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captain harlock
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Posts: 2,745
Join Date: Mar 2005
Location: Saudi Arabia
05.02.2005, 08:32 AM

Well...if you say so Lipo guy. I thought that the 1930 motor has enough power to pull the T4 to at least 45 mph, however, I knew some how especially after M.Mike had told me that smaller rotors spool up faster than bigger ones that there is really a segnificant difference between the 1930, 1920 and KONTRONIK'S FUN 480-42 motors in terms of acceleration and fast spool ups. The FUN 480-42 wins easily against the rest of the others. I have tried it on 7.2 volts in a B4 and the power was similar to a 13-14 turn brushed motors and the acceleration was okay, but things were absolutely incredible when I supported it with a 12 volts pack. The B4 with an on road tires made back wheelies the whole time and it was almost impossible to drive it at full throttle and when you push the throttle to it's fullest point and steer the buggy it's like a crazy fan rotating on the ground..hehe..that was some experience indeed. The 1920/8 turn however, is not as fast as the 480-42 motor when it accelerate, but it's surely much cooler than the 480-42 after few runs and the 1930/5 turn in the other hand is like an old geezer who can bearly accelerate, but he can give you some good top speeds @8.4 volts so I'm curiuos to see what it can deliver with a 13.2 volts pack. The tranny ratio( this one is the ratio of the T4 which is the same as the B4) is 2.40:1 and the F.D.R is 10.5:1 which is in my opinion a very logical gear ratio comparing it to the huge amount of power the 1930 can put and yes it can only give 4180 rpm@1 volt so I guess that is one reason why it is not fast. Well that's all..for now at least.


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