just use Medium glue after this bottle is done - holy crap that stuff dries faster than I remember! I had one small section that dried before the bead got completely seated back into the groove. It’s only a teeny bit, but it would be Nice to have an extra few seconds, that’s for sure.

TahoeDust

iTrader: (5)

So, I am just hopping back into this. Directional tires were not a thing a few years ago. I bought a set of directional tires and am going to be gluing them tomorrow. You don't punch them in center? You punch the inside portion?

TurnNBurn

There are different opinions on this - some people punch on the face of the tire, some on the sidewall. With regard to the sidewall, putting them on the inner side seems to be preferred... Just like some folks punch 4 holes, others only 2. It as mentioned above, whatever you do, you should probably be consistent about it, so that the buggy doesn’t feel “different” with every set of tires.

bonzo915

It's all preference

asadrian

iTrader: (7)

Are guys punching carpet tires? Front tires are proline wedge with no inserts. Rear are prisms.

Buckaroo

iTrader: (3)

A few at my track are, but by and far they're the exception. Most just go with the 2 holes in the rim.

asadrian

iTrader: (7)

Thanks! I was thinking in front without inserts might make them even softer and wasnt sure that would be good. Thought about maybe back would be helpful with ballooning of the tire

waitwhat

iTrader: (4)

You only need to punch holes in tires running closed cell foam. If you are running open cell foam (or no foam at all) holes in the tires will not change the way the tires work, unless there are no holes in your wheels.