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Old 01-03-2006, 02:22 PM   #1 (permalink)
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Cut and paste from another thread:

Quote:
Originally posted by the_hulkamaniac@Jun 2 2004, 12:42 AM
Here I copied this out of our ice racing league, so to speak it's easier than writing it all out.*

Quad Ice Race Tire Manual

This information has been supplied to provide the first time ice racer with the ability to build a set of tires that will work and last.* This information is current to the end of the 2003 ice race season and will be updated as the 2004 season unfolds.* This by no means is the only way to build tires but this information is courtesy of the fastest quad racers in Alberta and has been proven to last for thousands of kilometers of ice racing.

Tires:* * ** What’s working and what’s not.

Rear Tires

1.* * * * * Cheng Chen C-826 “Ice Tire”
* * * ** Size:* 20 x 11 x 9
* * * ** Features:* This is the traditional tire with 440 separate square knobs.* Flat profile.
* * * ** Pluses:* Durable, proven.* Great in soft ice conditions.
* * * ** Minuses:* With 440 screws installed it is heavy!
* * * ** Hot Setup:* Remove some knobs and reduce the number of screws to hook up better.* Use one screw per knob.

2.* * * * * Dunlop K927
* * * ** Size:* 20 x 10 x 10
* * * ** Features:* Alternating angled knob pattern with 110 knobs.* Rounded profile and light weight casing.
* * * ** Pluses:* With two screws per knob it holds 220 screws and weighs 4 – 6 pounds less than a Cheng Chen.* Works on hard and soft ice.
* * * ** Minuses:* Need to put on very wide rims to flatten the profile.* Hard to find a supplier that has these in stock.
* * * ** Hot Setup:* 20 x 10 x 10 on 10 x 10 rims.* 220 of 1-1/4 screws.

3.* * * * * Kenda Klaws
* * * ** Features:* Similar to Dunlop K927 but has a dimple in the knob.* Curved profile with light weight carcass.
* * * ** Pluses:* The same as Dunlop.* Readily available.
* * * ** Minuses:* Limited time on these but what a great tire on hard ice!
* * * ** Hot Setup:* The same as Dunlop K927.

Front Tires

Two schools of thought – Large diameter for crawling out of ruts vs. small diameter and lighter casing for speed.* Reality is most front tires work reasonably well in all conditions.

1.* * * * * Cheng Chen Wooley Booger Copy
* * * ** Size:* 22 x 8 x 10
* * * ** Features:* Has lots of rubber to mount your screws.* Has a flat profile.
* * * ** Pluses:* Has good directional ribs and large rolling diameter.* Can use short 1⁄2” Gold Cutter screw that does not go through the tire.
* * * ** Minuses:* More reciprocating weight than other tires and you will have to replace missing screws after each race.
* * * ** Hot Setup:* Five screws per bar and one per knob.* 1/2” Gold Cutters with 3/8” high head.* Outer knobs can be removed on both sided to increase screw pressure.


2.* * * * * Maxis Razor
* * * ** Size:* 21 x 7 x 10
* * * ** Features:* Center rib, curved profile.
* * * ** Pluses:* Lightweight with good screw pressure from center rib design.* Can use 1⁄4” high screws.
* * * ** Minuses:* Knobs are soft so you need to run the screws through the tire and support them with the 5/8” or 3/4” flanged nuts.
* * * ** Hot Setup:* Use 1-1/4” maverick screw, anchor them with Wurth pawl nuts, and seal the tire and nuts with urethane on the inside.

3.* * * * * Maxis Maverick
* * * ** Size:* 21 x 7 x 10
* * * ** Features:* A V-knob pattern with a curved profile on a light casing.
* * * ** Pluses:* Light and needs fewer screws.
* * * ** Minuses:* Not much experience with this tire but it has made the top three list.
* * * ** Hot Setup:* Can run the V-pattern forward or reverse to change braking characteristics.* Use Maverick 1-1/4” with pawl nuts.* Five screws per center V-rib, one per knob.

Ice Screws

What’s available, what’s hot!

1.* * * * * Gold Cutter – AMA approved “USA rules”.
* * * ** Features:* 3/8” high head with a sharp cutting edge and a grooved feature to prevent the center from packing with ice.* Shank is .129” O.D.

2.* * * * * Holiday Ice Screw – CMA approved “Canadian rules”.
* * * ** Features:* 1/4” high head with a larger shank (.160” O.D.)* Has a .300” washer at base of head, taller head, bigger shank because of increased stresses.

3.* * * * * Maverick Ice Screw – CMA approved.
* * * ** New screw for 2003 with a combination of features from both Gold Cutter and Holiday screws.
* * * * * * Features:* 1/4” high with sharp edge and V-grooved center on the head.* Large shank as well as a 3mm larger base collar (.400”) to provide stability.* 1-1/4” and 1-1/2” sizes but by 2004 will have more length selections.

Retaining Nuts

Pawl or speed nuts – what is being used.

1.* * * Wurth* * * * * * * #502-2557
* * * * * * * * * * * * * * * ** #10x1/2” O.D. flange

* * * ** Features:* * * ** Good retention and smaller and lighter but not as much support as the 3/4” or 5/8” sizes.

2.* * * Wurth* * * * * * * #502-2558
* * * * * * * * * * * * * * * ** #10x3/4” O.D. flange

* * * ** Features:* * * ** Same as 2557 but has a larger flange with more support.

3.* * * Au-ve-co* * * ** #2896
* * * * * * * * * * * * * * * * ** 3/16” hole 5/8” O.D. flange

* * * ** Features:* * * ** The hole is slightly larger than #10, so not as tight fitting on the screw shank.* Would be too loose on gold cutter screws.* Best feature is 3 tabs punched around flange O.D. that prevent it from rotating off.

Tire Scaling Materials

The Cheap

1.* * * Locktite Quick-Tite Gel, 4 oz. Container
* * * * * * * * * * * * * * * * * * * * * Available at Canadian Tire
* * * * * * * * * * * * * * * * * * * * * Can be applied to the shank of a screw near the head to help seal the hole.

The Expensive

2.* * * * * Duramix 4374
Two-part rubber compound that will adhere to rubber
Can be used on the upper shank of the screw at installation
Provides a superior seal to the nuts
Is best applied to the hollow of the nut then, as the nut is installed, it will coat the screw to act as a locking agent.
Available at Acklands or other auto body suppliers that carry Duramix products.
6 oz. Tube $45.00, at least two kits per tire
Note:* has very short working time

The Cheap

3.* * * * * Windshield Urethane
Comes in 310 ml. Cartridges of high viscosity or low viscosity vs. costly mix.* The high viscosity dries faster.
The best success with urethane is to coat the screw and nut after installation and the nut can not come off past the coating.
You will need a high quality caulking gun to apply this stuff.* It eats cheap guns.
Available from Greggs Distributors.* 3M #08609 WINDO-WELD SUPER FAST URETHANE

Building Tires

1.* * * * * Clean the inside of the tire with acetone or similar cleaner to remove dirt and releasing agents from the surface.

2.* * * * * Lay out your pattern with paint pencil.* Establish a left and right tire and mark them clearly.

3.* * * * * Install the screws with the tire inflated to minimize hole size.
Note:* Be careful to space or tilt the screws to allow space for the nuts on the inside.* The small diameter Wurth 502-2557 nut is handy to use when crowding occurs.

4.* * * * * When installed the screws, make sure they seat against the tire but do not sink them in.

5.* * * * * Install retaining nuts.* Again, seat the nut against the surface but do not pull the screw any deeper.

6.* * * * * Apply the urethane to coat the protruding shank and nut.* Use a cheap paint brush and cut the bristles short.* Lay down a little at a time and daub it onto the nut, screw and casing in a thin layer.* This will dry quickly and set up hard.*

For ice racing use #1 for front and rear set-up, they will work any where.* #1 on the front is the best any where.* They last forever!* #2-3 for the rear, if youre just playing.* Follow the instructions, take you time and you'll never go flat.
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