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Post by bigkenx on Apr 19, 2015 18:26:50 GMT
Great work
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Post by danm54 on Apr 26, 2015 14:23:46 GMT
So I've been having wheel to rad clearance issues again, it was close with the 750 front end in and the bike sat a little high. The Buell forks are 30mm shorter though so it would've meant having the bike sit high, the front wheel coming close to the rad under heavy braking and a big step on the top yoke to meet the forks. With all that I decided to sort it properly and cut the rad down. The bike sits at the right height and I'll have enough clearance between the rad and front wheel. That's actually the second attempt at welding the bottom up, the cross sections are .5mm thick and I kept putting pin hole in them with the welder! Could be neater welds I think but I'm still a beginner! Got the boost gauge mounted too, cut the mount off the old bracket with the gsxr clocks, tidied it up and welded a nut on the light frame. Nice and easy.
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Post by katana on Apr 26, 2015 15:30:22 GMT
Bit drastic loosing a 1/3rd of your cooling capacity! Think I would have restricted the wheel travel in preference?
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Post by danm54 on Apr 26, 2015 21:56:37 GMT
It is a bit drastic yes but as the exhaust manifold is bigger than standard it kicks the rad further forward.
I can add the lower offcut further down if need be but I'll see how it goes.
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Post by Kristjan on Apr 27, 2015 6:02:17 GMT
I also cut my rad down, big bore and high comp, no issues so far. I don't even have a fan on mine.
And yes welding it is tricky, even for me - I tig shit together every day.
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Post by danm54 on Apr 27, 2015 21:12:27 GMT
Yea the rf6 and the gsxr never seem to move the temp gauge far at all unless sat in traffic. I can count on one hand the amount of times the fan has came on!
Its got a higher cfm fan sat behind it and the oil cooler has a couple of fans so it should stay cool enough.
Nice to know I'm not the only one to cut a rad down on a road bike, or have problems welding it up!
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Post by andrey on Apr 28, 2015 6:57:42 GMT
Old Rad is always tricky to weld...in some cases impossible.
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Post by Kristjan on Apr 28, 2015 16:39:51 GMT
I need a new one anyway as it had damage between ribs that I didnt notice and did a temporary fix. I'm thinking of getting a Kwak Z750 radiator as it's already smaller and pipes seem to be in the right places. Havent find dimensions, though.
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Post by danm54 on Apr 30, 2015 21:01:01 GMT
Tested the rad last night, got 2 tiny pin holes in the weld, just have to pool it up and it should be good.
Wired up the new clocks too, going to sort out the arm switch for the air shifter and the push button, not happy with the old setup.
Also got the speed sensor mounted and the magnets in the front disc bolts. Need to find some imperial bolts for the muddy.
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Post by danm54 on May 4, 2015 0:05:50 GMT
So the rad is finished, leak tested and new mounts made on the bottom. Will probably make a better one once I know it'll work ok. No pics yet. Pics of the speed sensor, nice and easy. Aquired a lathe off my dad the other week as well, nice freebie as he was upgradig. Got the throttle body on there to open up the back so its round and matches the turbo intake.
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Post by bigkenx on May 4, 2015 7:52:37 GMT
Good work looking good
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Post by danm54 on Jun 22, 2015 21:18:49 GMT
Things are moving! Tiff has been a busy boy designing and milling the cush hub. Work of art really. The back plate which bolts to the wheel Fitted with 12 bits of polyurethane rod The top cover sits over the back plate. This has a bearing to carry the load and carries the sprocket which actually sits behind the back plate. All held in place with a top hat spacer which makes it easy to just slot the wheel in the swinger and it also carries the wheel bearing to sleeve that down the the K4 spindle diameter. Trial fit without the sprocket. Assembled without the poly rods for now to make sure everything moves as it should. The chain is a little tight but I have a few spare links to go in. This will be heading back to Tiff now for a final touch up then anodising. Top yoke design is well under way and milling should start soon.
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Post by greasemonkey on Jun 24, 2015 6:30:43 GMT
That cush hub really is a work of art. Nicely done m8.
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Post by gray7/11 on Jun 24, 2015 17:39:22 GMT
Some great work there
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Post by andrey on Jun 25, 2015 4:59:30 GMT
Have you logged MAP readings at idle? The engine can handle pretty low idle....I always wonder if the single throttle setup, have better vacuum?
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