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  #1  
Old 05-07-2009
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Default RB5 mid

Hello!

Here is my converted kyosho rb5 in the making.
I have managed to modify the gearbox with reverse rotation.
Rear shock tower and tower mount is stock.







/Mr. Pink
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  #2  
Old 05-07-2009
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Yes, here you are. Cool project. Good luck with it. Sure it will run well. Saw you in action at the Nordics with you Lazer. Congratulations to a A-main spot!
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  #3  
Old 05-07-2009
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Some electronics installed...




/Mr. Pink
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Old 05-07-2009
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Default conversion

nice work, looks fab mate. i think you can say your a perfectionist.
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  #5  
Old 05-07-2009
rcracer1 rcracer1 is offline
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The 1st version of the x6 had a problem where the torque caused on power created lift in the rear. With your gear box, does on-power cause the front to want to come up (good) or push down?
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  #6  
Old 05-07-2009
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Quote:
Originally Posted by rcracer1 View Post
The 1st version of the x6 had a problem where the torque caused on power created lift in the rear. With your gear box, does on-power cause the front to want to come up (good) or push down?
The Rb5 has got a lot of rear grip so maybe it wont be an issue.
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  #7  
Old 05-07-2009
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Tested the car today at our local track (green hill) with 100% astroturf.
I do recognize the rear rb5 suspension. Still alot of grip.
It behaves much like normal buggy. On power gives alot of rear traction.
I think the weight distrubution is much like stock rb5 but now the yaw-moment of inertia with the mid-setup is lower and the car changes direction like a mid-buggy should.
It is very easy to drive and handles bumps much better than expected.
I am very keen to test the car on a low-grip track as soon as possible.

/Mr. Pink
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  #8  
Old 05-07-2009
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I agree the car was ace to see IRL!! it will be the future @ our track
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  #9  
Old 06-07-2009
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Attempted to make a body + undertray today out of soda bottles.

The result is not top notch but it will do as a prototype.





/Mr.Pink
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  #10  
Old 07-07-2009
kek23k kek23k is offline
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That looks fantastic, well done ;D
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  #11  
Old 07-07-2009
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Is the wheelbase as original? Just looks long to me?
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  #12  
Old 07-07-2009
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No the wheelbase is ~1cm longer than original.
I hope the combination of low inertia and longer wheelbase will give a stable but quick car.

Edit: Put the car on the scales and mesured a total weight of 1520g.
The distrubution is 63% rear and 37% front.

/Mr. Pink
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Old 07-07-2009
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How did you make the bodyshell with soda bottles?
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  #14  
Old 07-07-2009
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I am using the same method as one of my racing buddys.
http://rc10b4.blogspot.com/2008/11/h...en-kaross.html

Simply a mold out of wood and the bottle acts exactly as a shrink-wrap when heated with a hot air gun.
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  #15  
Old 08-07-2009
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And a painted body...

Maybe the color is not to everyones liking but I like cars that stand out.

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Old 09-07-2009
Tom3012 Tom3012 is offline
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Stupid question but, what size and brand of bottle did you use, im struggling to get one big enough for my custom car. Yours looks great btw!!
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  #17  
Old 09-07-2009
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I am using 1,5l coca cola bottles.
But before cutting the bottle apart to wrap around the mold I drill a small hole in the cap and pump up a pressure with a bicycle pump. (around 2 bar) Then I carfully go over the bottom end with the heat gun to smoothen out the bottom end. This gives me a little more plastic to work with.
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  #18  
Old 09-07-2009
mrspeedy mrspeedy is offline
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It wouldn't be very expensive to have a decent shell made form polycarbonate if you where to make the mould yourself .. ....

Nice job on the car BTW ....
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  #19  
Old 10-07-2009
caneye caneye is offline
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hi .. nice work there

what did u have to do to achieve the reverse gear rotation?
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  #20  
Old 10-07-2009
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Its not reversed at all. The motor is positioned the same as usual. Same rotation as normal. Just on the other side of the gear box.
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