cutting tires
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From: iowa
cutting tires
I know probably most of you guys on here know what I am talking about but I got asked several times last night on chat what I meant by cutting my tires so thought I would post up comparison pics of cut, and uncut to show what I have been doing. The one that is cut is basically just roughed in but had to take these pictures now because I am going to get the other one roughed in today, and wanted a pic with a untouched tire plus I only have one week till I race for the last time this season and will probably just run them this time in the roughed in stage so need to get the equal.
anyhow heres the pics
Oh btw so far I have reduced the weight of the tire by 10lbs
they are now down to 116lbs ea with the rims.
anyhow heres the pics
Oh btw so far I have reduced the weight of the tire by 10lbs
they are now down to 116lbs ea with the rims.
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Joined: May 2000
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From: Senoia, GA
awesome man they are looking great! how are you cutting the blocks out? i remember back when kubota did his boggers he used a modified sawzall blade and it would slice right through them! pretty neat stuff
i am assuming your class allows cut tires?
-cutts-
i am assuming your class allows cut tires?
-cutts-
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From: iowa
yeah my class allows cut tires bu tmost be a dot apporved tire to start with. (which is why I am not using paddle tires or ag tires instead to answer that question in advance)
I am doing the same thing using a modified sawzall blade then using a heated tire groover to finish them and after that I will use a special grinding wheel for use on tires to get the final shape.
edit I just noticed your avatar I love it.
I am doing the same thing using a modified sawzall blade then using a heated tire groover to finish them and after that I will use a special grinding wheel for use on tires to get the final shape.
edit I just noticed your avatar I love it.
Last edited by monsterbaby; Oct 8, 2005 at 05:00 PM.
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From: iowa
I only resharpened mine once per tire but I probably should have done it a little more was starting to get hot by the time I got through the tire. When the blade is fresh about 15 seconds per lug at most maybe 20 when you need to resharpen it.
The tire groover takes a little longer I probably should get a #10 blade would make it better, and faster but can't get one before this next weekend so just using a #5 for now. Probably got a total of 2hrs into each tire so far.
I think the #5 blade will work really good on cupping the front side of the lugs though.
The tire groover takes a little longer I probably should get a #10 blade would make it better, and faster but can't get one before this next weekend so just using a #5 for now. Probably got a total of 2hrs into each tire so far.
I think the #5 blade will work really good on cupping the front side of the lugs though.
Last edited by monsterbaby; Oct 9, 2005 at 12:17 AM.
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Joined: Jul 2003
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From: Spokane, WA
Man that's a lot of bling you got in those rims Rob. That should cut some time right there. 
Seriously though, that's the coolest looking rim I've seen on a mud truck. Nice job of hacking up your new rubbers too.
Seriously though, that's the coolest looking rim I've seen on a mud truck. Nice job of hacking up your new rubbers too.
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I cut a set of 31 inch baja claws this past summer(31 inch boggers are too wide for the class) To remove the majority of the lug, I used a wood chisel heated up with my cutting torch- the first couple of cuts require some muscle, but once you get the chisel heated evenly, it just slices right through. There was roughly about 1/8 inch left over that I removed with a router with a 1/2 bit. The smoke really rolls and damn, that flying rubber gets hot ( had burns on my arms for a couple of weeks) I tried initially to cut entire lug off with the router, but that was just too much rubber and the bit would just go in so far then plug up and sit in one spot. First tire took me about 90 min, but by the time I did the last one, I whipped that entire tire out in 45 min. Rob, if you would like to borrow that router setup, come and get it- I only bought the thing to do those tires, I have no other use for it, I am shure it will save you some serious time.
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Joined: Feb 2005
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From: GA
you need the longest sawzall blade you cna find. all you do is sharpen it like a knifeblade on a bench grinder. then once you get it in the tire it heats up and cuts through the rubber like a hot knife through butter.
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From: iowa
don't forget to get ALL the paint off the blade I use the wire wheel on my grinder to do that. And you will know when you need to resharpen the blade it starts really smoking, and getting really hard to cut.
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From: iowa
rubberduck here is a picture of the blades I used and the tire groover I use the short one for cutting the back side of the lugs as you don't want the end going into the tire which they will really easy.
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From: iowa
Originally Posted by GreenSubmarine
Looking good. Don't forget the video of your run!! Also, once finished, give us the best estimate of time/traction gain of the cut tires versus the stock configuration. I'm always curious.
don't know if I will have vids from this race since my wife isn't gonna be able to make it I don't hve anyone to run the cam unless one of you guys want to volunteer to come up, and tape it for me.
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From: San Francisco Bay Area
Nice work on the blade for the Sawzall -- you make it sound easy, but it's still a lot of work.
And you would need the mother of all tire-cutters to remove whole lugs, but they're quick and accurate for reshaping lugs and opening up the void space. But there's nothing more fun than cutting your own tread, especially on a budget, you can buy cheapo, "million mile" tires and cut them to be great mud/snow tires ... I'd never even thought of opening up mudders or boggers, but I guess that's racing.
And you would need the mother of all tire-cutters to remove whole lugs, but they're quick and accurate for reshaping lugs and opening up the void space. But there's nothing more fun than cutting your own tread, especially on a budget, you can buy cheapo, "million mile" tires and cut them to be great mud/snow tires ... I'd never even thought of opening up mudders or boggers, but I guess that's racing.