2010 AK sled projects

Finished the cooler mod. Did some grinding on the cooler so it would match the lines on the bulkhead and clear the motor mounts. I also welded a plug in the lower port.
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Had to notch two of the motor mount ridges so the coolant hose would clear.
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Going to rivet it tomorrow and start on the tunnel.
 
Still tons of work left but at least the tunnel is attached to the bulkhead. I angled it up a little so the running boards would be about an inch higher off the ground in the rear and the back of the tunnel would have some more clearance from the track. Tomorrow I'll get the cat braces mounted and rear suspension brackets built.

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Looking awesome as always, But everytime you post this stuff it keeps making me think more and more I need to get moving on my sled. Not cool. Too much work and not enough alone time with the Nytro.
 
Finally got to work on my sled today, Its just torn down now but at least its not still ridable like it was up until today. Probably wont have much for pic's or progress until I get back from vacation the end of the month.
 
Got the front suspension holes drilled and mounted the front swingarm so I could double check the rear measurements.
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Instead of making separate rear mounts I just scrapped the original ones I made, bought some more 4130 plate and made new ones that extend all the way to the rear suspension mount. I still need to clean up a few edges and hole saw them.
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Mounted in the tunnel
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That's it for rivets, I want this tunnel to be clean!
 
Heres my putty cat. Honestly i think the front bulkhead with front suspension is lighter than our subframes :o|

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Well got some time again to work on my sled tonight but this will be the last till the end of the month.

I'm waiting on stuff to get going on any of the big projects so I went to work on my Exhaust tonight. My header is basically destroyed, so I was thinking about replacing it but also have to spend a ton of money on other things so If I can save a few bucks here and there I need too. So I took a grinder to my header to start making it better, I started by completely cutting the tail pipe off to run 2" right to the collector instead of it comes out like 1 7/8 then I had a 2" slid over that to adapt to my muffler. I'm also going to clean up a couple weld blemishes on the inside of the collector while I have it open. The next project I had broke off one of the mounts so I patched that up and since I will be running totally new mounting and the header is a couple inches farther forward now I could completely remove the mount.
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The next project is part of removing anything I don't need off the sled so I decided I don't like the dough nuts and decided to eliminate them. With a little more grinding and a little help of a wirsbo expander I welded it straight to the flex pipe.
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we'll see if SRX will pop up and tell me if my excell header is still under warranty lol ;)!
 
Got the front of the running boards trimmed, extrusion fitted, and footwells in place. I need to get my reinforcements on the footwells and do some trimming but that should be easy.
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I ordered an SSC foot pedal(http://www.ssccontrols.com/homepage-TIG ... ntrols.htm) for my welder and once that gets here I'll do all the welding to the tunnel and extrusion. I'd say I'm pretty good now but I know with the foot pedal I can get cleaner welds. The AMP adjustment on the gun is in an awkward place and I have a hard time keeping the gun steady while adjusting the amps. I also bought all the 1/16 stuff so I can weld thin sheet now. I'm cmpletely hooked on TIG welding, I can definitely see myself getting a bigger welder within the next year.

SSC pedal vs. Miller
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I also bought a 5 piece knockout set that should be here Saturday. It's got 1", 1 1/4", 1 1/2", 1 3/4", and 2" dies. As soon as it gets here I'll punch the holes in the 4130 plates and rivet everything together.
 
New punch set.
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I tried with a ratchet and then the press and the press was a lot easier. The ratchet would probably work fine on aluminum, but .063 4130 is a little harder. You just use the bolt as a guide and press away. The faster you press the cleaner the hole. I'm ecstatic that I never have to use a hole saw again!
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Both braces cleaned up and ready to rivet.
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Got everything riveted. I pretty much copied the same thing I've been doing for the last two seasons which is flared holes for snow evacuation and screws for traction. The screws work incredibly well and don't build up snow on them. I had Better Boards on at one point in 2008 but this setup clears snow almost as good and is way stronger.
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10-32 aircraft screws with low profile nuts for traction. The first 6 are rivets as I found out early on that you can't clear snow out of the footwell with screws. With the back half of my boot hitting screws I still get really good grip and I can also kick the snow out of the footwell.
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All countersunk
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Installed the tunnel and skid so I could start working on my rear bumper. I think I'm going to need about 80" of tubing but being 3/4" .058 4130 it should still be right under 3.5 lbs. Once the bumper is done I'll make my tunnel extension.
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I was planning on using a Rev or big IQ gas tank but just for grins I set the stock tank on and it fit perfect, so I think I'll just going to use it. It'll save me from having to buy a gas tank and external pump.
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Shortened my exhaust from 20" to 16" and lost 14 ounces. I also wanted a little more noise out of it.
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I called Fabcraft today to order the cooler extrusion and they're out until October. I got lucky though and a good friend had an extra set of IQR coolers. I got them cut and fitted, just need to weld on the outlets and then weld the extrusion together. Total length is right at 8'.
What I started with
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So far...
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I decided to do my rear bumper out of 1" instead of 3/4" which was a little flimsy. Once I get my 1" die for the bender I'll start that project.
 
Front of the tunnel cut out and the block-off plate installed so I can start mocking up the new one. I'm really glad I bought a second bulkhead to build this sled from so I could use my old bulkhead and tunnel to pull measurements off of. Takes a lot of the guess work out.
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I'm going to cut the existing block-off at the permanent marker line and bend a new piece where the header goes through.

Finished the cooler which took nearly all day. The stock tunnel cooler and radiator weigh 5 lbs/5 oz, probably closer to 6 lbs when you include the mounting brackets and hardware. The new cooler weighs 4 lbs/ 7 oz.

Used 1" .058 5052 for the outlets
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Fully welded and cleaned up. Not bad for only having $85 into it.
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I had to angle the right outlet towards the outside of the sled so it would clear the exhaust shields.
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well here is my latest project. Im really not sure of the outcome of it but Im building a aluminum subframe. Im going for stiffer and lighter but I know for sure I will not be able to bend it every time I ride like I did with the steel one so I am going to be watching for trees/rocks for sure.

There is still a long way to go on it and a ton of cuts,bends and welds but I hope it turns out. Im a sheetmetal worker so drawing out ideas on metal is what I do we will just see how I do on this project.

Stock I had 25 lbs to deal with im hoping to come in around 15-20

sorry about the poor pic but you get the idea.
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