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Old 07-14-2012, 09:39 AM   #76
Sparqq
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why the need of a relay for the coolant light?
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Old 07-17-2012, 04:09 PM   #77
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Coolant Relay

When I was testing the LED set up, the coolant high temperature light always seemed to have a slight glow.
My thoughts on this was that there is a slight earth or continuity in the circuit (possibility in the sender or the computer) , just enough to allow sufficient current flow, to ever so slightly illuminate the LED.
My fix was to use a micro relay – in hindsight this may have been a mistake as I have encapsulated the whole lot in potting mix – if the relay fails – have to rego the entire lot! Time will tell!
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Old 07-17-2012, 04:14 PM   #78
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Pic's

Mark - please share any pic's that you have – we are all guilty of stealing others ideas and work – you might have the solution for some of my issues!


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Originally Posted by ergomoto View Post
Been looking for this alloy swingarm mod and thread for a long, long time now Damian-74. Thank you, I sense capable movement on this issue. Much thanks too for the progress lath & mill pics re: the GS/DRZ swap, not to mention Aquatics 3D modeling illustrations. Jakubs TT & Factory swingarm pics prove the alloy work has been done, if not trickled down.

Was disappointed to find no movement from BMW on suspension in general when the Sertao was debuted, you know, to upgrade too.

In the mean time, I'm stretching the simple steel rectangular box channel .82" to better clear an 18" wheel and 130/80 18 DOT knobby. I'm in the middle of the Emig Dakar/KTM Clamp build up front, as it's still cheeper for me to buy that clamp kit & KTM forks than buy a 3 point mill and garage space to work. I have requests for rake angles in to Gary, but hope the rake is closer to the KTM 63.5° than the stock Dakar at 61° to keep the wheelbase at or below 58.5" even after I stretch the swingarm.

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Old 07-20-2012, 06:29 PM   #79
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Quote:
Originally Posted by Sparqq View Post
detailed pics:








Are you guys sure this swingarm was meant for a F650?

The Schalber Rally bikes used a different swingarm and the one they used indeed do fit a 650 GS.
You want proof?

Here you go:

Schalber F650 RR (the original carb model)




Same swingarm on a 650 GS:


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Old 07-21-2012, 02:10 AM   #80
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Sub Frame

Ok – found some time and got a good start on the sub-frame.

Main rails - 6060 25mm x 3mm square (radius corner)
Ends – 6061, 25mm billet
Gussets – 5083, 3mm plate

Still lots to do – but I think that it will be about 3kg’s when finished.





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Old 07-21-2012, 05:03 AM   #81
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Very nice work D! Very nice.

I assume you keeping notes and sketches for when you get a request for the 2nd and 3rd and.......

Quote:
Originally Posted by Damian_74 View Post
Ok – found some time and got a good start on the sub-frame.

Main rails - 6060 25mm x 3mm square (radius corner)
Ends – 6061, 25mm billet
Gussets – 5083, 3mm plate

Still lots to do – but I think that it will be about 3kg’s when finished.





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Old 07-21-2012, 05:08 AM   #82
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Subframe

If you are offering to push them through on the CNC we might have a deal - as you know - a manual mill take lots of time!

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Very nice work D! Very nice.

I assume you keeping notes and sketches for when you get a request for the 2nd and 3rd and.......
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Old 07-21-2012, 05:32 AM   #83
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We need to talk over a beer sometime!

You at home in 2 weeks time?

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Originally Posted by Damian_74 View Post
If you are offering to push them through on the CNC we might have a deal - as you know - a manual mill take lots of time!
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Old 07-21-2012, 07:31 AM   #84
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Nice work!
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Old 07-22-2012, 11:04 AM   #85
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Thumb +1 On The FABulous Work

Thanks for the progress pics indeed Damion_74. Looking great! I immediately started thinking about how an alloy swing arm's wheel/chain adjusters could similarly be milled and welded in to rectangular box channel. It's the cross over and rear shock link strut mounts that would be con-foundery-in'. Anybody know anything about this swing arm fabricator, if I didn't find this elsewhere at this Forum, if not even this thread? http://www.klpracing.com/index.html

Got me wondering if the commonly milled swing arm wheel adjusters weren't an off the shelf pre-designed resource at some industry level, not unlike the ones on the TT unit or mystery swing arm Sparqq posted(?)

M
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Old 07-23-2012, 04:48 PM   #86
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Was looking at the 650x as well. Has anyone ever seen/built a updated full tubular frame/subframe that will take all OEM attachment points? Basically a F800 style frame set?
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Old 07-23-2012, 11:25 PM   #87
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Quote:
Originally Posted by Damian_74 View Post
Ok – found some time and got a good start on the sub-frame.

Main rails - 6060 25mm x 3mm square (radius corner)
Ends – 6061, 25mm billet
Gussets – 5083, 3mm plate

Still lots to do – but I think that it will be about 3kg’s when finished.
That does look very nice, I think I will do same thing in winter. I guess it saves around 3kg.
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Old 07-24-2012, 05:04 AM   #88
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Subframe Update









EDIT

On first impression, I think that my subframe might actually me a little stronger than the OEM – the stress calculations but the material strength at about the same, but there more stiffeners in mine. Stiffer is not always better – there needs to be some flexibility, steel has a greater fatigue strength than aluminium – the ultimate test will be the track!

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Old 07-24-2012, 06:51 AM   #89
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Weight?

I hope that it will be more than 3kg's! It just isn't the subframe - it is all the other stuff that BMW throws in - 2nd set of footpegs, grab rails, luggage rack etc... The all up savings should be over 5kg's - the scales will be the ultimate test!!!!!!!!!!

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That does look very nice, I think I will do same thing in winter. I guess it saves around 3kg.
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Old 07-24-2012, 07:42 AM   #90
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nice subframe!
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