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Old 03-10-2010, 08:08 AM
  #18691  
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Originally Posted by trickd122
Sean Williams (teammate) and Hiro Kasuya (R&D specialist) now build their diffs this way after watching me do it at the Reedy Race.
Humm, i have never seen Korey's diff building method.
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Old 03-10-2010, 08:33 AM
  #18692  
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Hi I have posted many pictures of my baby on here and have had many approving looks, but I have decided that she needs a new, loving home and someone who can lavish the time on her.

She started life as a Cyclone Sport, but she has been added to over the last 6 months and she now stands here fully modded and ready to face a new owner.

List of Parts added to her as follows:

3 Racing Chassis with Battery retaining Lugs (LiPo's have NEVER come out.
3 Racing Silver SSG Top deck,
3 Racing Silver SSG Shock towers
3 Racing Silver SSG mid deck and
3 Racing Silver SSG bumper brace
Hara (Blue) edition Steering arm
HPI Pro 4 Toe blocks Front and rear
3 Racing Alloy FR & RF hinge hangers
Pro 4 Wishbones
Pro 4 Purple Alloy MIP CVD's Front and rear
3 Racing Sway bar sets front and rear
3 Racing Purple Alloy Upper bulkheads front and rear
3 Racing Purple alloy Lower Bulkheads Front and rear
3 Racing Purple Alloy Servo mounts
3 Racing Purple Alloy Diff bearing holders Front and rear
3 Racing Purple Alloy Spool with custom made 40 Tooth (Yokomo) pulley
3 Racing Purple Alloy battery side rear mount with
HB Purple alloy Motor Mount
3 Racing Purple Alloy Layshaft with Delrin 17 Tooth Pulleys
Modified Front and rear belts (Same as TC)
3 Racing Purple Alloy Motor Heatsink and Fan
Custom Built Hybrid rear diff, (40 Tooth) with Ceramic Diff balls.
HPI Pro 4 Purple Alloy crewdown Shocks with
3 Racing Purple Alloy shock caps.
HPI Pro 3 Purple Alloy (Wide) Rear Wheel Hexes
HPI Pro 4 Purple Alloy (Narrow) Front Wheel hexes.
HPI Pro 4 Titanium Camber Links

The 3 Racing Chassis is pre drilled for the FR Conversion discussed elsewhere and the car drives like a dream, has never been anywhere other than carpet and has been lovingly built up over the last 6 months or so, there are some odds and bits of spares but TBH I have hardly ever broken anything on her in all my time with her.

She does at this time have a 'homemade' LiPo Holder on her as an experiment with balance, this can be included but she looks much better without it.

Am laying this down for Offers only, please PM them and I will take a look as it has cost me over £400 ($570) to get her this far and I am NOT desperate to sell her as she is my current 'in use' car.

the car is a rolling chassis with NO electronics or shell, but she will, I am sure, make someone very very happy indeed.








Thanks for Looking.
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Old 03-10-2010, 10:10 AM
  #18693  
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Originally Posted by Hi-LowBlow
Humm, i have never seen Korey's diff building method.
I know Sean did it that way at the reedy race after he saw me do that. I think you just commented at reedy you would try that sometime lol.

-Korey
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Old 03-10-2010, 12:45 PM
  #18694  
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Some pictures of mine...

Left profile

Gear details

Not really efficient but so cool!

Exotek powaaaa!

All credits go to www.overrc.com

NB: Can't publish the pictures directly, they were too HUGE!
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Old 03-11-2010, 12:02 AM
  #18695  
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Default Thick frame TC

Hi guys, I have a question for you, what is the right thickness of the frame TC?
I have two frames and are of different thickness, one is 2.4 mm and the other 2.6 mm.
There should be 2.5mm?
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Old 03-11-2010, 01:19 AM
  #18696  
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Thats interesting, but not entirely unheard of. Sometimes just from manufacturing tolerances from the suppliers, the thicknesses of the chassis might vary batch to batch. Usually the general specification is 2.5mm, but I wouldn't worry about it much. As long as it's not tweaked, you'll be fine with either one.

On that note, I have to say I really like the Exotek chassis so far. The car was super balanced. Before I've always felt that moving the battery way out to balance the car still made the car feel unbalanced on the track. The combination of the placement of the battery, the weight hooks, and the lack of cutouts make the chassis feel very balanced. Overall, and awesome product upon initial testing. I'll continue to run it here in our last round of the NWIC carpet series.

-Korey
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Old 03-11-2010, 01:41 AM
  #18697  
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Originally Posted by Korey Harbke
Thats interesting, but not entirely unheard of. Sometimes just from manufacturing tolerances from the suppliers, the thicknesses of the chassis might vary batch to batch. Usually the general specification is 2.5mm, but I wouldn't worry about it much. As long as it's not tweaked, you'll be fine with either one.

On that note, I have to say I really like the Exotek chassis so far. The car was super balanced. Before I've always felt that moving the battery way out to balance the car still made the car feel unbalanced on the track. The combination of the placement of the battery, the weight hooks, and the lack of cutouts make the chassis feel very balanced. Overall, and awesome product upon initial testing. I'll continue to run it here in our last round of the NWIC carpet series.

-Korey
Thanks Korey, maybe I will be purchasing the chassis Exotek has a good balance but unfortunately his weight with his system of block cells (60 grams) is very high, in Italy the minimum weight is 1350 grams, and the only way to save weight and balance is to remove the ballast and remove the batteries out.
At the moment I only have two chassis TC (one new) and now I will try to have these waiting for the new model, hoping it arrives soon ...
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Old 03-11-2010, 02:08 AM
  #18698  
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Originally Posted by AGNO
Thanks Korey, maybe I will be purchasing the chassis Exotek has a good balance but unfortunately his weight with his system of block cells (60 grams) is very high, in Italy the minimum weight is 1350 grams, and the only way to save weight and balance is to remove the ballast and remove the batteries out.
At the moment I only have two chassis TC (one new) and now I will try to have these waiting for the new model, hoping it arrives soon ...
Did you know that Exotek also makes a chassis kit with the Europeans in mind? Instead of the stainless steel battery retainers, it's all carbon fiber. I'm not sure if he positioned them any different, but you would still get the other benefits of the chassis plate.

http://www41.instantestore.net/merchant10762/pd-hbx.cfm

-Korey
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Old 03-11-2010, 03:59 AM
  #18699  
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Did you know that Exotek also makes a chassis kit with the Europeans in mind? Instead of the stainless steel battery retainers, it's all carbon fiber. I'm not sure if he positioned them any different, but you would still get the other benefits of the chassis plate.

http://www41.instantestore.net/merchant10762/pd-hbx.cfm

-Korey




Not know ... very interesting.

Thanks korey
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Old 03-11-2010, 04:03 AM
  #18700  
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Originally Posted by Korey Harbke
Did you know that Exotek also makes a chassis kit with the Europeans in mind? Instead of the stainless steel battery retainers, it's all carbon fiber. I'm not sure if he positioned them any different, but you would still get the other benefits of the chassis plate.

http://www41.instantestore.net/merchant10762/pd-hbx.cfm

-Korey
gotta say that annoys me a bit as i just got the original hbx chassis and I was working on making it lighter to fit the rules here. plus this new chassis seems to have some other nice features.
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Old 03-11-2010, 04:39 AM
  #18701  
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Originally Posted by Korey Harbke
Did you know that Exotek also makes a chassis kit with the Europeans in mind? Instead of the stainless steel battery retainers, it's all carbon fiber. I'm not sure if he positioned them any different, but you would still get the other benefits of the chassis plate.

http://www41.instantestore.net/merchant10762/pd-hbx.cfm

-Korey
I didn't know MikeR revised this chassis so that the belts can be reversed

anyone else try reversing the belts like Hara's prototype used at the TITC??
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Old 03-11-2010, 06:01 AM
  #18702  
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Originally Posted by k_bojar
I didn't know MikeR revised this chassis so that the belts can be reversed

anyone else try reversing the belts like Hara's prototype used at the TITC??
here in brazil some guys reverse the belts. to use electric more in center of the car. but we dont use exoteck chassi.

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Old 03-11-2010, 06:17 AM
  #18703  
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I ran my drivetrain flipped at DHI using stock TC chassis.
Flip diffs and layshaft, then add an extra bearing on the left side to space out the play.
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Old 03-11-2010, 07:19 AM
  #18704  
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Originally Posted by k_bojar
I didn't know MikeR revised this chassis so that the belts can be reversed

anyone else try reversing the belts like Hara's prototype used at the TITC??
If you use heavy batteries of 280 gr mh type 5000 is not necessary to turn the transmission, the car is balanced only by moving outside the batteries without moving into electronics.
Moving the transmission and electronics to balance the machine is needed when using lightweight batteries 3800/4000 mh of 240 grams, with this configuration makes the car very light and balanced.
The prototype of Hara, from what we can see from the photos shows a very narrow transmission, batteries are in place almost within the standard model even with the transmission then reversed it becomes necessary to move the electronics inside the balance With this configuration you have a car with weights very centered with advantage on handling.
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Old 03-11-2010, 08:22 AM
  #18705  
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Originally Posted by AGNO
If you use heavy batteries of 280 gr mh type 5000 is not necessary to turn the transmission, the car is balanced only by moving outside the batteries without moving into electronics.
Moving the transmission and electronics to balance the machine is needed when using lightweight batteries 3800/4000 mh of 240 grams, with this configuration makes the car very light and balanced.
The prototype of Hara, from what we can see from the photos shows a very narrow transmission, batteries are in place almost within the standard model even with the transmission then reversed it becomes necessary to move the electronics inside the balance With this configuration you have a car with weights very centered with advantage on handling.
gotcha - i was just curious about flipping the belts to see if i can get the front belt off the motor mount

i'm assuming the rear diff won't loosen when its put in backwards?
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