RC Tire Truing, cutting, grooving tutorial: Part 1

[@jeffbryner5355]

Well thank you. I hope you do as well. Yeah alot of people run hole shots for loose amd as the sun goes down and the track grooves up we switch to bar tires like positrons. That's on our outdoor tracks. The indoor it's bar tires some Hoosier proline and de racing tires. De for all the tire speced classes

[@eugene4154]

Can you please tell me more about the foam itself, what is it made from what is the shore hardness, what is the foam known as in the retail world I am over in Australia and new to the hobby

[@jbtricklerc]

Eugene, those are great questions but I'm afraid I won't be much help. These tires are made by BSR tires. They do sell them in different hardness levels though which will also vary the amount of foam/rubber content. More information can be found on their website. As far as shore hardness goes that's something that can differ from racer to raver due to tire prep and softeners etc. The science there is within your own racing program. If you are looking for shore numbers based on the tires right out of the package. I don't have any notes on that because I didn't record anything until after I had them "broken in".

[@johnreyes1978]

Great video, info thx bud

[@jbtricklerc]

Happy to help John and happy to know you and others are finding this tutorial helpful. I appreciate the support and kind words.

[@todd6888]

This is super interesting as I am a 1/7 scale speed runner. Wondering if radial grooving would hold up at 130+ mph. Would sure be nice to add traction to keep the car straight.

[@jbtricklerc]

Todd that's awesome. I'm not sure I haven't done much with doped runs. But much like racing every bit counts.

[@RodEvens]

Where did you get the tire truer? What is the name, model #? Thank you.

[@jbtricklerc]

If my memory serves me correctly. I ordered from CRC directly. teamcrc.com/product/5006-one-touch-auto-tire-truer-12v/

[@JoshAintLoud]

Could this machine (with some modification) be used to regroove rollerskate wheels?

[@jbtricklerc]

Hmmm... That's a great question. I'm not sure. It would depend on diameter and likely need a custom mount/arbor.

[@JoshAintLoud]

@JBTrickleRC could you tell me what the maximum clearance would be. From center of spindle to bottom plate x 2. I'm sure you know that. Lmao.

[@jbtricklerc]

@@JoshAintLoud honesty, I no longer have the foam tire truer. But I I know I cut my tires to 2.70 inches in diameter and some tires were close to 2.80 in in diameter. So I'd say there's at least that. Maybe 3". If you sent CRC an email or called them, I'm sure they would reply. They had great customer service as I spoke to them before.

[@youknoweverything7643]

Here in mobile Alabama we only run Hoosier type tires on our dirt track we only have one behind the hobby town they just wet and pack it and go racing so y'alls type cars won't work I dotn think they only run short course based classes buggy 2wd street stock class and 1/5 scale latemodels. We also have the carpet track only place here in mobile Alabama we run foams on we dont groove we just cut different sizes and camber into tires for our pan cars. Would your dirt latemodel work on a rough as in rough for a rc dirt oval track and wet type track with the same tires you cut and chassis it looks like the 17.5 cars look like a pan car but has shocks on all 4 corners and independent suspension would those work like the 17.5 class on a track like that or is y'alls track packed really tight and coated to keep it from getting rough and dirty on the cars

[@jbtricklerc]

RC Carpet Racers the 21.5 and 17.5 cars can run the Custom Works rubber tires and we have run some "loose dirt" special event races but around here everyone pretty much prefers high bite foam tire racing for the purpose built cars. We do run a lot of rubber tire buggy and slash based classes too. But generally it's always high bit smooth surface.

[@MycoAlan]

Great info ty!!! Just out of curiosity, do you know what type of foam is used in foam tires? Is it something that can be purchased and hand turned on a lathe to get new and interesting ideas to use on custom level?

[@jbtricklerc]

Alan that's a great question. I'm not sure what type of foam is used to be honest. I do know that they use various types as there are different compounds which means different hardness/stiffness levels and some have more rubber content than others. All these custom works and BSR tires come smooth so you can cut them however you choose but at that point you are limited to the diameter (which is usually around 2.74 inches give or take a bit). I believe at one point you could get just the wheels and foam to glue them yourself but not sure if that's an option anymore or what manufacturer offered that and I may be mistaken on that as well. I've always just purchased these specific tire types personally for the dirt oval side. Everything else I run are generally rubber tires.

[@MycoAlan]

@@jbtricklerc thank you

[@rbrown_barber4231]

Where can I get the groove cutting bit tool from

[@jbtricklerc]

rbrown, there are various places and brands but I personally used the Assault RC Groover. I got mine through BeachRC.com. Brent, the owner is a cool guy and I got to know him a bit running the SCOR series a couple years ago.

[@sandmanzrc]

Is truing and grooving the foams for 1/8 dirt oval totally necessary or can you just run them like they come?

[@jbtricklerc]

Sandman RC great question. In dirt oval racing the only slick tires I see is generally rubber tires and that's usually only on high bite dirt oval track. Loose dirt usually treaded or pin tires. Any and all foam tire dirt oval cars ive seen run grooved tires. Could it be done smooth? Maybe, but it would hurt more than help. It's all about grip and that's why we cut them the way we do generally.

[@jeffbryner5355]

Foam tired for dirt? In my state no one runs foam tires on dirt. We run pin rubber tires for loose dirt. Bar rubber tires for high bite amd factory stock is de racing grooved/ non grooved only. 13.5 is the slowest oval class we have though so we'd probably blow the foam right of the rim lol. Our sprint mwm sc mod and late model are all open motor/ tires classes.

[@jbtricklerc]

Jeff thank you sharing. I always enjoy hearing how different parts of the country, even world I should say, run their races. It very cool to see the similarities and differences. We have a good mix of rubber and foam tire racing around me though we are pretty much high bite only in my area. I've never ran pin tires for dirt oval. Plenty of rubber tire racing and foams though. Foams are a different world but I've grown to absolutely love it. Thank you for checking out and supporting the channel. Wishing you well in all your RC racing adventures.

[@JJRrcracingfoam]

Any idea where to get just the foams

[@jbtricklerc]

Honestly, I have no clue. I've always purchased them like this and I'm not so sure BSR even offers the foam by itself.

[@JJRrcracingfoam]

@@jbtricklerc ty

[@youknoweverything7643]

I'm gonna assume yall are racing on some really well prepped smooth dirt tracks only dirt track we got its rough and has divots and ruts not to bad but only runs short course based truck classes street stock and 1/5 scale late models. Cars with those foams won't ever work here I dont think the dirt modified I run comes off the track covered in dirt and mud sometimes

[@jbtricklerc]

RC Carpet Racers you are correct. Around here we run high bit dirt oval. Very smooth, very grippy and very fast. It's a blast! Tracks can get a bit touch occasionally but our race directors do a great job with track prep. The Red Clay around here makes it easier with that.

[@youknoweverything7643]

@@jbtricklerc yes that must be nice we have bright red clay down here as well but the only dirt clay oval rc track we have they suck at track prep I wish we had high bite tight packed track with lots of grip to run foam tires and be able to use the chassis other then the short course truck chassis or a buggy chassis and be able to run foam for high bite. But will never happen that's why I'm sticking with my indoor carpet racing

[@jbtricklerc]

@@youknoweverything7643 I can definitely understand that. It really is a blast.

[@rodericknobles7213]

It would be a 1/8 tire never seen this method where it is a cross cutting method wanted to know if it would work and if it would make you quicker in a 132 feet

[@jbtricklerc]

Roderick I know some people and some race groups race foam tires in drag racing but I'm honestly not sure since I don't have any experience in foam drag racing. Our local drag group is rubber tire only and they are generally slicks. Good question but afraid Im not sure.

[@bryanglover3775]

It's a great video but you realize you're a wooden blind partisan there kind of resemble the Old Macure and indy tread pattern wasn't sure if you were aware of that

[@jbtricklerc]

Bryan Glover I'm not exactly sure what you mean. Feel free to elaborate, but I appreciate the comment and that you thought it was a great video

[@bryanglover3775]

I was just saying that wooden partition thats left your computer the pattern on it looks like a Macurry or Indy tread pattern you know back in the early 80s I used to work on Sprint cars it kind of resembles it that's all I was saying kind of went along with your tire tutorial I thought lol😁

[@jbtricklerc]

@@bryanglover3775 lol I understand now. Thank you for elaborating more and clearing up my confusion. I just didn't understand what you meant at first but now you pointed it out I do see what you are talking about for sure. Thank you again for the comment and support.

[@landonhoyle5569]

What’s size adapter

[@jbtricklerc]

They offer a few variations. As long as its for a 1/10 dirt oval foam tire it should work. I cannot remember the exact version I was using. But the link here shows one that would work. Currently out of stock, but I'm sure it can be found elswhere. www.lefthander-rc.com/catalog/product_info.php?products_id=4168

[@jasonhastings4416]

What cutting bit do you use?

[@jbtricklerc]

Jason I used the CRC final cutting bit.

[@rodericknobles7213]

Will this work for drag racing

[@jbtricklerc]

Roderick it would depend on the size of the mounted wheel and tire. This cutter is for 1/10 use. I did look to see if a slash oval racing tire would fit and it did not. Would need a 1/8 scale cutter for that. I know drag tires vary in size as well.