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Old 04-23-2009, 03:13 PM
  #606  
jopor
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Join Date: Oct 2007
Location: Portugal
Posts: 42
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Originally Posted by Martin Hofer
there are enough drivers here in germany using a 4T or 7T delta with 5 cells and it'S fast enough ... and easy on the electronicsso I cannot understand why a 7T delta with LIPO would not be fast enough ...
Martin you say that because most of the tracks are narrow/small so thatīs why you say with 7T Delta and 5 cells is fast enough but when you go for a large track youīll see the difference between 6T and 7T Delta.

Originally Posted by Slideaway
Hi Jopor, I'm not sure which worlds track are we talking about. If you mean the last ISTC Worlds track in Bangkok Thailand so yes, this track was actually very stressful for modified class. Not so long straight line and many rhythm changes in the corners section. At that time, the IFMAR rule was to use 6 cells SUB-C only. So mostly, the modified class drivers used 4.0t or 4.5t with a secured ratio. Combined with the air and track temperatures, it was really like hell. Some motors could reach 110°C after 5 min. The limits were reached and beyond sometimes.Slide
Now iīm not going to respond but leave Juraj Hudy do it
“The Worlds track layout was completely different from the practice layout where the corners were sharp and a lot of chicanes. Now the Worlds track had long and smooth corners so this was not the place for aggressiveness and sharp handling. To keep at the pace there was no space to push in the corners and a high need for a very smooth throttle finger”

As you see you can run on a large track that can be more stressful to your motor and ESC than a small/narrow one, it depends of the corners you have, in that track on Thailand you didnīt have to brake so much.

during practice we always see the Motor/ESC/Batteries temp to see if itīs okay or need to be adjust (gearing) and if itīs better to put 6, 7 or 8T Delta because of handling the power of the motor for that specific track.
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